fix foreground service and add notification nav

wraps MaterialApp in WithForegroundService to keep alive when swiped away

persists last connected device and clears on manual disconnect to allow
reconnect after kill

added lifecycle tracking to iOS and keep android notification alive with
heartbeat

add notification navigation

change screen tests to be less brittle

address PR commnets

.gitignore

@@ -33,6 +33,9 @@ migrate_working_dir/
 pubspec.lock
 /build/
 /coverage/
+# fvm project files
+.fvm/
+.fvmrc
 
 # Symbolication related
 app.*.symbols

AGENTS.md

@@ -6,7 +6,7 @@
 
 ## BLE Frames & Protocol Notes
 - Nordic UART Service (NUS) UUIDs: Service `6e400001-b5a3-f393-e0a9-e50e24dcca9e`, RX `6e400002-b5a3-f393-e0a9-e50e24dcca9e`, TX `6e400003-b5a3-f393-e0a9-e50e24dcca9e`.
-- Discovery: scans for device name prefix `MeshCore-` and filters by `platformName`/`advertisementData.advName`.
+- Discovery: scans for device names matching known prefixes and filters by `platformName`/`advertisementData.advName`.
 - Frames are capped at `maxFrameSize = 172` bytes; byte 0 is the command/response/push code. I/O is `MeshCoreConnector.sendFrame` and `MeshCoreConnector.receivedFrames`.
 - Command codes (to device): `cmdAppStart`=1, `cmdSendTxtMsg`=2, `cmdSendChannelTxtMsg`=3, `cmdGetContacts`=4, `cmdGetDeviceTime`=5, `cmdSetDeviceTime`=6, `cmdSendSelfAdvert`=7, `cmdSetAdvertName`=8, `cmdAddUpdateContact`=9, `cmdSyncNextMessage`=10, `cmdSetRadioParams`=11, `cmdSetRadioTxPower`=12, `cmdResetPath`=13, `cmdSetAdvertLatLon`=14, `cmdRemoveContact`=15, `cmdShareContact`=16, `cmdExportContact`=17, `cmdImportContact`=18, `cmdReboot`=19, `cmdSendLogin`=26, `cmdGetChannel`=31, `cmdSetChannel`=32, `cmdGetRadioSettings`=57.
 - Response codes (from device): `respCodeOk`=0, `respCodeErr`=1, `respCodeContactsStart`=2, `respCodeContact`=3, `respCodeEndOfContacts`=4, `respCodeSelfInfo`=5, `respCodeSent`=6, `respCodeContactMsgRecv`=7, `respCodeChannelMsgRecv`=8, `respCodeCurrTime`=9, `respCodeNoMoreMessages`=10, `respCodeContactMsgRecvV3`=16, `respCodeChannelMsgRecvV3`=17, `respCodeChannelInfo`=18, `respCodeRadioSettings`=25.

CLAUDE.md

@@ -61,7 +61,7 @@ lib/
 - **TX Characteristic**: `6e400003-b5a3-f393-e0a9-e50e24dcca9e` (Notify from device)
 
 ### Device Discovery
-- Scans for devices with name prefix `MeshCore-`
+- Scans for devices with known name prefixes
 - Filters by `platformName` or `advertisementData.advName`
 
 ### Connection States

CONTRIBUTING.md

@@ -0,0 +1,71 @@
+# How to contribute to Meshcore Open
+
+Before submitting any pull requests (PR), please review the following information.
+
+Unsolicited PRs without previous discussion or open issues may be
+rejected. As may changes that are too broad (i.e. 100 files changed) or that
+cover too many separate changes. If the changes are clearly AI generated they
+may also be rejected. [See more](#ai-use)
+
+## First Step Checklist
+
+### **Did you find a bug?**
+
+* **Ensure the bug was not already reported** by searching on GitHub under [Issues](https://github.com/zjs81/meshcore-open/issues).
+
+* If you're unable to find an open issue addressing the problem, [open a new one](https://github.com/zjs81/meshcore-open/issues/new).
+Be sure to include a **title and clear description**, as much relevant
+information as possible, and a **code sample** or an **executable test case**
+demonstrating the expected behavior that is not occurring. You can also include
+screenshots or video.
+
+* DO NOT start work and submit a PR at this time, please discuss the issue and
+your implementation plan first.
+
+### **Did you fix whitespace, format code, or make a purely cosmetic patch?**
+
+Changes that are cosmetic in nature and do not add anything substantial to the
+stability, functionality, or testability of the application will generally not
+be accepted.
+
+### **Do you intend to add a new feature or change an existing one?**
+
+* Suggest your change in a new issue as a feature request.
+
+* DO NOT start work and submit a PR at this time, please discuss the change and
+your implementation plan first.
+
+* After it is generally decided that the feature or change fits the goals of the
+project you can start work or open a PR if you have already started.
+
+## Submitting your patch
+
+* All changes should be based on the `dev` branch. When creating your PR please
+be sure to change the target to merge into dev, and when starting work on a new
+branch be sure to start on latest `dev`.
+
+* Ensure the PR description clearly describes the problem and solution. Include
+the relevant issue number if applicable.
+
+* The PR should contain **one commit** only, the commit message should have a
+clear title followed by a new line and then brief description if needed. PR with
+multiple commits will be squashed into one before merging if required. See
+[Git Mastery](https://git-mastery.org/lessons/commitMessage/) for more
+information on good commit messages.
+
+* **Before committing changes** on your branch, be sure to run both
+`dart format .` and `flutter analyze`. The continuous development checks will
+fail if issues here are not addressed before hand.
+
+## AI-use
+
+Everyone loves some help, AI agents are a tool in many of our belts. The project
+is not anti-AI.
+
+There are some limits to acceptable use however. Generally:
+
+* All code generated by AI should be thoroughly reviewed by the contributor.
+* The changes should be tightly controlled to not change anything out of scope
+for the patch, bug fix, etc.
+* The contributor should have a good understanding of what the code does and how
+the application works in order to effectively be able to manage the agent.

README.md

@@ -150,7 +150,8 @@ lib/
 ├── main.dart                    # App entry point
 ├── connector/
 │   ├── meshcore_connector.dart  # BLE communication & state management
-│   └── meshcore_protocol.dart   # Protocol definitions & frame parsing
+│   ├── meshcore_protocol.dart   # Protocol definitions & frame parsing
+│   └── meshcore_uuids.dart      # Device names and IDs (add prefixes here!)
 ├── screens/
 │   ├── scanner_screen.dart      # Device scanning (home screen)
 │   ├── contacts_screen.dart     # Contact list
@@ -184,7 +185,15 @@ lib/
 
 ### Device Discovery
 
-Devices are discovered by scanning for BLE advertisements with the name prefix `MeshCore-`
+Devices are discovered by scanning for BLE advertisements with known MeshCore device name prefixes. These are currently:
+    - `MeshCore-`
+    - `Whisper-`
+    - `WisCore-`
+    - `HT-`
+    - `LowMesh_MC_`
+
+New device prefixes can be added in `lib/connector/meshcore_uuids.dart`.
+
 
 ### Message Format
 

docs/BLE_PROTOCOL.md

@@ -21,7 +21,12 @@ The MeshCore BLE protocol implements a binary frame-based communication system u
 
 ### Connection Flow
 
-1. **Scan** for devices with name prefix `MeshCore-`
+1. **Scan** for devices with known name prefixes (defined in `MeshCoreUuids.deviceNamePrefixes`):
+    - `MeshCore-`
+    - `Whisper-`
+    - `WisCore-`
+    - `HT-`
+    - `LowMesh_MC_`
 2. **Connect** with 15-second timeout
 3. **Request MTU** of 185 bytes (falls back to default if unsupported)
 4. **Discover services** and locate NUS characteristics

documentation/ble-protocol.md

@@ -49,7 +49,12 @@ enum MeshCoreConnectionState {
 
 ## BLE Connection Lifecycle
 
-1. **Scan** with keyword filters `["MeshCore-", "Whisper-"]`
+1. **Scan** with known name prefixes (defined in `MeshCoreUuids.deviceNamePrefixes`):
+    - `MeshCore-`
+    - `Whisper-`
+    - `WisCore-`
+    - `HT-`
+    - `LowMesh_MC_`
 2. **Connect** with 15-second timeout
 3. **Request MTU** 185 bytes (non-web only)
 4. **Discover services** and locate NUS

lib/connector/meshcore_connector.dart

@@ -14,6 +14,7 @@ import '../models/companion_radio_stats.dart';
 import '../models/contact.dart';
 import '../models/message.dart';
 import '../models/path_selection.dart';
+import '../models/translation_support.dart';
 import '../helpers/reaction_helper.dart';
 import '../helpers/smaz.dart';
 import '../services/app_debug_log_service.dart';
@@ -26,6 +27,7 @@ import '../services/path_history_service.dart';
 import '../services/app_settings_service.dart';
 import '../services/background_service.dart';
 import '../services/timeout_prediction_service.dart';
+import '../services/translation_service.dart';
 import '../services/notification_service.dart';
 import 'meshcore_connector_usb.dart';
 import 'meshcore_connector_tcp.dart';
@@ -38,6 +40,7 @@ import '../storage/contact_settings_store.dart';
 import '../storage/contact_store.dart';
 import '../storage/message_store.dart';
 import '../storage/unread_store.dart';
+import '../storage/last_device_store.dart';
 import '../utils/app_logger.dart';
 import '../utils/battery_utils.dart';
 import '../utils/platform_info.dart';
@@ -102,6 +105,22 @@ class RepeaterBatterySnapshot {
   });
 }
 
+class MeshCoreRadioStateSnapshot {
+  final int freqHz;
+  final int bwHz;
+  final int sf;
+  final int cr;
+  final int txPowerDbm;
+
+  const MeshCoreRadioStateSnapshot({
+    required this.freqHz,
+    required this.bwHz,
+    required this.sf,
+    required this.cr,
+    required this.txPowerDbm,
+  });
+}
+
 class MeshCoreConnector extends ChangeNotifier {
   // Message windowing to limit memory usage
   static const int _messageWindowSize = 200;
@@ -167,6 +186,7 @@ class MeshCoreConnector extends ChangeNotifier {
   int? _currentSf;
   int? _currentCr;
   bool? _clientRepeat;
+  MeshCoreRadioStateSnapshot? _rememberedNonRepeatRadioState;
   int? _firmwareVerCode;
   int _pathHashByteWidth = 1;
   CompanionRadioStats? _latestRadioStats;
@@ -180,6 +200,7 @@ class MeshCoreConnector extends ChangeNotifier {
   bool _isLoadingChannels = false;
   bool _hasLoadedChannels = false;
   TimeoutPredictionService? _timeoutPredictionService;
+  TranslationService? _translationService;
   // Intentionally global (not per-contact): tracks overall network activity.
   // Frequent RX from any source indicates a busy network with more collisions.
   DateTime _lastRxTime = DateTime.now();
@@ -261,6 +282,7 @@ class MeshCoreConnector extends ChangeNotifier {
   final ContactDiscoveryStore _discoveryContactStore = ContactDiscoveryStore();
   final ChannelStore _channelStore = ChannelStore();
   final UnreadStore _unreadStore = UnreadStore();
+  final LastDeviceStore _lastDeviceStore = LastDeviceStore();
   List<Channel> _cachedChannels = [];
   final Map<int, bool> _channelSmazEnabled = {};
   bool _lastSentWasCliCommand =
@@ -366,6 +388,8 @@ class MeshCoreConnector extends ChangeNotifier {
   int? get currentBwHz => _currentBwHz;
   int? get currentSf => _currentSf;
   int? get currentCr => _currentCr;
+  MeshCoreRadioStateSnapshot? get rememberedNonRepeatRadioState =>
+      _rememberedNonRepeatRadioState;
   bool? get autoAddUsers => _autoAddUsers;
   bool? get autoAddRepeaters => _autoAddRepeaters;
   bool? get autoAddRoomServers => _autoAddRoomServers;
@@ -377,6 +401,10 @@ class MeshCoreConnector extends ChangeNotifier {
   int get advertLocationPolicy => _advertLocPolicy;
   int get multiAcks => _multiAcks;
   bool? get clientRepeat => _clientRepeat;
+  void rememberNonRepeatRadioState(MeshCoreRadioStateSnapshot snapshot) {
+    _rememberedNonRepeatRadioState = snapshot;
+  }
+
   int? get firmwareVerCode => _firmwareVerCode;
   Map<String, String>? get currentCustomVars => _currentCustomVars;
   int? get batteryMillivolts => _batteryMillivolts;
@@ -489,7 +517,7 @@ class MeshCoreConnector extends ChangeNotifier {
 
   String _messageMergeKey(Message message) {
     final messageId = message.messageId;
-    if (messageId != null && messageId.isNotEmpty) {
+    if (messageId.isNotEmpty) {
       return 'id:$messageId';
     }
     return 'fallback:${message.senderKeyHex}:${message.isOutgoing}:${message.isCli}:${message.timestamp.millisecondsSinceEpoch}:${message.text}';
@@ -728,6 +756,7 @@ class MeshCoreConnector extends ChangeNotifier {
     required MessageRetryService retryService,
     required PathHistoryService pathHistoryService,
     AppSettingsService? appSettingsService,
+    TranslationService? translationService,
     BleDebugLogService? bleDebugLogService,
     AppDebugLogService? appDebugLogService,
     BackgroundService? backgroundService,
@@ -736,10 +765,15 @@ class MeshCoreConnector extends ChangeNotifier {
     _retryService = retryService;
     _pathHistoryService = pathHistoryService;
     _appSettingsService = appSettingsService;
+    _translationService = translationService;
     _bleDebugLogService = bleDebugLogService;
     _appDebugLogService = appDebugLogService;
     _backgroundService = backgroundService;
     _timeoutPredictionService = timeoutPredictionService;
+
+    // When the app resumes from background, check if we need to reconnect.
+    _backgroundService?.onResume = _onAppResumed;
+
     _usbManager.setDebugLogService(_appDebugLogService);
     _tcpConnector.setDebugLogService(_appDebugLogService);
 
@@ -959,6 +993,126 @@ class MeshCoreConnector extends ChangeNotifier {
     }
   }
 
+  Future<void> _translateIncomingContactMessage(
+    String contactKeyHex,
+    Message message,
+  ) async {
+    try {
+      final service = _translationService;
+      if (service == null ||
+          !service.shouldTranslateIncoming(
+            text: message.text,
+            isCli: message.isCli,
+            isOutgoing: message.isOutgoing,
+          )) {
+        return;
+      }
+      final targetLanguageCode = service.resolvedIncomingLanguageCode(
+        _appSettingsService?.settings.languageOverride,
+      );
+      final result = await service.translateIncomingText(
+        text: message.text,
+        targetLanguageCode: targetLanguageCode,
+      );
+      if (result == null) {
+        return;
+      }
+      final translated = result.status == MessageTranslationStatus.completed
+          ? result.translatedText
+          : null;
+      _updateStoredContactMessage(
+        contactKeyHex,
+        message.messageId,
+        (current) => current.copyWith(
+          translatedText: translated,
+          translatedLanguageCode: result.detectedLanguageCode,
+          translationStatus: result.status,
+          translationModelId: result.modelId,
+        ),
+      );
+    } catch (error) {
+      appLogger.warn('Translation failed for contact message: $error');
+    }
+  }
+
+  Future<void> _translateIncomingChannelMessage(
+    int channelIndex,
+    ChannelMessage message,
+  ) async {
+    try {
+      final service = _translationService;
+      if (service == null ||
+          !service.shouldTranslateIncoming(
+            text: message.text,
+            isCli: false,
+            isOutgoing: message.isOutgoing,
+          )) {
+        return;
+      }
+      final targetLanguageCode = service.resolvedIncomingLanguageCode(
+        _appSettingsService?.settings.languageOverride,
+      );
+      final result = await service.translateIncomingText(
+        text: message.text,
+        targetLanguageCode: targetLanguageCode,
+      );
+      if (result == null) {
+        return;
+      }
+      final translated = result.status == MessageTranslationStatus.completed
+          ? result.translatedText
+          : null;
+      _updateStoredChannelMessage(
+        channelIndex,
+        message.messageId,
+        (current) => current.copyWith(
+          translatedText: translated,
+          translatedLanguageCode: result.detectedLanguageCode,
+          translationStatus: result.status,
+          translationModelId: result.modelId,
+        ),
+      );
+    } catch (error) {
+      appLogger.warn('Translation failed for channel message: $error');
+    }
+  }
+
+  void _updateStoredContactMessage(
+    String contactKeyHex,
+    String messageId,
+    Message Function(Message current) update,
+  ) {
+    final messages = _conversations[contactKeyHex];
+    if (messages == null) {
+      return;
+    }
+    final index = messages.indexWhere((entry) => entry.messageId == messageId);
+    if (index < 0) {
+      return;
+    }
+    messages[index] = update(messages[index]);
+    _messageStore.saveMessages(contactKeyHex, messages);
+    notifyListeners();
+  }
+
+  void _updateStoredChannelMessage(
+    int channelIndex,
+    String messageId,
+    ChannelMessage Function(ChannelMessage current) update,
+  ) {
+    final messages = _channelMessages[channelIndex];
+    if (messages == null) {
+      return;
+    }
+    final index = messages.indexWhere((entry) => entry.messageId == messageId);
+    if (index < 0) {
+      return;
+    }
+    messages[index] = update(messages[index]);
+    _channelMessageStore.saveChannelMessages(channelIndex, messages);
+    notifyListeners();
+  }
+
   void _recordPathResult(
     String contactPubKeyHex,
     PathSelection selection,
@@ -1731,6 +1885,7 @@ class MeshCoreConnector extends ChangeNotifier {
       );
 
       _setState(MeshCoreConnectionState.connected);
+      _lastDeviceStore.persistLastDevice(_deviceId!, _deviceDisplayName!);
       if (_shouldGateInitialChannelSync) {
         _hasReceivedDeviceInfo = false;
         _pendingInitialChannelSync = true;
@@ -2077,6 +2232,56 @@ class MeshCoreConnector extends ChangeNotifier {
     });
   }
 
+  /// Called by [BackgroundService] when the app returns to the foreground.
+  /// If the BLE connection was lost while backgrounded, this kicks off an
+  /// immediate reconnect attempt instead of waiting for the next timer tick.
+  void _onAppResumed() {
+    if (_shouldAutoReconnect &&
+        _state != MeshCoreConnectionState.connected &&
+        _state != MeshCoreConnectionState.connecting) {
+      _appDebugLogService?.info(
+        'App resumed – triggering reconnect check',
+        tag: 'Lifecycle',
+      );
+      _cancelReconnectTimer();
+      _scheduleReconnect();
+    } else if (_state == MeshCoreConnectionState.disconnected &&
+        _lastDeviceId == null) {
+      // App was fully restarted (swiped away).  Try to restore from prefs.
+      tryAutoReconnect();
+    }
+  }
+
+  /// Attempt to reconnect to the last persisted BLE device.
+  ///
+  /// Called on fresh app start (after a swipe-away kill) so the user is
+  /// brought straight back to the connected state instead of the scan screen.
+  Future<bool> tryAutoReconnect() async {
+    if (_state == MeshCoreConnectionState.connecting ||
+        _state == MeshCoreConnectionState.connected) {
+      return false;
+    }
+    final deviceId = _lastDeviceStore.getPersistedDeviceId();
+    if (deviceId!.isEmpty) {
+      return false;
+    }
+
+    final displayName = _lastDeviceStore.getPersistedDeviceName();
+    _appDebugLogService?.info(
+      'Auto-reconnecting to $deviceId ($displayName)',
+      tag: 'Lifecycle',
+    );
+
+    try {
+      final device = BluetoothDevice.fromId(deviceId);
+      await connect(device, displayName: displayName);
+      return true;
+    } catch (e) {
+      _appDebugLogService?.error('Auto-reconnect failed: $e', tag: 'Lifecycle');
+      return false;
+    }
+  }
+
   Future<void> disconnect({
     bool manual = true,
     bool skipBleDeviceDisconnect = false,
@@ -2097,6 +2302,8 @@ class MeshCoreConnector extends ChangeNotifier {
     if (manual) {
       _manualDisconnect = true;
       _cancelReconnectTimer();
+      _lastDeviceStore.clearPersistedDevice();
+      _notificationService.cancelAll();
       unawaited(_backgroundService?.stop());
     } else {
       _manualDisconnect = false;
@@ -2123,6 +2330,7 @@ class MeshCoreConnector extends ChangeNotifier {
     _channelSyncTimeout?.cancel();
     _channelSyncTimeout = null;
     _channelSyncRetries = 0;
+    await _translationService?.releaseModel();
 
     if (!skipBleDeviceDisconnect) {
       try {
@@ -2152,6 +2360,7 @@ class MeshCoreConnector extends ChangeNotifier {
     _selfLatitude = null;
     _selfLongitude = null;
     _clientRepeat = null;
+    _rememberedNonRepeatRadioState = null;
     _firmwareVerCode = null;
     _batteryMillivolts = null;
     _repeaterBatterySnapshots.clear();
@@ -2423,7 +2632,13 @@ class MeshCoreConnector extends ChangeNotifier {
     await sendFrame(buildGetContactByKeyFrame(pubKey));
   }
 
-  Future<void> sendMessage(Contact contact, String text) async {
+  Future<void> sendMessage(
+    Contact contact,
+    String text, {
+    String? originalText,
+    String? translatedLanguageCode,
+    String? translationModelId,
+  }) async {
     if (!isConnected || text.isEmpty) return;
 
     // Check if this is a reaction - apply locally with pending status and route through retry service
@@ -2454,7 +2669,13 @@ class MeshCoreConnector extends ChangeNotifier {
     }
 
     if (_retryService != null) {
-      await _retryService!.sendMessageWithRetry(contact: contact, text: text);
+      await _retryService!.sendMessageWithRetry(
+        contact: contact,
+        text: text,
+        originalText: originalText,
+        translatedLanguageCode: translatedLanguageCode,
+        translationModelId: translationModelId,
+      );
     } else {
       // Fallback to old behavior if retry service not initialized
       final resolved = resolvePathSelection(contact);
@@ -2463,6 +2684,9 @@ class MeshCoreConnector extends ChangeNotifier {
         text,
         pathLength: resolved.useFlood ? -1 : resolved.hopCount,
         pathBytes: Uint8List.fromList(resolved.pathBytes),
+        originalText: originalText,
+        translatedLanguageCode: translatedLanguageCode,
+        translationModelId: translationModelId,
       );
       _addMessage(contact.publicKeyHex, message);
       notifyListeners();
@@ -2768,7 +2992,13 @@ class MeshCoreConnector extends ChangeNotifier {
     }
   }
 
-  Future<void> sendChannelMessage(Channel channel, String text) async {
+  Future<void> sendChannelMessage(
+    Channel channel,
+    String text, {
+    String? originalText,
+    String? translatedLanguageCode,
+    String? translationModelId,
+  }) async {
     if (!isConnected || text.isEmpty) return;
 
     // Check if this is a reaction - if so, process it immediately instead of adding as a message
@@ -2815,6 +3045,9 @@ class MeshCoreConnector extends ChangeNotifier {
       text,
       _selfName ?? 'Me',
       channel.index,
+      originalText: originalText,
+      translatedLanguageCode: translatedLanguageCode,
+      translationModelId: translationModelId,
     );
     _addChannelMessage(channel.index, message);
     _pendingChannelSentQueue.add(message.messageId);
@@ -3753,7 +3986,9 @@ class MeshCoreConnector extends ChangeNotifier {
     if (mlTimeout != null) {
       if (pathLength < 0) {
         // Flood: trust ML, only enforce firmware formula as floor
-        return mlTimeout.clamp(physicsMin, mlTimeout);
+        if (mlTimeout < physicsMin) {
+          return physicsMin;
+        }
       }
       return mlTimeout.clamp(physicsMin, physicsMax);
     }
@@ -3800,11 +4035,14 @@ class MeshCoreConnector extends ChangeNotifier {
           tag: 'Connector',
         );
 
-        // CRITICAL: Preserve user's path override when contact is refreshed from device
+        // Preserve user-selected path settings and previously known GPS when
+        // refreshed frames omit coordinates (lat/lon encoded as 0,0).
         _contacts[existingIndex] = contact.copyWith(
           lastMessageAt: mergedLastMessageAt,
           pathOverride: existing.pathOverride, // Preserve user's path choice
           pathOverrideBytes: existing.pathOverrideBytes,
+          latitude: contact.latitude ?? existing.latitude,
+          longitude: contact.longitude ?? existing.longitude,
         );
 
         appLogger.info(
@@ -4098,6 +4336,11 @@ class MeshCoreConnector extends ChangeNotifier {
         }
       }
       _addMessage(message.senderKeyHex, message);
+      if (!message.isOutgoing) {
+        unawaited(
+          _translateIncomingContactMessage(message.senderKeyHex, message),
+        );
+      }
       _maybeIncrementContactUnread(message);
       notifyListeners();
 
@@ -4320,6 +4563,11 @@ class MeshCoreConnector extends ChangeNotifier {
         pathBytes: message.pathBytes,
       );
       final isNew = _addChannelMessage(message.channelIndex!, message);
+      if (isNew && !message.isOutgoing) {
+        unawaited(
+          _translateIncomingChannelMessage(message.channelIndex!, message),
+        );
+      }
       _maybeIncrementChannelUnread(message, isNew: isNew);
       notifyListeners();
       if (isNew) {
@@ -4399,6 +4647,9 @@ class MeshCoreConnector extends ChangeNotifier {
             pathBytes: message.pathBytes,
           );
           final isNew = _addChannelMessage(channel.index, message);
+          if (isNew && !message.isOutgoing) {
+            unawaited(_translateIncomingChannelMessage(channel.index, message));
+          }
           _maybeIncrementChannelUnread(message, isNew: isNew);
           notifyListeners();
           if (isNew) {
@@ -4718,6 +4969,17 @@ class MeshCoreConnector extends ChangeNotifier {
         );
   }
 
+  /// Public accessor to find a channel by its index.
+  Channel? findChannelByIndex(int index) => _findChannelByIndex(index);
+
+  /// Find a contact by its public key hex string.
+  Contact? findContactByKeyHex(String keyHex) {
+    return _contacts.cast<Contact?>().firstWhere(
+      (c) => c?.publicKeyHex == keyHex,
+      orElse: () => null,
+    );
+  }
+
   void _maybeIncrementChannelUnread(
     ChannelMessage message, {
     required bool isNew,
@@ -5093,6 +5355,11 @@ class MeshCoreConnector extends ChangeNotifier {
           senderKey: message.senderKey,
           senderName: message.senderName,
           text: replyInfo.actualMessage,
+          originalText: message.originalText,
+          translatedText: message.translatedText,
+          translatedLanguageCode: message.translatedLanguageCode,
+          translationStatus: message.translationStatus,
+          translationModelId: message.translationModelId,
           timestamp: message.timestamp,
           isOutgoing: message.isOutgoing,
           status: message.status,

lib/connector/meshcore_uuids.dart

@@ -7,6 +7,9 @@ class MeshCoreUuids {
     "MeshCore-",
     "Whisper-",
     "WisCore-",
+    "Seeed",
+    "Lilygo",
     "HT-",
+    "LowMesh_MC_",
   ];
 }

lib/helpers/gif_helper.dart

@@ -0,0 +1,38 @@
+class GifHelper {
+  /// Parse a known GIF format, which can be any of:
+  /// g:GIFID
+  /// https://media.giphy.com/media/GIFID/giphy.gif
+  /// https://giphy.com/gifs/Optional-title-with-dashes-GIFID
+  ///
+  /// GIFID is a Giphy GIF ID. The https:// is optional (and
+  /// can also be http://). The giphy.com/gifs form can also
+  /// include a trailing slash.
+  ///
+  /// Returns null if text is not a valid GIF format
+  static String? parseGif(String text) {
+    final trimmed = text.trim();
+    final match = RegExp(r'^g:([A-Za-z0-9_-]+)$').firstMatch(trimmed);
+    if (match != null) {
+      return match.group(1);
+    }
+    final directUrlMatch = RegExp(
+      r'^(?:https?:\/\/)?media\.giphy\.com\/media\/([A-Za-z0-9_-]+)\/giphy\.gif$',
+    ).firstMatch(trimmed);
+    if (directUrlMatch != null) {
+      return directUrlMatch.group(1);
+    }
+    // Giphy understands page URLs with just the ID, or any string and a
+    // dash before the ID, and redirects to a page with a dash-separated
+    // title, a dash, and the ID. IDs in this form *probably* can't
+    // contain dashes.
+    final pageMatch = RegExp(
+      r'^(?:https?:\/\/)?giphy\.com\/gifs\/(?:[^/?]*-)?([A-Za-z0-9_]+)\/?$',
+    ).firstMatch(trimmed);
+    return pageMatch?.group(1);
+  }
+
+  /// Encode a GIF in a format that parseGif() can parse.
+  static String encodeGif(String gifId) {
+    return 'g:$gifId';
+  }
+}

lib/helpers/reaction_helper.dart

@@ -109,4 +109,9 @@ class ReactionHelper {
 
     return ReactionInfo(targetHash: match.group(1)!, emoji: emoji);
   }
+
+  /// Encode a reaction message that parseReaction() can parse.
+  static String encodeReaction(String hash, String emojiIndex) {
+    return 'r:$hash:$emojiIndex';
+  }
 }

lib/l10n/app_bg.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Извличане на данни за радиото…",
   "radioStats_settingsTile": "Статистически данни за радиостанции",
   "radioStats_settingsSubtitle": "Ниво на шума, RSSI, SNR и време на пренос",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableTitle": "Активирайте превода",
+  "translation_title": "Превод",
+  "translation_composerTitle": "Преведете преди да изпратите",
+  "translation_enableSubtitle": "Превеждайте входящите съобщения и позволявайте предварително превеждане преди изпращане.",
+  "translation_composerSubtitle": "Контролира началния статус на иконата за превод, създадена от композитора.",
+  "translation_targetLanguage": "Целеви език",
+  "translation_useAppLanguage": "Използвайте езика на приложението",
+  "translation_downloadedModelLabel": "Изтегнат модел",
+  "translation_presetModelLabel": "Предварително конфигуриран модел от Hugging Face",
+  "translation_manualUrlLabel": "URL на ръководството",
+  "translation_downloadModel": "Изтеглете модела",
+  "translation_downloading": "Изтегляне...",
+  "translation_working": "Работа...",
+  "translation_stop": "Спрете",
+  "translation_mergingChunks": "Съединяване на изтеглените части в един файл...",
+  "translation_downloadedModels": "Изтеглени модели",
+  "translation_deleteModel": "Изтриване на модела",
+  "translation_modelDownloaded": "Моделът за превод е изтеглен.",
+  "translation_downloadStopped": "Изтеглянето беше прекъснато.",
+  "translation_downloadFailed": "Не успях да изтегля: {error}",
+  "translation_enterUrlFirst": "Въведете първо URL адрес на модела.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
-  "scanner_linuxPairingHidePin": "Скрий ПИН",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerDisabledHint": "Изпращайте съобщения на оригиналния въведен език.",
+  "translation_translateBeforeSending": "Преведете преди да изпратите",
+  "translation_messageTranslation": "Превод на съобщението",
+  "translation_composerEnabledHint": "Съобщенията ще бъдат преведени, преди да бъдат изпратени.",
+  "translation_translateTo": "Превеждане на {language}",
+  "translation_translationOptions": "Опции за превод",
+  "translation_systemLanguage": "Език на системата",
+  "scanner_linuxPairingPinTitle": "PIN за съвпадение чрез Bluetooth",
+  "scanner_linuxPairingPinPrompt": "Въведете PIN кода за {deviceName} (оставете празно, ако няма такъв).",
+  "scanner_linuxPairingHidePin": "Скриване на PIN кода",
   "scanner_linuxPairingShowPin": "Покажи PIN",
-  "scanner_linuxPairingPinTitle": "PIN код за сдвояване на Bluetooth",
-  "scanner_linuxPairingPinPrompt": "Въведете ПИН за {deviceName} (оставете празно, ако няма).",
   "repeater_cliQuickClockSync": "Синхронизация на часовника",
   "repeater_cliQuickDiscovery": "Открий Съседи"
-}
+}

lib/l10n/app_de.arb

@@ -2035,6 +2035,34 @@
   "radioStats_stripWaiting": "Abrufen von Radiostatus…",
   "radioStats_settingsTile": "Senderinformationen",
   "radioStats_settingsSubtitle": "Rauschpegel, RSSI, Signal-Rausch-Verhältnis (SNR) und Nutzzeit",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_title": "Übersetzung",
+  "translation_composerTitle": "Übersetzen Sie vor dem Versenden",
+  "translation_enableSubtitle": "Nachrichten empfangen und übersetzen sowie die Möglichkeit bieten, Nachrichten vor dem Versenden zu übersetzen.",
+  "translation_enableTitle": "Aktivieren Sie die Übersetzung",
+  "translation_composerSubtitle": "Steuert den Standardzustand des Icons für die Übersetzung des Komponisten.",
+  "translation_targetLanguage": "Zielsprache",
+  "translation_useAppLanguage": "Verwenden Sie die App-Sprache",
+  "translation_downloadedModelLabel": "Heruntergeladenes Modell",
+  "translation_presetModelLabel": "Vordefinierter Hugging Face-Modell",
+  "translation_manualUrlLabel": "URL für das manuelle Modell",
+  "translation_downloadModel": "Modell herunterladen",
+  "translation_downloading": "Herunterladen...",
+  "translation_working": "Arbeiten...",
+  "translation_stop": "Stopp",
+  "translation_mergingChunks": "Zusammenführen der heruntergeladenen Teile in die finale Datei...",
+  "translation_downloadedModels": "Heruntergeladene Modelle",
+  "translation_deleteModel": "Modell löschen",
+  "translation_modelDownloaded": "Übersetzungsmotor heruntergeladen.",
+  "translation_downloadStopped": "Herunterladen abgebrochen.",
+  "translation_downloadFailed": "Download fehlgeschlagen: {error}",
+  "translation_enterUrlFirst": "Geben Sie zunächst die URL eines Modells ein.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2042,10 +2070,24 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_messageTranslation": "Nachricht übersetzen",
+  "translation_composerEnabledHint": "Die Nachrichten werden vor dem Versenden übersetzt.",
+  "translation_translateBeforeSending": "Übersetzen Sie vor dem Versenden",
+  "translation_composerDisabledHint": "Nachrichten in der ursprünglichen, getippten Sprache senden.",
+  "translation_translateTo": "Übersetzen Sie auf {language}",
+  "translation_translationOptions": "Übersetzungsmöglichkeiten",
+  "translation_systemLanguage": "Sprache des Systems",
   "scanner_linuxPairingShowPin": "PIN anzeigen",
   "scanner_linuxPairingHidePin": "PIN ausblenden",
   "scanner_linuxPairingPinTitle": "Bluetooth-Paarungs-PIN",
   "scanner_linuxPairingPinPrompt": "Geben Sie die PIN für {deviceName} ein (leer lassen, falls keine).",
   "repeater_cliQuickClockSync": "Uhr Synchronisieren",
   "repeater_cliQuickDiscovery": "Entdecke Nachbarn"
-}
+}

lib/l10n/app_en.arb

@@ -607,6 +607,15 @@
   "channels_enterHashtag": "Enter hashtag",
   "channels_hashtagHint": "e.g. #team",
   "chat_noMessages": "No messages yet",
+  "chat_sendMessage": "Send message",
+  "chat_sendMessageTo": "Send message to {name}",
+  "@chat_sendMessageTo": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "chat_sendMessageToStart": "Send a message to get started",
   "chat_originalMessageNotFound": "Original message not found",
   "chat_replyingTo": "Replying to {name}",
@@ -2048,6 +2057,35 @@
   "radioStats_stripWaiting": "Fetching radio stats…",
   "radioStats_settingsTile": "Radio stats",
   "radioStats_settingsSubtitle": "Noise floor, RSSI, SNR, and airtime",
+
+  "translation_title": "Translation",
+  "translation_enableTitle": "Enable translation",
+  "translation_enableSubtitle": "Translate incoming messages and allow pre-send translation.",
+  "translation_composerTitle": "Translate before sending",
+  "translation_composerSubtitle": "Controls the default state of the composer translation icon.",
+  "translation_targetLanguage": "Target language",
+  "translation_useAppLanguage": "Use app language",
+  "translation_downloadedModelLabel": "Downloaded model",
+  "translation_presetModelLabel": "Preset Hugging Face model",
+  "translation_manualUrlLabel": "Manual model URL",
+  "translation_downloadModel": "Download model",
+  "translation_downloading": "Downloading...",
+  "translation_working": "Working...",
+  "translation_stop": "Stop",
+  "translation_mergingChunks": "Merging downloaded chunks into final file...",
+  "translation_downloadedModels": "Downloaded models",
+  "translation_deleteModel": "Delete model",
+  "translation_modelDownloaded": "Translation model downloaded.",
+  "translation_downloadStopped": "Download stopped.",
+  "translation_downloadFailed": "Download failed: {error}",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enterUrlFirst": "Enter a model URL first.",
   "scanner_linuxPairingShowPin": "Show PIN",
   "scanner_linuxPairingHidePin": "Hide PIN",
   "scanner_linuxPairingPinTitle": "Bluetooth Pairing PIN",
@@ -2058,5 +2096,19 @@
         "type": "String"
       }
     }
-  }
-}
+  },
+  "translation_messageTranslation": "Message translation",
+  "translation_translateBeforeSending": "Translate before sending",
+  "translation_composerEnabledHint": "Messages will be translated before send.",
+  "translation_composerDisabledHint": "Send messages in the original typed language.",
+  "translation_translateTo": "Translate to {language}",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_translationOptions": "Translation options",
+  "translation_systemLanguage": "System language"
+}

lib/l10n/app_es.arb

@@ -2035,6 +2035,34 @@
   "radioStats_stripWaiting": "Obteniendo estadísticas de la radio…",
   "radioStats_settingsTile": "Estadísticas de radio",
   "radioStats_settingsSubtitle": "Nivel de ruido, RSSI, SNR y tiempo de transmisión",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_title": "Traducción",
+  "translation_enableSubtitle": "Traducir los mensajes entrantes y permitir la traducción previa al envío.",
+  "translation_enableTitle": "Habilitar la traducción",
+  "translation_composerTitle": "Traducir antes de enviar",
+  "translation_composerSubtitle": "Controla el estado predeterminado del icono de traducción del compositor.",
+  "translation_targetLanguage": "Idioma de destino",
+  "translation_useAppLanguage": "Utilizar el idioma de la aplicación",
+  "translation_downloadedModelLabel": "Modelo descargado",
+  "translation_presetModelLabel": "Modelo predefinido de Hugging Face",
+  "translation_manualUrlLabel": "URL del modelo manual",
+  "translation_downloadModel": "Descargar el modelo",
+  "translation_downloading": "Descargando...",
+  "translation_working": "Trabajando...",
+  "translation_stop": "¡Detente!",
+  "translation_mergingChunks": "Combinando los fragmentos descargados en el archivo final...",
+  "translation_downloadedModels": "Modelos descargados",
+  "translation_deleteModel": "Eliminar modelo",
+  "translation_modelDownloaded": "Modelo de traducción descargado.",
+  "translation_downloadStopped": "La descarga se ha detenido.",
+  "translation_downloadFailed": "No se pudo descargar: {error}",
+  "translation_enterUrlFirst": "Primero, introduzca la URL del modelo.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2042,10 +2070,24 @@
       }
     }
   },
-  "scanner_linuxPairingShowPin": "Mostrar PIN",
-  "scanner_linuxPairingPinTitle": "PIN de emparejamiento Bluetooth",
+  "scanner_linuxPairingPinPrompt": "Introduzca el código PIN para {deviceName} (deje en blanco si no hay ninguno).",
+  "scanner_linuxPairingShowPin": "Mostrar código PIN",
+  "scanner_linuxPairingPinTitle": "PIN para emparejar dispositivos Bluetooth",
   "scanner_linuxPairingHidePin": "Ocultar PIN",
-  "scanner_linuxPairingPinPrompt": "Introduzca el PIN para {deviceName} (déjelo en blanco si no hay ninguno).",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerDisabledHint": "Envía mensajes utilizando el lenguaje escrito original.",
+  "translation_composerEnabledHint": "Los mensajes serán traducidos antes de ser enviados.",
+  "translation_messageTranslation": "Traducción del mensaje",
+  "translation_translateBeforeSending": "Traducir antes de enviar",
+  "translation_translateTo": "Traducir a {language}",
+  "translation_translationOptions": "Opciones de traducción",
+  "translation_systemLanguage": "Idioma del sistema",
   "repeater_cliQuickDiscovery": "Descubrir Vecinos",
   "repeater_cliQuickClockSync": "Sincronización del reloj"
-}
+}

lib/l10n/app_fr.arb

@@ -143,8 +143,8 @@
   "settings_frequencyHelper": "300,0 - 2 500,0",
   "settings_frequencyInvalid": "Fréquence invalide (300-2500 MHz)",
   "settings_bandwidth": "Bande passante",
-  "settings_spreadingFactor": "Facteur de répartition",
-  "settings_codingRate": "Taux de codage",
+  "settings_spreadingFactor": "Facteur de répartition (SF)",
+  "settings_codingRate": "Taux de codage (CR)",
   "settings_txPower": "TX Puissance (dBm)",
   "settings_txPowerHelper": "0 - 22",
   "settings_txPowerInvalid": "Puissance TX invalide (0-22 dBm)",
@@ -567,7 +567,7 @@
   "chat_clearPath": "Effacer le chemin",
   "chat_clearPathSubtitle": "Forcer la redécouverte lors de la prochaine envoi",
   "chat_pathCleared": "Le chemin est dégagé. Le prochain message redécouvrira le tracé.",
-  "chat_floodModeSubtitle": "Utiliser le commutateur de routage dans la barre d'application",
+  "chat_floodModeSubtitle": "Désactive l'apprentissage du chemin (à éviter). Utiliser le commutateur de routage dans la barre d'application pour rebasculer en mode auto par la suite.",
   "chat_floodModeEnabled": "Le mode envoi à tout le réseau est activé. Changer via l'icône de routage dans la barre d'outils.",
   "chat_fullPath": "Chemin complet",
   "chat_pathDetailsNotAvailable": "Les détails du chemin ne sont pas encore disponibles. Essayez d'envoyer un message pour rafraîchir.",
@@ -643,7 +643,7 @@
   },
   "map_chat": "Chat",
   "map_repeater": "Répéteur",
-  "map_room": "Salle",
+  "map_room": "Room Server",
   "map_sensor": "Capteur",
   "map_pinDm": "Clé (DM)",
   "map_pinPrivate": "Verrouiller (Privé)",
@@ -682,7 +682,7 @@
   "map_showSharedMarkers": "Afficher les marqueurs partagés",
   "map_lastSeenTime": "Dernière fois vu",
   "map_sharedPin": "Clé partagée",
-  "map_joinRoom": "Rejoindre la salle",
+  "map_joinRoom": "Rejoindre le room server",
   "map_manageRepeater": "Gérer le répéteur",
   "mapCache_title": "Cache de Carte Hors Ligne",
   "mapCache_selectAreaFirst": "Sélectionner une zone pour la mise en cache en premier",
@@ -865,7 +865,7 @@
   "path_labelHexPrefixes": "Préfixes hexadécimaux",
   "path_helperMaxHops": "Max 64 sauts. Chaque préfixe fait 2 caractères hexadécimaux (1 octet)",
   "path_selectFromContacts": "Sélectionner à partir des contacts :",
-  "path_noRepeatersFound": "Aucun répéteur ou serveur de salle n'a été trouvé.",
+  "path_noRepeatersFound": "Aucun répéteur ou room server n'a été trouvé.",
   "path_customPathsRequire": "Les chemins personnalisés nécessitent des sauts intermédiaires qui peuvent transmettre des messages.",
   "path_invalidHexPrefixes": "Préfixes hexadécimaux invalides : {prefixes}",
   "@path_invalidHexPrefixes": {
@@ -996,15 +996,15 @@
   "repeater_txPower": "TX Puissance",
   "repeater_txPowerHelper": "1-30 dBm",
   "repeater_bandwidth": "Bande passante",
-  "repeater_spreadingFactor": "Facteur de répartition",
-  "repeater_codingRate": "Taux de codage",
+  "repeater_spreadingFactor": "Facteur de répartition (SF)",
+  "repeater_codingRate": "Taux de codage (CR)",
   "repeater_locationSettings": "Paramètres de localisation",
   "repeater_latitude": "Latitude",
   "repeater_latitudeHelper": "Degrés décimaux (par exemple, 37.7749)",
   "repeater_longitude": "Longitude",
   "repeater_longitudeHelper": "Degrés décimaux (par exemple, -122,4194)",
   "repeater_features": "Fonctionnalités",
-  "repeater_packetForwarding": "Transfert de paquets",
+  "repeater_packetForwarding": "Mode répéteur",
   "repeater_packetForwardingSubtitle": "Activer le répéteur pour transmettre des paquets",
   "repeater_guestAccess": "Accès Invité",
   "repeater_guestAccessSubtitle": "Autoriser l'accès invité en lecture seule",
@@ -1377,7 +1377,7 @@
   "channels_joinPublicChannelDesc": "Tout le monde peut rejoindre ce canal.",
   "channels_joinHashtagChannel": "Rejoindre un Canal Hashtag",
   "channels_joinHashtagChannelDesc": "N'importe qui peut rejoindre les canaux #hashtag.",
-  "channels_scanQrCode": "Scanner un code QR",
+  "channels_scanQrCode": "Scanner un QR code",
   "channels_scanQrCodeComingSoon": "Bientôt disponible",
   "channels_enterHashtag": "Entrez le hashtag",
   "channels_hashtagHint": "ex. #equipe",
@@ -1466,8 +1466,8 @@
   "community_join": "Rejoindre",
   "community_joinTitle": "Rejoindre la communauté",
   "community_joinConfirmation": "Souhaitez-vous rejoindre la communauté \"{name}\" ?",
-  "community_scanQr": "Scanner la communauté QR",
-  "community_scanInstructions": "Pointez l'appareil photo vers un code QR communautaire.",
+  "community_scanQr": "Scanner un QR code de communauté",
+  "community_scanInstructions": "Pointez l'appareil photo vers un QR code de communauté.",
   "community_showQr": "Afficher le QR Code",
   "community_publicChannel": "Communauté Publique",
   "community_hashtagChannel": "Hashtag Communauté",
@@ -1478,13 +1478,13 @@
   "community_qrTitle": "Partager Communauté",
   "community_qrInstructions": "Scanner ce QR code pour rejoindre {name}",
   "community_hashtagPrivacyHint": "Les canaux hashtag de la communauté ne sont accessibles qu'aux membres de la communauté",
-  "community_invalidQrCode": "Code QR de communauté non valide",
+  "community_invalidQrCode": "QR code de communauté non valide",
   "community_alreadyMember": "Déjà membre",
   "community_alreadyMemberMessage": "Vous êtes déjà membre de \"{name}\".",
   "community_addPublicChannel": "Ajouter un Canal Public de la Communauté",
   "community_addPublicChannelHint": "Ajouter automatiquement le canal public pour cette communauté",
   "community_noCommunities": "Aucun groupe n'a été rejoint pour le moment.",
-  "community_scanOrCreate": "Scanner un code QR ou créer une communauté pour commencer",
+  "community_scanOrCreate": "Scanner un QR code ou créer une communauté pour commencer",
   "community_manageCommunities": "Gérer les Communautés",
   "community_delete": "Quitter la communauté",
   "community_deleteConfirm": "Quitter \"{name}\" ?",
@@ -1534,10 +1534,10 @@
     }
   },
   "community_regenerateSecret": "Régénérer le secret",
-  "community_regenerateSecretConfirm": "Régénérer la clé secrète pour \"{name}\" ? Tous les membres devront scanner le nouveau code QR pour continuer à communiquer.",
+  "community_regenerateSecretConfirm": "Régénérer la clé secrète pour \"{name}\" ? Tous les membres devront scanner le nouveau QR code pour continuer à communiquer.",
   "community_regenerate": "Régénérer",
   "community_secretRegenerated": "Mot de passe secret régénéré pour \"{name}\"",
-  "community_scanToUpdateSecret": "Scanner le nouveau code QR pour mettre à jour le mot de passe pour \"{name}\"",
+  "community_scanToUpdateSecret": "Scanner le nouveau QR code pour mettre à jour le mot de passe pour \"{name}\"",
   "community_updateSecret": "Mettre à jour le secret",
   "community_secretUpdated": "Modification secrète mise à jour pour \"{name}\"",
   "@contacts_pathTraceTo": {
@@ -1554,11 +1554,11 @@
   "contacts_pathTrace": "Traçage de chemin",
   "contacts_repeaterPathTrace": "Tracer le chemin vers le répéteur",
   "contacts_repeaterPing": "Pinguer le répéteur",
-  "contacts_roomPathTrace": "Traçage du chemin vers le serveur de la salle",
+  "contacts_roomPathTrace": "Traçage du chemin vers le room server",
   "contacts_chatTraceRoute": "Tracer le chemin",
   "contacts_pathTraceTo": "Tracer l'itinéraire vers {name}",
   "contacts_ping": "Ping",
-  "contacts_roomPing": "Pinguer le serveur de la salle",
+  "contacts_roomPing": "Pinguer le room server",
   "contacts_invalidAdvertFormat": "Données de contact non valides",
   "appSettings_languageUk": "Ukrainien",
   "appSettings_languageRu": "Russe",
@@ -1583,12 +1583,12 @@
   "notification_newNodesCount": "{count} {count, plural, =1{nouveau nœud} other{nouveaux nœuds}}",
   "notification_newTypeDiscovered": "Nouveau {contactType} découvert",
   "notification_receivedNewMessage": "Nouveau message reçu",
-  "settings_gpxExportRepeaters": "Exporter les répéteurs / serveur de salle au format GPX",
+  "settings_gpxExportRepeaters": "Exporter les répéteurs / room servers au format GPX",
   "settings_gpxExportRepeatersSubtitle": "Exporte les répéteurs / roomserver avec une localisation vers un fichier GPX.",
   "settings_gpxExportNoContacts": "Aucun contact à exporter.",
   "settings_gpxExportNotAvailable": "Non pris en charge sur votre appareil/Système d'exploitation",
   "settings_gpxExportError": "Une erreur s'est produite lors de l'exportation.",
-  "settings_gpxExportRepeatersRoom": "Emplacements des serveurs de répéteur et de salle",
+  "settings_gpxExportRepeatersRoom": "Emplacements des répéteurs et room servers",
   "settings_gpxExportContacts": "Exporter les compagnons au format GPX",
   "settings_gpxExportAll": "Exporter tous les contacts au format GPX",
   "settings_gpxExportAllSubtitle": "Exporte tous les contacts avec une localisation vers un fichier GPX.",
@@ -1800,15 +1800,15 @@
   "contacts_unread": "Non lu",
   "contacts_searchFavorites": "Rechercher {number}{str} Favoris...",
   "contacts_searchUsers": "Rechercher {number}{str} utilisateurs...",
-  "contacts_searchRoomServers": "Rechercher {number}{str} serveurs de salle...",
+  "contacts_searchRoomServers": "Rechercher {number}{str} room server...",
   "contacts_searchRepeaters": "Rechercher {number}{str} Répéteurs...",
   "contacts_searchContactsNoNumber": "Rechercher des contacts...",
   "settings_contactSettings": "Paramètres de contact",
   "settings_contactSettingsSubtitle": "Paramètres pour l'ajout de contacts",
   "contactsSettings_autoAddRepeatersTitle": "Ajouter automatiquement les répéteurs",
   "contactsSettings_autoAddRepeatersSubtitle": "Autoriser le compagnon à ajouter automatiquement les répéteurs découverts",
-  "contactsSettings_autoAddRoomServersTitle": "Ajouter automatiquement les serveurs de salle",
-  "contactsSettings_autoAddRoomServersSubtitle": "Autoriser le compagnon à ajouter automatiquement les serveurs de salles découverts",
+  "contactsSettings_autoAddRoomServersTitle": "Ajouter automatiquement les room servers",
+  "contactsSettings_autoAddRoomServersSubtitle": "Autoriser le compagnon à ajouter automatiquement les room servers découverts",
   "contactsSettings_otherTitle": "Autres paramètres liés aux contacts",
   "contactsSettings_title": "Paramètres des contacts",
   "contactsSettings_autoAddUsersTitle": "Ajouter automatiquement les utilisateurs",
@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Récupération des statistiques de la radio…",
   "radioStats_settingsTile": "Statistiques de radio",
   "radioStats_settingsSubtitle": "Niveau de bruit, RSSI, rapport signal/bruit (SNR) et temps d'antenne",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerTitle": "Traduire avant d'envoyer",
+  "translation_enableTitle": "Activer la traduction",
+  "translation_title": "Traduction",
+  "translation_enableSubtitle": "Traduire les messages entrants et permettre la traduction avant l'envoi.",
+  "translation_composerSubtitle": "Contrôle l'état par défaut de l'icône de traduction du composant.",
+  "translation_targetLanguage": "Langue cible",
+  "translation_useAppLanguage": "Utiliser la langue de l'application",
+  "translation_downloadedModelLabel": "Modèle téléchargé",
+  "translation_presetModelLabel": "Modèle Hugging Face préconfiguré",
+  "translation_manualUrlLabel": "URL du modèle manuel",
+  "translation_downloadModel": "Télécharger le modèle",
+  "translation_downloading": "Téléchargement...",
+  "translation_working": "Au travail...",
+  "translation_stop": "Arrêtez",
+  "translation_mergingChunks": "Fusion des fragments téléchargés dans le fichier final...",
+  "translation_downloadedModels": "Modèles téléchargés",
+  "translation_deleteModel": "Supprimer le modèle",
+  "translation_modelDownloaded": "Modèle de traduction téléchargé.",
+  "translation_downloadStopped": "Le téléchargement a été interrompu.",
+  "translation_downloadFailed": "Échec du téléchargement : {error}",
+  "translation_enterUrlFirst": "Entrez d'abord l'URL du modèle.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
-  "scanner_linuxPairingShowPin": "Afficher le code PIN",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerEnabledHint": "Les messages seront traduits avant d'être envoyés.",
+  "translation_translateBeforeSending": "Traduire avant d'envoyer",
+  "translation_composerDisabledHint": "Envoyez des messages dans la langue originale, telle que vous l'avez tapée.",
+  "translation_messageTranslation": "Traduction du message",
+  "translation_translateTo": "Traduire en {language}",
+  "translation_translationOptions": "Options de traduction",
+  "translation_systemLanguage": "Langue du système",
+  "scanner_linuxPairingPinTitle": "Code PIN pour la connexion Bluetooth",
   "scanner_linuxPairingHidePin": "Masquer le code PIN",
-  "scanner_linuxPairingPinTitle": "Code PIN d’appairage Bluetooth",
-  "scanner_linuxPairingPinPrompt": "Entrez le code PIN pour {deviceName} (laissez vide si aucun).",
+  "scanner_linuxPairingPinPrompt": "Entrez le code PIN pour {deviceName} (laissez vide si nécessaire).",
+  "scanner_linuxPairingShowPin": "Afficher le code PIN",
   "repeater_cliQuickClockSync": "Synchronisation de l'horloge",
   "repeater_cliQuickDiscovery": "Découvrir les voisins"
-}
+}

lib/l10n/app_hu.arb

@@ -2045,6 +2045,34 @@
   "contact_teleEnvSubtitle": "Engedje meg az érzékelő adatok megosztását",
   "map_showOverlaps": "Az ismétlő kulcsok ütköznek",
   "map_runTraceWithReturnPath": "Visszaforduljon az eredeti úton.",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_title": "Fordítás",
+  "translation_enableTitle": "Engedje meg a fordítást",
+  "translation_enableSubtitle": "Fordítsa az érkező üzeneteket, és lehetővé tegye a küldés előtti fordítást.",
+  "translation_composerTitle": "Fordítsa el, mielőtt elküldi",
+  "translation_composerSubtitle": "Ellenőrzi a zeneszerző fordítási ikon alapértékét.",
+  "translation_targetLanguage": "Célnyelv",
+  "translation_useAppLanguage": "Használja az alkalmazás nyelvének beállítását.",
+  "translation_downloadedModelLabel": "Letöltött modell",
+  "translation_presetModelLabel": "Előre definiált Hugging Face-modell",
+  "translation_manualUrlLabel": "Manuális modell URL",
+  "translation_downloadModel": "Letöltés",
+  "translation_downloading": "Letöltés...",
+  "translation_working": "Munkában vagyok...",
+  "translation_stop": "Halt",
+  "translation_mergingChunks": "A letöltött részek összeállítása a végleges fájlba...",
+  "translation_downloadedModels": "Letöltött modelok",
+  "translation_deleteModel": "Törölje a modellt",
+  "translation_modelDownloaded": "Fordítási modell letöltve.",
+  "translation_downloadStopped": "A letöltés leállt.",
+  "translation_downloadFailed": "Letöltés sikertelen: {error}",
+  "translation_enterUrlFirst": "Addon először egy modell URL-t.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2052,10 +2080,25 @@
       }
     }
   },
-  "scanner_linuxPairingHidePin": "PIN elrejtése",
-  "scanner_linuxPairingShowPin": "PIN megjelenítése",
+  "scanner_linuxPairingShowPin": "Megjelenítse a PIN-kódot",
+  "scanner_linuxPairingPinPrompt": "Adja meg a PIN kódot a {deviceName} számára (hagyja üresen, ha nincs).",
+  "scanner_linuxPairingHidePin": "Rejtse el a PIN-kódot",
   "scanner_linuxPairingPinTitle": "Bluetooth párosítási PIN",
-  "scanner_linuxPairingPinPrompt": "Adja meg a(z) {deviceName} PIN-kódját (hagyja üresen, ha nincs).",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_translateBeforeSending": "Fordítsa el, mielőtt elküldi",
+  "translation_composerEnabledHint": "A üzenetek fordítását a küldés előtt elvégezzük.",
+  "translation_messageTranslation": "Üzenet fordítása",
+  "translation_composerDisabledHint": "Küldj üzeneteket az eredeti, nyomtatott nyelven.",
+  "translation_translateTo": "Fordítás {language}-ra",
+  "translation_translationOptions": "Fordítási lehetőségek",
+  "translation_systemLanguage": "Rendszer nyelvé",
+ "scanner_linuxPairingPinPrompt": "Adja meg a(z) {deviceName} PIN-kódját (hagyja üresen, ha nincs).",
   "repeater_cliQuickClockSync": "Óra szinkronizálás",
   "repeater_cliQuickDiscovery": "Fedezd fel a szomszédokat"
 }

lib/l10n/app_it.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Recupero delle statistiche radio…",
   "radioStats_settingsTile": "Statistiche radio",
   "radioStats_settingsSubtitle": "Livello di rumore, RSSI, rapporto segnale/rumore (SNR) e tempo di trasmissione",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerTitle": "Tradurre prima di inviare",
+  "translation_enableSubtitle": "Tradurre i messaggi in arrivo e consentire la traduzione preventiva prima dell'invio.",
+  "translation_enableTitle": "Abilitare la traduzione",
+  "translation_title": "Traduzione",
+  "translation_composerSubtitle": "Controlla lo stato predefinito dell'icona di traduzione del compositore.",
+  "translation_targetLanguage": "Lingua di destinazione",
+  "translation_useAppLanguage": "Utilizza la lingua dell'app",
+  "translation_downloadedModelLabel": "Modello scaricato",
+  "translation_presetModelLabel": "Modello predefinito di Hugging Face",
+  "translation_manualUrlLabel": "URL del modello manuale",
+  "translation_downloadModel": "Scarica il modello",
+  "translation_downloading": "Inizio download...",
+  "translation_working": "Lavoro...",
+  "translation_stop": "Smetta",
+  "translation_downloadedModels": "Modelli scaricati",
+  "translation_mergingChunks": "Unione dei frammenti scaricati in un unico file...",
+  "translation_deleteModel": "Elimina modello",
+  "translation_modelDownloaded": "Modello di traduzione scaricato.",
+  "translation_downloadStopped": "Il download è stato interrotto.",
+  "translation_downloadFailed": "Download fallito: {error}",
+  "translation_enterUrlFirst": "Inserite innanzitutto l'URL del modello.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_messageTranslation": "Traduzione del messaggio",
+  "translation_translateBeforeSending": "Tradurre prima di inviare",
+  "translation_composerDisabledHint": "Invia messaggi utilizzando la lingua originale, scritta.",
+  "translation_composerEnabledHint": "I messaggi verranno tradotti prima di essere inviati.",
+  "translation_translateTo": "Tradurre in {language}",
+  "translation_translationOptions": "Opzioni di traduzione",
+  "translation_systemLanguage": "Lingua del sistema",
+  "scanner_linuxPairingPinPrompt": "Inserire il codice PIN per {deviceName} (lasciare vuoto se non presente).",
   "scanner_linuxPairingShowPin": "Mostra PIN",
-  "scanner_linuxPairingHidePin": "Nascondi PIN",
-  "scanner_linuxPairingPinTitle": "PIN di associazione Bluetooth",
-  "scanner_linuxPairingPinPrompt": "Inserisci il PIN per {deviceName} (lascia vuoto se non ce n'è).",
+  "scanner_linuxPairingPinTitle": "PIN per l'accoppiamento Bluetooth",
+  "scanner_linuxPairingHidePin": "Nascondi il PIN",
   "repeater_cliQuickClockSync": "Sincronizzazione dell'orologio",
   "repeater_cliQuickDiscovery": "Scopri i Vicini"
-}
+}

lib/l10n/app_ja.arb

@@ -2045,6 +2045,34 @@
   "contact_teleEnvSubtitle": "環境センサーのデータを共有することを許可する",
   "map_showOverlaps": "リピーターキーの重複",
   "map_runTraceWithReturnPath": "元の経路に戻る。",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableSubtitle": "受信メッセージを翻訳し、送信前に翻訳を適用できるようにする。",
+  "translation_title": "翻訳",
+  "translation_composerTitle": "送信する前に翻訳する",
+  "translation_enableTitle": "翻訳機能を有効にする",
+  "translation_composerSubtitle": "作曲家翻訳アイコンのデフォルト状態を制御する。",
+  "translation_targetLanguage": "翻訳対象言語",
+  "translation_useAppLanguage": "アプリの言語設定",
+  "translation_downloadedModelLabel": "ダウンロードしたモデル",
+  "translation_presetModelLabel": "あらかじめ設定されたHugging Faceモデル",
+  "translation_manualUrlLabel": "マニュアルモデルのURL",
+  "translation_downloadModel": "モデルのダウンロード",
+  "translation_downloading": "ダウンロード中...",
+  "translation_working": "業務中…",
+  "translation_stop": "停止",
+  "translation_mergingChunks": "ダウンロードしたファイルを最終ファイルに結合中...",
+  "translation_downloadedModels": "ダウンロードされたモデル",
+  "translation_deleteModel": "モデルを削除",
+  "translation_modelDownloaded": "翻訳モデルのダウンロードが完了しました。",
+  "translation_downloadStopped": "ダウンロードが中断されました。",
+  "translation_downloadFailed": "ダウンロードに失敗しました：{error}",
+  "translation_enterUrlFirst": "まず、モデルのURLを入力してください。",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2052,6 +2080,20 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_translateBeforeSending": "送信する前に翻訳する",
+  "translation_composerEnabledHint": "メッセージは送信前に翻訳されます。",
+  "translation_messageTranslation": "メッセージの翻訳",
+  "translation_composerDisabledHint": "元のタイプされた言語でメッセージを送信してください。",
+  "translation_translateTo": "{language} への翻訳",
+  "translation_translationOptions": "翻訳の選択肢",
+  "translation_systemLanguage": "システム言語",
   "scanner_linuxPairingShowPin": "PINを表示",
   "scanner_linuxPairingHidePin": "PINを非表示",
   "scanner_linuxPairingPinTitle": "Bluetooth ペアリング PIN",

lib/l10n/app_ko.arb

@@ -2045,6 +2045,34 @@
   "contact_teleEnvSubtitle": "환경 센서 데이터를 공유하도록 허용",
   "map_showOverlaps": "반복 키 중복",
   "map_runTraceWithReturnPath": "원래 경로로 돌아가세요.",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableSubtitle": "입력 메시지를 번역하고, 미리 번역 기능을 제공합니다.",
+  "translation_title": "번역",
+  "translation_enableTitle": "번역 기능 활성화",
+  "translation_composerTitle": "보내기 전에 번역",
+  "translation_composerSubtitle": "컴포저 번역 아이콘의 기본 상태를 제어합니다.",
+  "translation_targetLanguage": "목표 언어",
+  "translation_useAppLanguage": "앱 언어 사용",
+  "translation_downloadedModelLabel": "다운로드한 모델",
+  "translation_presetModelLabel": "사전에 설정된 Hugging Face 모델",
+  "translation_manualUrlLabel": "수동 모델 URL",
+  "translation_downloadModel": "모델 다운로드",
+  "translation_downloading": "다운로드 중...",
+  "translation_working": "업무 중...",
+  "translation_stop": "멈춰",
+  "translation_mergingChunks": "다운로드한 파일 조각들을 최종 파일로 병합 중...",
+  "translation_downloadedModels": "다운로드한 모델",
+  "translation_deleteModel": "모델 삭제",
+  "translation_modelDownloaded": "번역 모델이 다운로드되었습니다.",
+  "translation_downloadStopped": "다운로드 중단됨.",
+  "translation_downloadFailed": "다운로드 실패: {error}",
+  "translation_enterUrlFirst": "먼저 모델 URL을 입력하세요.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2052,10 +2080,24 @@
       }
     }
   },
-  "scanner_linuxPairingShowPin": "PIN 표시",
   "scanner_linuxPairingPinTitle": "블루투스 페어링 PIN",
   "scanner_linuxPairingHidePin": "PIN 숨기기",
-  "scanner_linuxPairingPinPrompt": "{deviceName}에 대한 PIN을 입력하세요 (없으면 비워두세요).",
+  "scanner_linuxPairingShowPin": "PIN 보기",
+  "scanner_linuxPairingPinPrompt": "{deviceName}의 PIN을 입력하세요 (해당하는 경우에만 입력).",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerEnabledHint": "메시지는 전송하기 전에 번역될 것입니다.",
+  "translation_translateBeforeSending": "보내기 전에 번역",
+  "translation_messageTranslation": "메시지 번역",
+  "translation_composerDisabledHint": "원래 작성된 언어로 메시지를 보내세요.",
+  "translation_translateTo": "{language} 번역",
+  "translation_translationOptions": "번역 옵션",
+  "translation_systemLanguage": "시스템 언어",
   "repeater_cliQuickClockSync": "시계 동기화",
   "repeater_cliQuickDiscovery": "이웃 발견하기"
 }

lib/l10n/app_localizations.dart

@@ -2296,6 +2296,18 @@ abstract class AppLocalizations {
   /// **'No messages yet'**
   String get chat_noMessages;
 
+  /// No description provided for @chat_sendMessage.
+  ///
+  /// In en, this message translates to:
+  /// **'Send message'**
+  String get chat_sendMessage;
+
+  /// No description provided for @chat_sendMessageTo.
+  ///
+  /// In en, this message translates to:
+  /// **'Send a message to {contactName}'**
+  String chat_sendMessageTo(String contactName);
+
   /// No description provided for @chat_sendMessageToStart.
   ///
   /// In en, this message translates to:
@@ -2326,12 +2338,6 @@ abstract class AppLocalizations {
   /// **'Location'**
   String get chat_location;
 
-  /// No description provided for @chat_sendMessageTo.
-  ///
-  /// In en, this message translates to:
-  /// **'Send a message to {contactName}'**
-  String chat_sendMessageTo(String contactName);
-
   /// No description provided for @chat_typeMessage.
   ///
   /// In en, this message translates to:
@@ -6161,6 +6167,132 @@ abstract class AppLocalizations {
   /// **'Noise floor, RSSI, SNR, and airtime'**
   String get radioStats_settingsSubtitle;
 
+  /// No description provided for @translation_title.
+  ///
+  /// In en, this message translates to:
+  /// **'Translation'**
+  String get translation_title;
+
+  /// No description provided for @translation_enableTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Enable translation'**
+  String get translation_enableTitle;
+
+  /// No description provided for @translation_enableSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Translate incoming messages and allow pre-send translation.'**
+  String get translation_enableSubtitle;
+
+  /// No description provided for @translation_composerTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Translate before sending'**
+  String get translation_composerTitle;
+
+  /// No description provided for @translation_composerSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Controls the default state of the composer translation icon.'**
+  String get translation_composerSubtitle;
+
+  /// No description provided for @translation_targetLanguage.
+  ///
+  /// In en, this message translates to:
+  /// **'Target language'**
+  String get translation_targetLanguage;
+
+  /// No description provided for @translation_useAppLanguage.
+  ///
+  /// In en, this message translates to:
+  /// **'Use app language'**
+  String get translation_useAppLanguage;
+
+  /// No description provided for @translation_downloadedModelLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Downloaded model'**
+  String get translation_downloadedModelLabel;
+
+  /// No description provided for @translation_presetModelLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Preset Hugging Face model'**
+  String get translation_presetModelLabel;
+
+  /// No description provided for @translation_manualUrlLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Manual model URL'**
+  String get translation_manualUrlLabel;
+
+  /// No description provided for @translation_downloadModel.
+  ///
+  /// In en, this message translates to:
+  /// **'Download model'**
+  String get translation_downloadModel;
+
+  /// No description provided for @translation_downloading.
+  ///
+  /// In en, this message translates to:
+  /// **'Downloading...'**
+  String get translation_downloading;
+
+  /// No description provided for @translation_working.
+  ///
+  /// In en, this message translates to:
+  /// **'Working...'**
+  String get translation_working;
+
+  /// No description provided for @translation_stop.
+  ///
+  /// In en, this message translates to:
+  /// **'Stop'**
+  String get translation_stop;
+
+  /// No description provided for @translation_mergingChunks.
+  ///
+  /// In en, this message translates to:
+  /// **'Merging downloaded chunks into final file...'**
+  String get translation_mergingChunks;
+
+  /// No description provided for @translation_downloadedModels.
+  ///
+  /// In en, this message translates to:
+  /// **'Downloaded models'**
+  String get translation_downloadedModels;
+
+  /// No description provided for @translation_deleteModel.
+  ///
+  /// In en, this message translates to:
+  /// **'Delete model'**
+  String get translation_deleteModel;
+
+  /// No description provided for @translation_modelDownloaded.
+  ///
+  /// In en, this message translates to:
+  /// **'Translation model downloaded.'**
+  String get translation_modelDownloaded;
+
+  /// No description provided for @translation_downloadStopped.
+  ///
+  /// In en, this message translates to:
+  /// **'Download stopped.'**
+  String get translation_downloadStopped;
+
+  /// No description provided for @translation_downloadFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Download failed: {error}'**
+  String translation_downloadFailed(String error);
+
+  /// No description provided for @translation_enterUrlFirst.
+  ///
+  /// In en, this message translates to:
+  /// **'Enter a model URL first.'**
+  String get translation_enterUrlFirst;
+
   /// No description provided for @scanner_linuxPairingShowPin.
   ///
   /// In en, this message translates to:
@@ -6184,6 +6316,48 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Enter PIN for {deviceName} (leave blank if none).'**
   String scanner_linuxPairingPinPrompt(String deviceName);
+
+  /// No description provided for @translation_messageTranslation.
+  ///
+  /// In en, this message translates to:
+  /// **'Message translation'**
+  String get translation_messageTranslation;
+
+  /// No description provided for @translation_translateBeforeSending.
+  ///
+  /// In en, this message translates to:
+  /// **'Translate before sending'**
+  String get translation_translateBeforeSending;
+
+  /// No description provided for @translation_composerEnabledHint.
+  ///
+  /// In en, this message translates to:
+  /// **'Messages will be translated before send.'**
+  String get translation_composerEnabledHint;
+
+  /// No description provided for @translation_composerDisabledHint.
+  ///
+  /// In en, this message translates to:
+  /// **'Send messages in the original typed language.'**
+  String get translation_composerDisabledHint;
+
+  /// No description provided for @translation_translateTo.
+  ///
+  /// In en, this message translates to:
+  /// **'Translate to {language}'**
+  String translation_translateTo(String language);
+
+  /// No description provided for @translation_translationOptions.
+  ///
+  /// In en, this message translates to:
+  /// **'Translation options'**
+  String get translation_translationOptions;
+
+  /// No description provided for @translation_systemLanguage.
+  ///
+  /// In en, this message translates to:
+  /// **'System language'**
+  String get translation_systemLanguage;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_bg.dart

@@ -1239,6 +1239,14 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get chat_noMessages => 'Няма съобщения.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Изпрати съобщение на $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Изпрати съобщение, за да започнеш.';
 
@@ -1258,11 +1266,6 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get chat_location => 'Местоположение';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Изпрати съобщение на $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Въведете съобщение...';
 
@@ -3574,18 +3577,112 @@ class AppLocalizationsBg extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Ниво на шума, RSSI, SNR и време на пренос';
 
+  @override
+  String get translation_title => 'Превод';
+
+  @override
+  String get translation_enableTitle => 'Активирайте превода';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Превеждайте входящите съобщения и позволявайте предварително превеждане преди изпращане.';
+
+  @override
+  String get translation_composerTitle => 'Преведете преди да изпратите';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Контролира началния статус на иконата за превод, създадена от композитора.';
+
+  @override
+  String get translation_targetLanguage => 'Целеви език';
+
+  @override
+  String get translation_useAppLanguage => 'Използвайте езика на приложението';
+
+  @override
+  String get translation_downloadedModelLabel => 'Изтегнат модел';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Предварително конфигуриран модел от Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'URL на ръководството';
+
+  @override
+  String get translation_downloadModel => 'Изтеглете модела';
+
+  @override
+  String get translation_downloading => 'Изтегляне...';
+
+  @override
+  String get translation_working => 'Работа...';
+
+  @override
+  String get translation_stop => 'Спрете';
+
+  @override
+  String get translation_mergingChunks =>
+      'Съединяване на изтеглените части в един файл...';
+
+  @override
+  String get translation_downloadedModels => 'Изтеглени модели';
+
+  @override
+  String get translation_deleteModel => 'Изтриване на модела';
+
+  @override
+  String get translation_modelDownloaded => 'Моделът за превод е изтеглен.';
+
+  @override
+  String get translation_downloadStopped => 'Изтеглянето беше прекъснато.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Не успях да изтегля: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Въведете първо URL адрес на модела.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Покажи PIN';
 
   @override
-  String get scanner_linuxPairingHidePin => 'Скрий ПИН';
+  String get scanner_linuxPairingHidePin => 'Скриване на PIN кода';
 
   @override
-  String get scanner_linuxPairingPinTitle =>
-      'PIN код за сдвояване на Bluetooth';
+  String get scanner_linuxPairingPinTitle => 'PIN за съвпадение чрез Bluetooth';
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return 'Въведете ПИН за $deviceName (оставете празно, ако няма).';
+    return 'Въведете PIN кода за $deviceName (оставете празно, ако няма такъв).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Превод на съобщението';
+
+  @override
+  String get translation_translateBeforeSending =>
+      'Преведете преди да изпратите';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Съобщенията ще бъдат преведени, преди да бъдат изпратени.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Изпращайте съобщения на оригиналния въведен език.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Превеждане на $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Опции за превод';
+
+  @override
+  String get translation_systemLanguage => 'Език на системата';
 }

lib/l10n/app_localizations_de.dart

@@ -1238,6 +1238,14 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get chat_noMessages => 'Noch keine Nachrichten.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Sende eine Nachricht an $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Eine Nachricht senden, um anzufangen.';
 
@@ -1257,11 +1265,6 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get chat_location => 'Ort';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Sende eine Nachricht an $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Eine Nachricht eingeben...';
 
@@ -3583,6 +3586,77 @@ class AppLocalizationsDe extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Rauschpegel, RSSI, Signal-Rausch-Verhältnis (SNR) und Nutzzeit';
 
+  @override
+  String get translation_title => 'Übersetzung';
+
+  @override
+  String get translation_enableTitle => 'Aktivieren Sie die Übersetzung';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Nachrichten empfangen und übersetzen sowie die Möglichkeit bieten, Nachrichten vor dem Versenden zu übersetzen.';
+
+  @override
+  String get translation_composerTitle => 'Übersetzen Sie vor dem Versenden';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Steuert den Standardzustand des Icons für die Übersetzung des Komponisten.';
+
+  @override
+  String get translation_targetLanguage => 'Zielsprache';
+
+  @override
+  String get translation_useAppLanguage => 'Verwenden Sie die App-Sprache';
+
+  @override
+  String get translation_downloadedModelLabel => 'Heruntergeladenes Modell';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Vordefinierter Hugging Face-Modell';
+
+  @override
+  String get translation_manualUrlLabel => 'URL für das manuelle Modell';
+
+  @override
+  String get translation_downloadModel => 'Modell herunterladen';
+
+  @override
+  String get translation_downloading => 'Herunterladen...';
+
+  @override
+  String get translation_working => 'Arbeiten...';
+
+  @override
+  String get translation_stop => 'Stopp';
+
+  @override
+  String get translation_mergingChunks =>
+      'Zusammenführen der heruntergeladenen Teile in die finale Datei...';
+
+  @override
+  String get translation_downloadedModels => 'Heruntergeladene Modelle';
+
+  @override
+  String get translation_deleteModel => 'Modell löschen';
+
+  @override
+  String get translation_modelDownloaded =>
+      'Übersetzungsmotor heruntergeladen.';
+
+  @override
+  String get translation_downloadStopped => 'Herunterladen abgebrochen.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Download fehlgeschlagen: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst =>
+      'Geben Sie zunächst die URL eines Modells ein.';
+
   @override
   String get scanner_linuxPairingShowPin => 'PIN anzeigen';
 
@@ -3596,4 +3670,30 @@ class AppLocalizationsDe extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Geben Sie die PIN für $deviceName ein (leer lassen, falls keine).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Nachricht übersetzen';
+
+  @override
+  String get translation_translateBeforeSending =>
+      'Übersetzen Sie vor dem Versenden';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Die Nachrichten werden vor dem Versenden übersetzt.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Nachrichten in der ursprünglichen, getippten Sprache senden.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Übersetzen Sie auf $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Übersetzungsmöglichkeiten';
+
+  @override
+  String get translation_systemLanguage => 'Sprache des Systems';
 }

lib/l10n/app_localizations_en.dart

@@ -1213,6 +1213,14 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get chat_noMessages => 'No messages yet';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Send a message to $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Send a message to get started';
 
@@ -1232,11 +1240,6 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get chat_location => 'Location';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Send a message to $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Type a message...';
 
@@ -3508,6 +3511,74 @@ class AppLocalizationsEn extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Noise floor, RSSI, SNR, and airtime';
 
+  @override
+  String get translation_title => 'Translation';
+
+  @override
+  String get translation_enableTitle => 'Enable translation';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Translate incoming messages and allow pre-send translation.';
+
+  @override
+  String get translation_composerTitle => 'Translate before sending';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Controls the default state of the composer translation icon.';
+
+  @override
+  String get translation_targetLanguage => 'Target language';
+
+  @override
+  String get translation_useAppLanguage => 'Use app language';
+
+  @override
+  String get translation_downloadedModelLabel => 'Downloaded model';
+
+  @override
+  String get translation_presetModelLabel => 'Preset Hugging Face model';
+
+  @override
+  String get translation_manualUrlLabel => 'Manual model URL';
+
+  @override
+  String get translation_downloadModel => 'Download model';
+
+  @override
+  String get translation_downloading => 'Downloading...';
+
+  @override
+  String get translation_working => 'Working...';
+
+  @override
+  String get translation_stop => 'Stop';
+
+  @override
+  String get translation_mergingChunks =>
+      'Merging downloaded chunks into final file...';
+
+  @override
+  String get translation_downloadedModels => 'Downloaded models';
+
+  @override
+  String get translation_deleteModel => 'Delete model';
+
+  @override
+  String get translation_modelDownloaded => 'Translation model downloaded.';
+
+  @override
+  String get translation_downloadStopped => 'Download stopped.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Download failed: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Enter a model URL first.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Show PIN';
 
@@ -3521,4 +3592,29 @@ class AppLocalizationsEn extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Enter PIN for $deviceName (leave blank if none).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Message translation';
+
+  @override
+  String get translation_translateBeforeSending => 'Translate before sending';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Messages will be translated before send.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Send messages in the original typed language.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Translate to $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Translation options';
+
+  @override
+  String get translation_systemLanguage => 'System language';
 }

lib/l10n/app_localizations_es.dart

@@ -1238,6 +1238,14 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get chat_noMessages => 'Aún no hay mensajes';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Enviar un mensaje a $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Enviar un mensaje para comenzar';
 
@@ -1257,11 +1265,6 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get chat_location => 'Ubicación';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Enviar un mensaje a $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Escribe un mensaje...';
 
@@ -3577,16 +3580,113 @@ class AppLocalizationsEs extends AppLocalizations {
       'Nivel de ruido, RSSI, SNR y tiempo de transmisión';
 
   @override
-  String get scanner_linuxPairingShowPin => 'Mostrar PIN';
+  String get translation_title => 'Traducción';
+
+  @override
+  String get translation_enableTitle => 'Habilitar la traducción';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Traducir los mensajes entrantes y permitir la traducción previa al envío.';
+
+  @override
+  String get translation_composerTitle => 'Traducir antes de enviar';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Controla el estado predeterminado del icono de traducción del compositor.';
+
+  @override
+  String get translation_targetLanguage => 'Idioma de destino';
+
+  @override
+  String get translation_useAppLanguage =>
+      'Utilizar el idioma de la aplicación';
+
+  @override
+  String get translation_downloadedModelLabel => 'Modelo descargado';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Modelo predefinido de Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'URL del modelo manual';
+
+  @override
+  String get translation_downloadModel => 'Descargar el modelo';
+
+  @override
+  String get translation_downloading => 'Descargando...';
+
+  @override
+  String get translation_working => 'Trabajando...';
+
+  @override
+  String get translation_stop => '¡Detente!';
+
+  @override
+  String get translation_mergingChunks =>
+      'Combinando los fragmentos descargados en el archivo final...';
+
+  @override
+  String get translation_downloadedModels => 'Modelos descargados';
+
+  @override
+  String get translation_deleteModel => 'Eliminar modelo';
+
+  @override
+  String get translation_modelDownloaded => 'Modelo de traducción descargado.';
+
+  @override
+  String get translation_downloadStopped => 'La descarga se ha detenido.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'No se pudo descargar: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst =>
+      'Primero, introduzca la URL del modelo.';
+
+  @override
+  String get scanner_linuxPairingShowPin => 'Mostrar código PIN';
 
   @override
   String get scanner_linuxPairingHidePin => 'Ocultar PIN';
 
   @override
-  String get scanner_linuxPairingPinTitle => 'PIN de emparejamiento Bluetooth';
+  String get scanner_linuxPairingPinTitle =>
+      'PIN para emparejar dispositivos Bluetooth';
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return 'Introduzca el PIN para $deviceName (déjelo en blanco si no hay ninguno).';
+    return 'Introduzca el código PIN para $deviceName (deje en blanco si no hay ninguno).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Traducción del mensaje';
+
+  @override
+  String get translation_translateBeforeSending => 'Traducir antes de enviar';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Los mensajes serán traducidos antes de ser enviados.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Envía mensajes utilizando el lenguaje escrito original.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Traducir a $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Opciones de traducción';
+
+  @override
+  String get translation_systemLanguage => 'Idioma del sistema';
 }

lib/l10n/app_localizations_fr.dart

@@ -559,10 +559,10 @@ class AppLocalizationsFr extends AppLocalizations {
   String get settings_bandwidth => 'Bande passante';
 
   @override
-  String get settings_spreadingFactor => 'Facteur de répartition';
+  String get settings_spreadingFactor => 'Facteur de répartition (SF)';
 
   @override
-  String get settings_codingRate => 'Taux de codage';
+  String get settings_codingRate => 'Taux de codage (CR)';
 
   @override
   String get settings_txPower => 'TX Puissance (dBm)';
@@ -946,7 +946,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String contacts_searchRoomServers(int number, String str) {
-    return 'Rechercher $number$str serveurs de salle...';
+    return 'Rechercher $number$str room server...';
   }
 
   @override
@@ -1229,7 +1229,7 @@ class AppLocalizationsFr extends AppLocalizations {
       'N\'importe qui peut rejoindre les canaux #hashtag.';
 
   @override
-  String get channels_scanQrCode => 'Scanner un code QR';
+  String get channels_scanQrCode => 'Scanner un QR code';
 
   @override
   String get channels_scanQrCodeComingSoon => 'Bientôt disponible';
@@ -1243,6 +1243,14 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get chat_noMessages => 'Aucun message pour le moment.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Envoyer un message à $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Envoyer un message pour commencer';
 
@@ -1262,11 +1270,6 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get chat_location => 'Emplacement';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Envoyer un message à $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Saisir un message...';
 
@@ -1489,7 +1492,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get chat_floodModeSubtitle =>
-      'Utiliser le commutateur de routage dans la barre d\'application';
+      'Désactive l\'apprentissage du chemin (à éviter). Utiliser le commutateur de routage dans la barre d\'application pour rebasculer en mode auto par la suite.';
 
   @override
   String get chat_floodModeEnabled =>
@@ -1614,7 +1617,7 @@ class AppLocalizationsFr extends AppLocalizations {
   String get map_repeater => 'Répéteur';
 
   @override
-  String get map_room => 'Salle';
+  String get map_room => 'Room Server';
 
   @override
   String get map_sensor => 'Capteur';
@@ -1730,7 +1733,7 @@ class AppLocalizationsFr extends AppLocalizations {
   String get map_sharedPin => 'Clé partagée';
 
   @override
-  String get map_joinRoom => 'Rejoindre la salle';
+  String get map_joinRoom => 'Rejoindre le room server';
 
   @override
   String get map_manageRepeater => 'Gérer le répéteur';
@@ -1999,7 +2002,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get path_noRepeatersFound =>
-      'Aucun répéteur ou serveur de salle n\'a été trouvé.';
+      'Aucun répéteur ou room server n\'a été trouvé.';
 
   @override
   String get path_customPathsRequire =>
@@ -2209,10 +2212,10 @@ class AppLocalizationsFr extends AppLocalizations {
   String get repeater_bandwidth => 'Bande passante';
 
   @override
-  String get repeater_spreadingFactor => 'Facteur de répartition';
+  String get repeater_spreadingFactor => 'Facteur de répartition (SF)';
 
   @override
-  String get repeater_codingRate => 'Taux de codage';
+  String get repeater_codingRate => 'Taux de codage (CR)';
 
   @override
   String get repeater_locationSettings => 'Paramètres de localisation';
@@ -2235,7 +2238,7 @@ class AppLocalizationsFr extends AppLocalizations {
   String get repeater_features => 'Fonctionnalités';
 
   @override
-  String get repeater_packetForwarding => 'Transfert de paquets';
+  String get repeater_packetForwarding => 'Mode répéteur';
 
   @override
   String get repeater_packetForwardingSubtitle =>
@@ -2902,11 +2905,11 @@ class AppLocalizationsFr extends AppLocalizations {
   }
 
   @override
-  String get community_scanQr => 'Scanner la communauté QR';
+  String get community_scanQr => 'Scanner un QR code de communauté';
 
   @override
   String get community_scanInstructions =>
-      'Pointez l\'appareil photo vers un code QR communautaire.';
+      'Pointez l\'appareil photo vers un QR code de communauté.';
 
   @override
   String get community_showQr => 'Afficher le QR Code';
@@ -2946,7 +2949,7 @@ class AppLocalizationsFr extends AppLocalizations {
       'Les canaux hashtag de la communauté ne sont accessibles qu\'aux membres de la communauté';
 
   @override
-  String get community_invalidQrCode => 'Code QR de communauté non valide';
+  String get community_invalidQrCode => 'QR code de communauté non valide';
 
   @override
   String get community_alreadyMember => 'Déjà membre';
@@ -2970,7 +2973,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get community_scanOrCreate =>
-      'Scanner un code QR ou créer une communauté pour commencer';
+      'Scanner un QR code ou créer une communauté pour commencer';
 
   @override
   String get community_manageCommunities => 'Gérer les Communautés';
@@ -2998,7 +3001,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String community_regenerateSecretConfirm(String name) {
-    return 'Régénérer la clé secrète pour \"$name\" ? Tous les membres devront scanner le nouveau code QR pour continuer à communiquer.';
+    return 'Régénérer la clé secrète pour \"$name\" ? Tous les membres devront scanner le nouveau QR code pour continuer à communiquer.';
   }
 
   @override
@@ -3019,7 +3022,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String community_scanToUpdateSecret(String name) {
-    return 'Scanner le nouveau code QR pour mettre à jour le mot de passe pour \"$name\"';
+    return 'Scanner le nouveau QR code pour mettre à jour le mot de passe pour \"$name\"';
   }
 
   @override
@@ -3267,11 +3270,10 @@ class AppLocalizationsFr extends AppLocalizations {
   String get contacts_repeaterPing => 'Pinguer le répéteur';
 
   @override
-  String get contacts_roomPathTrace =>
-      'Traçage du chemin vers le serveur de la salle';
+  String get contacts_roomPathTrace => 'Traçage du chemin vers le room server';
 
   @override
-  String get contacts_roomPing => 'Pinguer le serveur de la salle';
+  String get contacts_roomPing => 'Pinguer le room server';
 
   @override
   String get contacts_chatTraceRoute => 'Tracer le chemin';
@@ -3377,7 +3379,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get settings_gpxExportRepeaters =>
-      'Exporter les répéteurs / serveur de salle au format GPX';
+      'Exporter les répéteurs / room servers au format GPX';
 
   @override
   String get settings_gpxExportRepeatersSubtitle =>
@@ -3415,7 +3417,7 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get settings_gpxExportRepeatersRoom =>
-      'Emplacements des serveurs de répéteur et de salle';
+      'Emplacements des répéteurs et room servers';
 
   @override
   String get settings_gpxExportChat => 'Emplacements des compagnons';
@@ -3466,11 +3468,11 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get contactsSettings_autoAddRoomServersTitle =>
-      'Ajouter automatiquement les serveurs de salle';
+      'Ajouter automatiquement les room servers';
 
   @override
   String get contactsSettings_autoAddRoomServersSubtitle =>
-      'Autoriser le compagnon à ajouter automatiquement les serveurs de salles découverts';
+      'Autoriser le compagnon à ajouter automatiquement les room servers découverts';
 
   @override
   String get contactsSettings_autoAddSensorsTitle =>
@@ -3602,6 +3604,76 @@ class AppLocalizationsFr extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Niveau de bruit, RSSI, rapport signal/bruit (SNR) et temps d\'antenne';
 
+  @override
+  String get translation_title => 'Traduction';
+
+  @override
+  String get translation_enableTitle => 'Activer la traduction';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Traduire les messages entrants et permettre la traduction avant l\'envoi.';
+
+  @override
+  String get translation_composerTitle => 'Traduire avant d\'envoyer';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Contrôle l\'état par défaut de l\'icône de traduction du composant.';
+
+  @override
+  String get translation_targetLanguage => 'Langue cible';
+
+  @override
+  String get translation_useAppLanguage =>
+      'Utiliser la langue de l\'application';
+
+  @override
+  String get translation_downloadedModelLabel => 'Modèle téléchargé';
+
+  @override
+  String get translation_presetModelLabel => 'Modèle Hugging Face préconfiguré';
+
+  @override
+  String get translation_manualUrlLabel => 'URL du modèle manuel';
+
+  @override
+  String get translation_downloadModel => 'Télécharger le modèle';
+
+  @override
+  String get translation_downloading => 'Téléchargement...';
+
+  @override
+  String get translation_working => 'Au travail...';
+
+  @override
+  String get translation_stop => 'Arrêtez';
+
+  @override
+  String get translation_mergingChunks =>
+      'Fusion des fragments téléchargés dans le fichier final...';
+
+  @override
+  String get translation_downloadedModels => 'Modèles téléchargés';
+
+  @override
+  String get translation_deleteModel => 'Supprimer le modèle';
+
+  @override
+  String get translation_modelDownloaded => 'Modèle de traduction téléchargé.';
+
+  @override
+  String get translation_downloadStopped =>
+      'Le téléchargement a été interrompu.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Échec du téléchargement : $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Entrez d\'abord l\'URL du modèle.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Afficher le code PIN';
 
@@ -3609,10 +3681,36 @@ class AppLocalizationsFr extends AppLocalizations {
   String get scanner_linuxPairingHidePin => 'Masquer le code PIN';
 
   @override
-  String get scanner_linuxPairingPinTitle => 'Code PIN d’appairage Bluetooth';
+  String get scanner_linuxPairingPinTitle =>
+      'Code PIN pour la connexion Bluetooth';
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return 'Entrez le code PIN pour $deviceName (laissez vide si aucun).';
+    return 'Entrez le code PIN pour $deviceName (laissez vide si nécessaire).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Traduction du message';
+
+  @override
+  String get translation_translateBeforeSending => 'Traduire avant d\'envoyer';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Les messages seront traduits avant d\'être envoyés.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Envoyez des messages dans la langue originale, telle que vous l\'avez tapée.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Traduire en $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Options de traduction';
+
+  @override
+  String get translation_systemLanguage => 'Langue du système';
 }

lib/l10n/app_localizations_hu.dart

@@ -1246,6 +1246,14 @@ class AppLocalizationsHu extends AppLocalizations {
   @override
   String get chat_noMessages => 'Még nincs üzenet.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Küldj üzenetet $contactName-nek';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Küldj egy üzenetet, hogy elindulj!';
 
@@ -1265,11 +1273,6 @@ class AppLocalizationsHu extends AppLocalizations {
   @override
   String get chat_location => 'Helyszín';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Küldj üzenetet $contactName-nek';
-  }
-
   @override
   String get chat_typeMessage => 'Írjon üzenetet...';
 
@@ -3594,10 +3597,80 @@ class AppLocalizationsHu extends AppLocalizations {
       'Háttérzaj, RSSI, zaj-sűrűség, és a használat időtartama';
 
   @override
-  String get scanner_linuxPairingShowPin => 'PIN megjelenítése';
+  String get translation_title => 'Fordítás';
 
   @override
-  String get scanner_linuxPairingHidePin => 'PIN elrejtése';
+  String get translation_enableTitle => 'Engedje meg a fordítást';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Fordítsa az érkező üzeneteket, és lehetővé tegye a küldés előtti fordítást.';
+
+  @override
+  String get translation_composerTitle => 'Fordítsa el, mielőtt elküldi';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Ellenőrzi a zeneszerző fordítási ikon alapértékét.';
+
+  @override
+  String get translation_targetLanguage => 'Célnyelv';
+
+  @override
+  String get translation_useAppLanguage =>
+      'Használja az alkalmazás nyelvének beállítását.';
+
+  @override
+  String get translation_downloadedModelLabel => 'Letöltött modell';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Előre definiált Hugging Face-modell';
+
+  @override
+  String get translation_manualUrlLabel => 'Manuális modell URL';
+
+  @override
+  String get translation_downloadModel => 'Letöltés';
+
+  @override
+  String get translation_downloading => 'Letöltés...';
+
+  @override
+  String get translation_working => 'Munkában vagyok...';
+
+  @override
+  String get translation_stop => 'Halt';
+
+  @override
+  String get translation_mergingChunks =>
+      'A letöltött részek összeállítása a végleges fájlba...';
+
+  @override
+  String get translation_downloadedModels => 'Letöltött modelok';
+
+  @override
+  String get translation_deleteModel => 'Törölje a modellt';
+
+  @override
+  String get translation_modelDownloaded => 'Fordítási modell letöltve.';
+
+  @override
+  String get translation_downloadStopped => 'A letöltés leállt.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Letöltés sikertelen: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Addon először egy modell URL-t.';
+
+  @override
+  String get scanner_linuxPairingShowPin => 'Megjelenítse a PIN-kódot';
+
+  @override
+  String get scanner_linuxPairingHidePin => 'Rejtse el a PIN-kódot';
 
   @override
   String get scanner_linuxPairingPinTitle => 'Bluetooth párosítási PIN';
@@ -3606,4 +3679,30 @@ class AppLocalizationsHu extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Adja meg a(z) $deviceName PIN-kódját (hagyja üresen, ha nincs).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Üzenet fordítása';
+
+  @override
+  String get translation_translateBeforeSending =>
+      'Fordítsa el, mielőtt elküldi';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'A üzenetek fordítását a küldés előtt elvégezzük.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Küldj üzeneteket az eredeti, nyomtatott nyelven.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Fordítás $language-ra';
+  }
+
+  @override
+  String get translation_translationOptions => 'Fordítási lehetőségek';
+
+  @override
+  String get translation_systemLanguage => 'Rendszer nyelvé';
 }

lib/l10n/app_localizations_it.dart

@@ -1239,6 +1239,14 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get chat_noMessages => 'Nessun messaggio ancora';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Invia un messaggio a $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Invia un messaggio per iniziare';
 
@@ -1258,11 +1266,6 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get chat_location => 'Posizione';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Invia un messaggio a $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Digita un messaggio...';
 
@@ -3580,17 +3583,113 @@ class AppLocalizationsIt extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Livello di rumore, RSSI, rapporto segnale/rumore (SNR) e tempo di trasmissione';
 
+  @override
+  String get translation_title => 'Traduzione';
+
+  @override
+  String get translation_enableTitle => 'Abilitare la traduzione';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Tradurre i messaggi in arrivo e consentire la traduzione preventiva prima dell\'invio.';
+
+  @override
+  String get translation_composerTitle => 'Tradurre prima di inviare';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Controlla lo stato predefinito dell\'icona di traduzione del compositore.';
+
+  @override
+  String get translation_targetLanguage => 'Lingua di destinazione';
+
+  @override
+  String get translation_useAppLanguage => 'Utilizza la lingua dell\'app';
+
+  @override
+  String get translation_downloadedModelLabel => 'Modello scaricato';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Modello predefinito di Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'URL del modello manuale';
+
+  @override
+  String get translation_downloadModel => 'Scarica il modello';
+
+  @override
+  String get translation_downloading => 'Inizio download...';
+
+  @override
+  String get translation_working => 'Lavoro...';
+
+  @override
+  String get translation_stop => 'Smetta';
+
+  @override
+  String get translation_mergingChunks =>
+      'Unione dei frammenti scaricati in un unico file...';
+
+  @override
+  String get translation_downloadedModels => 'Modelli scaricati';
+
+  @override
+  String get translation_deleteModel => 'Elimina modello';
+
+  @override
+  String get translation_modelDownloaded => 'Modello di traduzione scaricato.';
+
+  @override
+  String get translation_downloadStopped => 'Il download è stato interrotto.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Download fallito: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst =>
+      'Inserite innanzitutto l\'URL del modello.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Mostra PIN';
 
   @override
-  String get scanner_linuxPairingHidePin => 'Nascondi PIN';
+  String get scanner_linuxPairingHidePin => 'Nascondi il PIN';
 
   @override
-  String get scanner_linuxPairingPinTitle => 'PIN di associazione Bluetooth';
+  String get scanner_linuxPairingPinTitle =>
+      'PIN per l\'accoppiamento Bluetooth';
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return 'Inserisci il PIN per $deviceName (lascia vuoto se non ce n\'è).';
+    return 'Inserire il codice PIN per $deviceName (lasciare vuoto se non presente).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Traduzione del messaggio';
+
+  @override
+  String get translation_translateBeforeSending => 'Tradurre prima di inviare';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'I messaggi verranno tradotti prima di essere inviati.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Invia messaggi utilizzando la lingua originale, scritta.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Tradurre in $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Opzioni di traduzione';
+
+  @override
+  String get translation_systemLanguage => 'Lingua del sistema';
 }

lib/l10n/app_localizations_ja.dart

@@ -1179,6 +1179,14 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get chat_noMessages => 'まだメッセージは届いていません';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return '$contactName へのメッセージを送信する';
+  }
+
   @override
   String get chat_sendMessageToStart => '開始するためにメッセージを送信してください';
 
@@ -1198,11 +1206,6 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get chat_location => '場所';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return '$contactName へのメッセージを送信する';
-  }
-
   @override
   String get chat_typeMessage => 'メッセージを入力してください…';
 
@@ -3408,6 +3411,71 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get radioStats_settingsSubtitle => 'ノイズレベル、RSSI、SNR、および通信時間';
 
+  @override
+  String get translation_title => '翻訳';
+
+  @override
+  String get translation_enableTitle => '翻訳機能を有効にする';
+
+  @override
+  String get translation_enableSubtitle => '受信メッセージを翻訳し、送信前に翻訳を適用できるようにする。';
+
+  @override
+  String get translation_composerTitle => '送信する前に翻訳する';
+
+  @override
+  String get translation_composerSubtitle => '作曲家翻訳アイコンのデフォルト状態を制御する。';
+
+  @override
+  String get translation_targetLanguage => '翻訳対象言語';
+
+  @override
+  String get translation_useAppLanguage => 'アプリの言語設定';
+
+  @override
+  String get translation_downloadedModelLabel => 'ダウンロードしたモデル';
+
+  @override
+  String get translation_presetModelLabel => 'あらかじめ設定されたHugging Faceモデル';
+
+  @override
+  String get translation_manualUrlLabel => 'マニュアルモデルのURL';
+
+  @override
+  String get translation_downloadModel => 'モデルのダウンロード';
+
+  @override
+  String get translation_downloading => 'ダウンロード中...';
+
+  @override
+  String get translation_working => '業務中…';
+
+  @override
+  String get translation_stop => '停止';
+
+  @override
+  String get translation_mergingChunks => 'ダウンロードしたファイルを最終ファイルに結合中...';
+
+  @override
+  String get translation_downloadedModels => 'ダウンロードされたモデル';
+
+  @override
+  String get translation_deleteModel => 'モデルを削除';
+
+  @override
+  String get translation_modelDownloaded => '翻訳モデルのダウンロードが完了しました。';
+
+  @override
+  String get translation_downloadStopped => 'ダウンロードが中断されました。';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'ダウンロードに失敗しました：$error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'まず、モデルのURLを入力してください。';
+
   @override
   String get scanner_linuxPairingShowPin => 'PINを表示';
 
@@ -3421,4 +3489,27 @@ class AppLocalizationsJa extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return '$deviceNameのPINを入力してください（なしの場合は空欄のまま）。';
   }
+
+  @override
+  String get translation_messageTranslation => 'メッセージの翻訳';
+
+  @override
+  String get translation_translateBeforeSending => '送信する前に翻訳する';
+
+  @override
+  String get translation_composerEnabledHint => 'メッセージは送信前に翻訳されます。';
+
+  @override
+  String get translation_composerDisabledHint => '元のタイプされた言語でメッセージを送信してください。';
+
+  @override
+  String translation_translateTo(String language) {
+    return '$language への翻訳';
+  }
+
+  @override
+  String get translation_translationOptions => '翻訳の選択肢';
+
+  @override
+  String get translation_systemLanguage => 'システム言語';
 }

lib/l10n/app_localizations_ko.dart

@@ -1174,6 +1174,14 @@ class AppLocalizationsKo extends AppLocalizations {
   @override
   String get chat_noMessages => '아직 메시지가 없습니다.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return '$contactName에게 메시지를 보내';
+  }
+
   @override
   String get chat_sendMessageToStart => '시작하려면 메시지를 보내세요.';
 
@@ -1193,11 +1201,6 @@ class AppLocalizationsKo extends AppLocalizations {
   @override
   String get chat_location => '위치';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return '$contactName에게 메시지를 보내';
-  }
-
   @override
   String get chat_typeMessage => '메시지를 입력하세요...';
 
@@ -3408,7 +3411,72 @@ class AppLocalizationsKo extends AppLocalizations {
   String get radioStats_settingsSubtitle => '잡음 수준, RSSI, 신호 대 잡음비, 통신 시간';
 
   @override
-  String get scanner_linuxPairingShowPin => 'PIN 표시';
+  String get translation_title => '번역';
+
+  @override
+  String get translation_enableTitle => '번역 기능 활성화';
+
+  @override
+  String get translation_enableSubtitle => '입력 메시지를 번역하고, 미리 번역 기능을 제공합니다.';
+
+  @override
+  String get translation_composerTitle => '보내기 전에 번역';
+
+  @override
+  String get translation_composerSubtitle => '컴포저 번역 아이콘의 기본 상태를 제어합니다.';
+
+  @override
+  String get translation_targetLanguage => '목표 언어';
+
+  @override
+  String get translation_useAppLanguage => '앱 언어 사용';
+
+  @override
+  String get translation_downloadedModelLabel => '다운로드한 모델';
+
+  @override
+  String get translation_presetModelLabel => '사전에 설정된 Hugging Face 모델';
+
+  @override
+  String get translation_manualUrlLabel => '수동 모델 URL';
+
+  @override
+  String get translation_downloadModel => '모델 다운로드';
+
+  @override
+  String get translation_downloading => '다운로드 중...';
+
+  @override
+  String get translation_working => '업무 중...';
+
+  @override
+  String get translation_stop => '멈춰';
+
+  @override
+  String get translation_mergingChunks => '다운로드한 파일 조각들을 최종 파일로 병합 중...';
+
+  @override
+  String get translation_downloadedModels => '다운로드한 모델';
+
+  @override
+  String get translation_deleteModel => '모델 삭제';
+
+  @override
+  String get translation_modelDownloaded => '번역 모델이 다운로드되었습니다.';
+
+  @override
+  String get translation_downloadStopped => '다운로드 중단됨.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return '다운로드 실패: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => '먼저 모델 URL을 입력하세요.';
+
+  @override
+  String get scanner_linuxPairingShowPin => 'PIN 보기';
 
   @override
   String get scanner_linuxPairingHidePin => 'PIN 숨기기';
@@ -3418,6 +3486,29 @@ class AppLocalizationsKo extends AppLocalizations {
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return '$deviceName에 대한 PIN을 입력하세요 (없으면 비워두세요).';
+    return '$deviceName의 PIN을 입력하세요 (해당하는 경우에만 입력).';
   }
+
+  @override
+  String get translation_messageTranslation => '메시지 번역';
+
+  @override
+  String get translation_translateBeforeSending => '보내기 전에 번역';
+
+  @override
+  String get translation_composerEnabledHint => '메시지는 전송하기 전에 번역될 것입니다.';
+
+  @override
+  String get translation_composerDisabledHint => '원래 작성된 언어로 메시지를 보내세요.';
+
+  @override
+  String translation_translateTo(String language) {
+    return '$language 번역';
+  }
+
+  @override
+  String get translation_translationOptions => '번역 옵션';
+
+  @override
+  String get translation_systemLanguage => '시스템 언어';
 }

lib/l10n/app_localizations_nl.dart

@@ -313,7 +313,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get settings_nodeSettings => 'Node Instellingen';
 
   @override
-  String get settings_nodeName => 'Node Naam';
+  String get settings_nodeName => 'Nodenaam';
 
   @override
   String get settings_nodeNameNotSet => 'Niet ingesteld';
@@ -452,7 +452,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get settings_advertisementSent => 'Advertentie verzonden';
 
   @override
-  String get settings_syncTime => 'Synchronisatie Tijd';
+  String get settings_syncTime => 'Tijd Synchroniseren';
 
   @override
   String get settings_syncTimeSubtitle =>
@@ -472,7 +472,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get settings_rebootDevice => 'Apparaat opnieuw opstarten';
 
   @override
-  String get settings_rebootDeviceSubtitle => 'Herstart het MeshCore apparaat';
+  String get settings_rebootDeviceSubtitle => 'Herstart het MeshCore-apparaat';
 
   @override
   String get settings_rebootDeviceConfirm =>
@@ -556,7 +556,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get settings_codingRate => 'Codeertarief';
 
   @override
-  String get settings_txPower => 'TX Vermogen (dBm)';
+  String get settings_txPower => 'TX-Vermogen (dBm)';
 
   @override
   String get settings_txPowerHelper => '0 - 22';
@@ -565,11 +565,11 @@ class AppLocalizationsNl extends AppLocalizations {
   String get settings_txPowerInvalid => 'Ongeldige TX-vermogen (0-22 dBm)';
 
   @override
-  String get settings_clientRepeat => 'Herhalen: Afgekoppeld';
+  String get settings_clientRepeat => 'Off-Grid Herhalen';
 
   @override
   String get settings_clientRepeatSubtitle =>
-      'Laat dit apparaat de mesh-pakketten opnieuw verzenden voor andere apparaten.';
+      'Laat dit apparaat de berichten van andere apparaten doorsturen.';
 
   @override
   String get settings_clientRepeatFreqWarning =>
@@ -846,19 +846,19 @@ class AppLocalizationsNl extends AppLocalizations {
   String get appSettings_allTime => 'Altijd';
 
   @override
-  String get appSettings_lastHour => 'Laat uur';
+  String get appSettings_lastHour => 'Afgelopen uur';
 
   @override
-  String get appSettings_last6Hours => 'laatste 6 uur';
+  String get appSettings_last6Hours => 'Afgelopen 6 uur';
 
   @override
-  String get appSettings_last24Hours => 'De laatste 24 uur';
+  String get appSettings_last24Hours => 'Afgelopen 24 uur';
 
   @override
-  String get appSettings_lastWeek => 'Laatste week';
+  String get appSettings_lastWeek => 'Afgelopen week';
 
   @override
-  String get appSettings_offlineMapCache => 'Offline Kaarten Cache';
+  String get appSettings_offlineMapCache => 'Offline Kaartcache';
 
   @override
   String get appSettings_unitsTitle => 'Eenheden';
@@ -1185,32 +1185,32 @@ class AppLocalizationsNl extends AppLocalizations {
   String get channels_sortUnread => 'Ongelezen';
 
   @override
-  String get channels_createPrivateChannel => 'Maak een Privé Kanaal';
+  String get channels_createPrivateChannel => 'PrivéKanaal Aanmaken';
 
   @override
   String get channels_createPrivateChannelDesc =>
       'Beveiligd met een geheime sleutel.';
 
   @override
-  String get channels_joinPrivateChannel => 'Sluit een Privé Kanaal aan';
+  String get channels_joinPrivateChannel => 'PrivéKanaal Toetreden';
 
   @override
   String get channels_joinPrivateChannelDesc =>
-      'Handmatig een geheime sleutel invoeren.';
+      'Voer handmatig een geheime sleutel in.';
 
   @override
-  String get channels_joinPublicChannel => 'Sluit het Open Kanaal';
+  String get channels_joinPublicChannel => 'Publiek Kanaal Toetreden';
 
   @override
   String get channels_joinPublicChannelDesc =>
-      'Iedereen kan dit kanaal aanmelden.';
+      'Iedereen kan toetreden tot dit kanaal.';
 
   @override
-  String get channels_joinHashtagChannel => 'Sluit een Hashtag Kanaal';
+  String get channels_joinHashtagChannel => 'Hashtag-kanaal Aanmaken';
 
   @override
   String get channels_joinHashtagChannelDesc =>
-      'Iedereen kan lid worden van hashtag-kanalen.';
+      'Iedereen kan toetreden tot hashtag-kanalen.';
 
   @override
   String get channels_scanQrCode => 'Scan een QR-code';
@@ -1227,6 +1227,14 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get chat_noMessages => 'Nog geen berichten.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Verstuur een bericht naar $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Een bericht sturen om te beginnen';
 
@@ -1246,11 +1254,6 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get chat_location => 'Locatie';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Verstuur een bericht naar $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Type een bericht...';
 
@@ -1709,7 +1712,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get map_sharedPin => 'Gedeelde pin';
 
   @override
-  String get map_joinRoom => 'Sluit Kamer';
+  String get map_joinRoom => 'Kamer Toetreden';
 
   @override
   String get map_manageRepeater => 'Beheer Repeater';
@@ -2001,7 +2004,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get room_management => 'Beheer Server Kamer';
 
   @override
-  String get repeater_managementTools => 'Beheerinstrumenten';
+  String get repeater_managementTools => 'Beheerfuncties';
 
   @override
   String get repeater_status => 'Status';
@@ -2027,7 +2030,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_neighbors => 'Buren';
 
   @override
-  String get repeater_neighborsSubtitle => 'Bekijk nul hops buren.';
+  String get repeater_neighborsSubtitle => 'Bekijk nul-hopsburen.';
 
   @override
   String get repeater_settings => 'Instellingen';
@@ -2093,10 +2096,10 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_noiseFloor => 'Ruisvloer';
 
   @override
-  String get repeater_txAirtime => 'TX Airtime';
+  String get repeater_txAirtime => 'TX-zendtijd';
 
   @override
-  String get repeater_rxAirtime => 'RX Airtime';
+  String get repeater_rxAirtime => 'RX-zendtijd';
 
   @override
   String get repeater_packetStatistics => 'Pakketstatistieken';
@@ -2141,7 +2144,7 @@ class AppLocalizationsNl extends AppLocalizations {
   }
 
   @override
-  String get repeater_settingsTitle => 'Repeater Instellingen';
+  String get repeater_settingsTitle => 'Repeaterinstellingen';
 
   @override
   String get repeater_basicSettings => 'Basisinstellingen';
@@ -2150,19 +2153,19 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_repeaterName => 'Repeaternaam';
 
   @override
-  String get repeater_repeaterNameHelper => 'Weergave naam voor deze repeater';
+  String get repeater_repeaterNameHelper => 'Weergavenaam voor deze repeater';
 
   @override
   String get repeater_adminPassword => 'Admin wachtwoord';
 
   @override
-  String get repeater_adminPasswordHelper => 'Volledige toegangspaswoord';
+  String get repeater_adminPasswordHelper => 'Wachtwoord administratortoegang';
 
   @override
-  String get repeater_guestPassword => 'Wachtwoord Gast';
+  String get repeater_guestPassword => 'Gast wachtwoord';
 
   @override
-  String get repeater_guestPasswordHelper => 'Leesbeheer wachtwoord';
+  String get repeater_guestPasswordHelper => 'Wachtwoord gasttoegen';
 
   @override
   String get repeater_radioSettings => 'Radio Instellingen';
@@ -2189,7 +2192,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_codingRate => 'Codeertarief';
 
   @override
-  String get repeater_locationSettings => 'Locatie Instellingen';
+  String get repeater_locationSettings => 'Locatie-instellingen';
 
   @override
   String get repeater_latitude => 'Breedtegraad';
@@ -2221,14 +2224,14 @@ class AppLocalizationsNl extends AppLocalizations {
       'Toegestane leesbeheer toegang voor gasten.';
 
   @override
-  String get repeater_privacyMode => 'Privacy Modus';
+  String get repeater_privacyMode => 'Privacymodus';
 
   @override
   String get repeater_privacyModeSubtitle =>
       'Naam/locatie verbergen in advertenties';
 
   @override
-  String get repeater_advertisementSettings => 'Advertentie Instellingen';
+  String get repeater_advertisementSettings => 'Advertentie-instellingen';
 
   @override
   String get repeater_localAdvertInterval => 'Lokale Advertentie Interval';
@@ -2333,7 +2336,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_refreshGuestAccess => 'Toegang Gast Vernieuwen';
 
   @override
-  String get repeater_refreshPrivacyMode => 'Privacy Mode vernieuwen';
+  String get repeater_refreshPrivacyMode => 'Privacymode vernieuwen';
 
   @override
   String get repeater_refreshAdvertisementSettings =>
@@ -2359,10 +2362,10 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_commandHelp => 'Help';
 
   @override
-  String get repeater_clearHistory => 'Verwijder Geschiedenis';
+  String get repeater_clearHistory => 'Geschiedenis Verwijderen';
 
   @override
-  String get repeater_noCommandsSent => 'Geen commando\'s verzonden nog.';
+  String get repeater_noCommandsSent => 'Nog geen commando\'s verzonden.';
 
   @override
   String get repeater_typeCommandOrUseQuick =>
@@ -2389,25 +2392,25 @@ class AppLocalizationsNl extends AppLocalizations {
   }
 
   @override
-  String get repeater_cliQuickGetName => 'Haal Naam op';
+  String get repeater_cliQuickGetName => 'Naam opvragen';
 
   @override
-  String get repeater_cliQuickGetRadio => 'Radio ontvangen';
+  String get repeater_cliQuickGetRadio => 'Radio-instellingen opvragen';
 
   @override
-  String get repeater_cliQuickGetTx => 'Krijg TX';
+  String get repeater_cliQuickGetTx => 'TX opvragen';
 
   @override
-  String get repeater_cliQuickNeighbors => 'Buren';
+  String get repeater_cliQuickNeighbors => 'Buren opvragen';
 
   @override
-  String get repeater_cliQuickVersion => 'Versie';
+  String get repeater_cliQuickVersion => 'Versie opvragen';
 
   @override
-  String get repeater_cliQuickAdvertise => 'Advertenties';
+  String get repeater_cliQuickAdvertise => 'Advertenties opvragen';
 
   @override
-  String get repeater_cliQuickClock => 'Tijd';
+  String get repeater_cliQuickClock => 'Tijd opvragen';
 
   @override
   String get repeater_cliQuickClockSync => 'Kloksynchronisatie';
@@ -2416,7 +2419,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_cliQuickDiscovery => 'Ontdek Buren';
 
   @override
-  String get repeater_cliHelpAdvert => 'Verstuurt een advertentiepakket';
+  String get repeater_cliHelpAdvert => 'Advertentie uitzenden';
 
   @override
   String get repeater_cliHelpReboot =>
@@ -2688,7 +2691,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get telemetry_voltageLabel => 'Spanning';
 
   @override
-  String get telemetry_mcuTemperatureLabel => 'MCU Temperatuur';
+  String get telemetry_mcuTemperatureLabel => 'MCU-temperatuur';
 
   @override
   String get telemetry_temperatureLabel => 'Temperatuur';
@@ -2729,7 +2732,7 @@ class AppLocalizationsNl extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbors => 'Herhalingen Buren';
+  String get neighbors_repeatersNeighbors => 'Repeatbburen';
 
   @override
   String get neighbors_noData => 'Geen gegevens van buren beschikbaar.';
@@ -3028,7 +3031,7 @@ class AppLocalizationsNl extends AppLocalizations {
   String get listFilter_latestMessages => 'Recente berichten';
 
   @override
-  String get listFilter_heardRecently => 'Hoor je onlangs';
+  String get listFilter_heardRecently => 'Recent gezien';
 
   @override
   String get listFilter_az => 'A-Z';
@@ -3274,7 +3277,7 @@ class AppLocalizationsNl extends AppLocalizations {
       'Contact uit klembord toevoegen';
 
   @override
-  String get contacts_ShareContact => 'Kontakt naar Klembord kopiëren';
+  String get contacts_ShareContact => 'Contact naar Klembord kopiëren';
 
   @override
   String get contacts_ShareContactZeroHop => 'Contact delen via advertentie';
@@ -3558,6 +3561,76 @@ class AppLocalizationsNl extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Ruimtelijke ruis, RSSI, SNR en beschikbare tijd';
 
+  @override
+  String get translation_title => 'Vertaling';
+
+  @override
+  String get translation_enableTitle => 'Activeer vertaling';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Vertaal inkomende berichten en maak het mogelijk om berichten vooraf te vertalen.';
+
+  @override
+  String get translation_composerTitle => 'Vertaal voor verzending';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Stelt de standaardstatus van het pictogram voor de vertaling van de componist in.';
+
+  @override
+  String get translation_targetLanguage => 'Doeltaal';
+
+  @override
+  String get translation_useAppLanguage => 'Gebruik de taal van de app';
+
+  @override
+  String get translation_downloadedModelLabel => 'Gedownloade model';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Voorgeprogrammeerd Hugging Face-model';
+
+  @override
+  String get translation_manualUrlLabel => 'URL van de handleiding';
+
+  @override
+  String get translation_downloadModel => 'Download het model';
+
+  @override
+  String get translation_downloading => 'Downloaden...';
+
+  @override
+  String get translation_working => 'Werken...';
+
+  @override
+  String get translation_stop => 'Stoppen';
+
+  @override
+  String get translation_mergingChunks =>
+      'Het samenvoegen van de gedownloade stukken tot één eindbestand...';
+
+  @override
+  String get translation_downloadedModels => 'Gedownloade modellen';
+
+  @override
+  String get translation_deleteModel => 'Model verwijderen';
+
+  @override
+  String get translation_modelDownloaded => 'Vertalingmodel gedownload.';
+
+  @override
+  String get translation_downloadStopped => 'Download is afgebroken.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Download mislukt: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst =>
+      'Voer eerst een URL van een model in.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Toon PIN';
 
@@ -3571,4 +3644,29 @@ class AppLocalizationsNl extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Voer PIN in voor $deviceName (laat leeg als er geen is).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Berichtvertaling';
+
+  @override
+  String get translation_translateBeforeSending => 'Vertaal voor verzending';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'De berichten worden vertaald voordat ze verzonden worden.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Stuur berichten in de oorspronkelijke, getypte taal.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Vertalen naar $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Opties voor vertaling';
+
+  @override
+  String get translation_systemLanguage => 'Taal van het systeem';
 }

lib/l10n/app_localizations_pl.dart

@@ -440,7 +440,7 @@ class AppLocalizationsPl extends AppLocalizations {
 
   @override
   String settings_multiAck(String value) {
-    return 'Wiele potwierdzeń: $value';
+    return 'Wielokrotne ACK: $value';
   }
 
   @override
@@ -611,7 +611,7 @@ class AppLocalizationsPl extends AppLocalizations {
   String get appSettings_language => 'Język';
 
   @override
-  String get appSettings_languageSystem => 'Domyślny systemu';
+  String get appSettings_languageSystem => 'Domyślny systemowy';
 
   @override
   String get appSettings_languageEn => 'English';
@@ -1247,6 +1247,14 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get chat_noMessages => 'Brak jeszcze wiadomości';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Wyślij wiadomość do $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Wyślij wiadomość, aby rozpocząć.';
 
@@ -1267,11 +1275,6 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get chat_location => 'Lokalizacja';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Wyślij wiadomość do $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Wpisz wiadomość...';
 
@@ -1699,7 +1702,7 @@ class AppLocalizationsPl extends AppLocalizations {
   String get map_otherNodes => 'Inne węzły';
 
   @override
-  String get map_showOverlaps => 'Nakładające się klucze powtarzalne';
+  String get map_showOverlaps => 'Nakładające się klucze przekaźników';
 
   @override
   String get map_keyPrefix => 'Prefiks klucza';
@@ -1745,7 +1748,7 @@ class AppLocalizationsPl extends AppLocalizations {
   String get map_runTrace => 'Uruchom ślad ścieżki';
 
   @override
-  String get map_runTraceWithReturnPath => 'Wróć z powrotem tą samą ścieżką';
+  String get map_runTraceWithReturnPath => 'Wróć tą samą ścieżką';
 
   @override
   String get map_removeLast => 'Usuń ostatni';
@@ -2055,8 +2058,7 @@ class AppLocalizationsPl extends AppLocalizations {
   String get repeater_neighbors => 'Sąsiedzi';
 
   @override
-  String get repeater_neighborsSubtitle =>
-      'Wyświetl sąsiedztwo zerowych hopów.';
+  String get repeater_neighborsSubtitle => 'Wyświetl sąsiadów zero-hop.';
 
   @override
   String get repeater_settings => 'Ustawienia';
@@ -3374,11 +3376,11 @@ class AppLocalizationsPl extends AppLocalizations {
 
   @override
   String get settings_gpxExportRepeaters =>
-      'Eksportuj przekaźniki / serwer pokojowy do GPX';
+      'Eksportuj przekaźniki / roomservery do GPX';
 
   @override
   String get settings_gpxExportRepeatersSubtitle =>
-      'Eksportuje przekaźniki / roomserver z lokalizacją do pliku GPX.';
+      'Eksportuje przekaźniki / roomservery z lokalizacją do pliku GPX.';
 
   @override
   String get settings_gpxExportContacts => 'Eksportuj towarzyszy do GPX';
@@ -3410,7 +3412,7 @@ class AppLocalizationsPl extends AppLocalizations {
 
   @override
   String get settings_gpxExportRepeatersRoom =>
-      'Lokalizacje przekaźników i serwerów pokojowych';
+      'Lokalizacje przekaźników i roomserverów';
 
   @override
   String get settings_gpxExportChat => 'Lokalizacje towarzyszy';
@@ -3427,7 +3429,7 @@ class AppLocalizationsPl extends AppLocalizations {
       'Eksport danych mapy GPX meshcore-open';
 
   @override
-  String get snrIndicator_nearByRepeaters => 'Nadajniki w pobliżu';
+  String get snrIndicator_nearByRepeaters => 'Pobliskie przekaźniki';
 
   @override
   String get snrIndicator_lastSeen => 'Ostatnio widziany';
@@ -3460,11 +3462,11 @@ class AppLocalizationsPl extends AppLocalizations {
 
   @override
   String get contactsSettings_autoAddRoomServersTitle =>
-      'Automatycznie dodaj serwery pokojowe';
+      'Automatycznie dodaj roomservery';
 
   @override
   String get contactsSettings_autoAddRoomServersSubtitle =>
-      'Zezwól towarzyszowi na automatyczne dodawanie znalezionych serwerów pokojowych.';
+      'Zezwól towarzyszowi na automatyczne dodawanie znalezionych roomserverów.';
 
   @override
   String get contactsSettings_autoAddSensorsTitle =>
@@ -3592,6 +3594,74 @@ class AppLocalizationsPl extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Szum tła, RSSI, SNR oraz czas dostępny';
 
+  @override
+  String get translation_title => 'Tłumaczenie';
+
+  @override
+  String get translation_enableTitle => 'Włącz tłumaczenie';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Tłumaczenie otrzymywanych wiadomości oraz umożliwienie tłumaczenia przed wysłaniem.';
+
+  @override
+  String get translation_composerTitle => 'Przekład przed wysłaniem';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Kontroluje domyślny stan ikony tłumaczenia w edytorze.';
+
+  @override
+  String get translation_targetLanguage => 'Język docelowy';
+
+  @override
+  String get translation_useAppLanguage => 'Użyj języka aplikacji';
+
+  @override
+  String get translation_downloadedModelLabel => 'Pobudowany model';
+
+  @override
+  String get translation_presetModelLabel => 'Wspólny model Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'Adres URL do wersji manualnej';
+
+  @override
+  String get translation_downloadModel => 'Pobierz model';
+
+  @override
+  String get translation_downloading => 'Pobieranie...';
+
+  @override
+  String get translation_working => 'Praca...';
+
+  @override
+  String get translation_stop => 'Zatrzymaj się';
+
+  @override
+  String get translation_mergingChunks =>
+      'Scalanie pobranych fragmentów w jeden plik końcowy...';
+
+  @override
+  String get translation_downloadedModels => 'Pobrane modele';
+
+  @override
+  String get translation_deleteModel => 'Usuń model';
+
+  @override
+  String get translation_modelDownloaded => 'Model tłumaczenia został pobrany.';
+
+  @override
+  String get translation_downloadStopped => 'Pobieranie zakończone.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Nie udało się pobrać: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Najpierw wprowadź adres URL modelu.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Pokaż PIN';
 
@@ -3605,4 +3675,29 @@ class AppLocalizationsPl extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Wprowadź kod PIN dla $deviceName (pozostaw puste, jeśli brak).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Tłumaczenie wiadomości';
+
+  @override
+  String get translation_translateBeforeSending => 'Przekład przed wysłaniem';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Komunikaty zostaną przetłumaczone przed wysłaniem.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Wysyłaj wiadomości w oryginalnym, wpisanym formacie.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Tłumacz na $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Opcje tłumaczenia';
+
+  @override
+  String get translation_systemLanguage => 'Język systemu';
 }

lib/l10n/app_localizations_pt.dart

@@ -1238,6 +1238,14 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get chat_noMessages => 'Ainda não existem mensagens.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Enviar uma mensagem para $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Enviar uma mensagem para começar';
 
@@ -1257,11 +1265,6 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get chat_location => 'Localização';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Enviar uma mensagem para $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Digite uma mensagem...';
 
@@ -3573,6 +3576,75 @@ class AppLocalizationsPt extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Nível de ruído, RSSI, SNR e tempo de transmissão';
 
+  @override
+  String get translation_title => 'Tradução';
+
+  @override
+  String get translation_enableTitle => 'Ativar a tradução';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Traduzir mensagens recebidas e permitir a tradução antes do envio.';
+
+  @override
+  String get translation_composerTitle => 'Traduza antes de enviar';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Controla o estado padrão do ícone de tradução do compositor.';
+
+  @override
+  String get translation_targetLanguage => 'Língua-alvo';
+
+  @override
+  String get translation_useAppLanguage => 'Utilize o idioma da aplicação';
+
+  @override
+  String get translation_downloadedModelLabel => 'Modelo baixado';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Modelo pré-definido da Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'URL do modelo manual';
+
+  @override
+  String get translation_downloadModel => 'Baixar modelo';
+
+  @override
+  String get translation_downloading => 'Baixando...';
+
+  @override
+  String get translation_working => 'Trabalhando...';
+
+  @override
+  String get translation_stop => 'Pare';
+
+  @override
+  String get translation_mergingChunks =>
+      'Combinando os fragmentos baixados em um único arquivo...';
+
+  @override
+  String get translation_downloadedModels => 'Modelos baixados';
+
+  @override
+  String get translation_deleteModel => 'Excluir modelo';
+
+  @override
+  String get translation_modelDownloaded => 'Modelo de tradução baixado.';
+
+  @override
+  String get translation_downloadStopped => 'Download interrompido.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Falha na descarga: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Insira primeiro a URL do modelo.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Mostrar PIN';
 
@@ -3586,4 +3658,29 @@ class AppLocalizationsPt extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Insira o PIN para $deviceName (deixe em branco se não houver).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Tradução da mensagem';
+
+  @override
+  String get translation_translateBeforeSending => 'Traduzir antes de enviar';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'As mensagens serão traduzidas antes de serem enviadas.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Envie mensagens no idioma original, conforme digitado.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Traduzir para $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Opções de tradução';
+
+  @override
+  String get translation_systemLanguage => 'Idioma do sistema';
 }

lib/l10n/app_localizations_ru.dart

@@ -1238,6 +1238,14 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get chat_noMessages => 'Сообщений пока нет';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Отправить сообщение $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Отправьте сообщение, чтобы начать';
 
@@ -1257,11 +1265,6 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get chat_location => 'Местоположение';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Отправить сообщение $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Напишите сообщение...';
 
@@ -3587,6 +3590,75 @@ class AppLocalizationsRu extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Уровень шума, RSSI, SNR и время передачи';
 
+  @override
+  String get translation_title => 'Перевод';
+
+  @override
+  String get translation_enableTitle => 'Включить перевод';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Переводить входящие сообщения и позволять предварительный перевод перед отправкой.';
+
+  @override
+  String get translation_composerTitle => 'Переводить перед отправкой';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Управляет исходным состоянием значка перевода, предоставляемого редактором.';
+
+  @override
+  String get translation_targetLanguage => 'Целевой язык';
+
+  @override
+  String get translation_useAppLanguage => 'Используйте язык приложения';
+
+  @override
+  String get translation_downloadedModelLabel => 'Загруженная модель';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Предопределенная модель от Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'Ссылка на руководство';
+
+  @override
+  String get translation_downloadModel => 'Скачать модель';
+
+  @override
+  String get translation_downloading => 'Загрузка...';
+
+  @override
+  String get translation_working => 'Работа...';
+
+  @override
+  String get translation_stop => 'Прекратите';
+
+  @override
+  String get translation_mergingChunks =>
+      'Объединение скачанных фрагментов в один финальный файл...';
+
+  @override
+  String get translation_downloadedModels => 'Загруженные модели';
+
+  @override
+  String get translation_deleteModel => 'Удалить модель';
+
+  @override
+  String get translation_modelDownloaded => 'Модель перевода загружена.';
+
+  @override
+  String get translation_downloadStopped => 'Процесс загрузки был прерван.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Не удалось скачать: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Сначала введите URL модели.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Показать PIN';
 
@@ -3600,4 +3672,29 @@ class AppLocalizationsRu extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Введите PIN‑код для $deviceName (оставьте пустым, если нет).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Перевод сообщения';
+
+  @override
+  String get translation_translateBeforeSending => 'Перевести перед отправкой';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Сообщения будут переведены перед отправкой.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Отправляйте сообщения на языке, в котором они были изначально набраны.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Перевести на $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Варианты перевода';
+
+  @override
+  String get translation_systemLanguage => 'Язык системы';
 }

lib/l10n/app_localizations_sk.dart

@@ -1226,6 +1226,14 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get chat_noMessages => 'Zatiaľ žiadne správy.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Pošli správu $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Pošlite správu na začiatok';
 
@@ -1245,11 +1253,6 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get chat_location => 'Lokalita';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Pošli správu $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Napište správu...';
 
@@ -3551,6 +3554,77 @@ class AppLocalizationsSk extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Úroveň hluku, RSSI, SNR a časové rozloženie';
 
+  @override
+  String get translation_title => 'Preklad';
+
+  @override
+  String get translation_enableTitle => 'Aktivovať preklad';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Prekladajte prichádzajúce správy a umožnite ich preklad pred odoslaním.';
+
+  @override
+  String get translation_composerTitle => 'Preložte pred odeslaním';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Riadi výchoce stav ikony pre preklad, ktorú používa program.';
+
+  @override
+  String get translation_targetLanguage => 'Cieľový jazyk';
+
+  @override
+  String get translation_useAppLanguage => 'Použite jazyk aplikácie';
+
+  @override
+  String get translation_downloadedModelLabel => 'Stiahnutý model';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Prednastavený model od Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel =>
+      'Odkaz na manuál (v elektronickej forme)';
+
+  @override
+  String get translation_downloadModel => 'Stiahnuť model';
+
+  @override
+  String get translation_downloading => 'Stiahnutie...';
+
+  @override
+  String get translation_working => 'Práca...';
+
+  @override
+  String get translation_stop => 'Zastavte';
+
+  @override
+  String get translation_mergingChunks =>
+      'Sliečenie stiahnutých častí do konečného súboru...';
+
+  @override
+  String get translation_downloadedModels => 'Stiahnuté modely';
+
+  @override
+  String get translation_deleteModel => 'Odstrániť model';
+
+  @override
+  String get translation_modelDownloaded => 'Model pre preklad bol stiahnutý.';
+
+  @override
+  String get translation_downloadStopped => 'Stiahnutie bolo prerušené.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Neúspešné stiahnutie: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst =>
+      'Najprv zadajte URL pre konkrétny model.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Zobraziť PIN';
 
@@ -3558,10 +3632,35 @@ class AppLocalizationsSk extends AppLocalizations {
   String get scanner_linuxPairingHidePin => 'Skryť PIN';
 
   @override
-  String get scanner_linuxPairingPinTitle => 'Bluetooth párovací PIN';
+  String get scanner_linuxPairingPinTitle => 'PIN pre párovanie cez Bluetooth';
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return 'Zadajte PIN pre $deviceName (ak nie je, nechajte prázdne).';
+    return 'Zadajte PIN pre $deviceName (ak neexistuje, nechajte prázdne).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Preklad textu';
+
+  @override
+  String get translation_translateBeforeSending => 'Preložte pred odeslaním';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Správy budú preložené, než budú odoslané.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Posielajte správy v pôvodnej písanom jazyku.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Preložte do $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Možnosti prekladania';
+
+  @override
+  String get translation_systemLanguage => 'Jazyk systému';
 }

lib/l10n/app_localizations_sl.dart

@@ -1224,6 +1224,14 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get chat_noMessages => 'Še ni sporočil.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Pošlji sporočilo $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Pošlji sporočilo za začetek.';
 
@@ -1244,11 +1252,6 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get chat_location => 'Lokacija';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Pošlji sporočilo $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Vnesi sporočilo...';
 
@@ -3556,6 +3559,76 @@ class AppLocalizationsSl extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Število šumov, RSSI, SNR in čas, ki ga je napolnila oprema';
 
+  @override
+  String get translation_title => 'Prevod';
+
+  @override
+  String get translation_enableTitle => 'Omogočite prevod';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Prevedite vstopne sporočila in omogočite predhodno prevajanje.';
+
+  @override
+  String get translation_composerTitle => 'Preprištejte, preden pošljete';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Ureja privzeto stanje ikone za prevod, ki jo uporablja avtor.';
+
+  @override
+  String get translation_targetLanguage => 'Ciljna jezika';
+
+  @override
+  String get translation_useAppLanguage => 'Uporabite jezik aplikacije';
+
+  @override
+  String get translation_downloadedModelLabel => 'Naložen model';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Prednastavljeni model Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel => 'URL za ročni model';
+
+  @override
+  String get translation_downloadModel => 'Prenesite model';
+
+  @override
+  String get translation_downloading => 'Izvajanje...';
+
+  @override
+  String get translation_working => 'Delo...';
+
+  @override
+  String get translation_stop => 'Prekliji';
+
+  @override
+  String get translation_mergingChunks =>
+      'Sklapljanje prenesenih delov v končni datoteko...';
+
+  @override
+  String get translation_downloadedModels => 'Naloženi modeli';
+
+  @override
+  String get translation_deleteModel => 'Izbrisati model';
+
+  @override
+  String get translation_modelDownloaded =>
+      'Model za prevajanje je bil naložen.';
+
+  @override
+  String get translation_downloadStopped => 'Prenos je bil prekinjen.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Izgovoritev ni bila uspešna: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Najprej vnesite URL model.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Prikaži PIN';
 
@@ -3569,4 +3642,30 @@ class AppLocalizationsSl extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Vnesite PIN za $deviceName (pustite prazno, če ga ni).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Prevod sporočila';
+
+  @override
+  String get translation_translateBeforeSending =>
+      'Preprištejte, preden pošljete';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Vsebina sporočil bo prevedena, preden jih pošljemo.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Pošljite sporočila v originalnem tipkanem jeziku.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Prevesti v $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Možnosti prevoda';
+
+  @override
+  String get translation_systemLanguage => 'Jezik sistema';
 }

lib/l10n/app_localizations_sv.dart

@@ -1217,6 +1217,14 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get chat_noMessages => 'Inga meddelanden ännu';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Skicka ett meddelande till $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart =>
       'Skicka ett meddelande för att komma igång';
@@ -1238,11 +1246,6 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get chat_location => 'Plats';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Skicka ett meddelande till $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Skriv ett meddelande...';
 
@@ -3533,6 +3536,77 @@ class AppLocalizationsSv extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Bakgrundsnivå, RSSI, SNR och tillgänglig tid';
 
+  @override
+  String get translation_title => 'Översättning';
+
+  @override
+  String get translation_enableTitle => 'Aktivera översättning';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Översätt inkommande meddelanden och möjliggör översättning före avsändning.';
+
+  @override
+  String get translation_composerTitle => 'Översätt innan du skickar';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Styr standardtillståndet för kompositorns översättningsikon.';
+
+  @override
+  String get translation_targetLanguage => 'Målmedvetet språk';
+
+  @override
+  String get translation_useAppLanguage => 'Använd appens språk';
+
+  @override
+  String get translation_downloadedModelLabel => 'Nedladdad modell';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Fördefinierat Hugging Face-modell';
+
+  @override
+  String get translation_manualUrlLabel => 'Manualens URL';
+
+  @override
+  String get translation_downloadModel => 'Ladda ner modellen';
+
+  @override
+  String get translation_downloading => 'Nedladdning...';
+
+  @override
+  String get translation_working => 'Arbeta...';
+
+  @override
+  String get translation_stop => 'Stopp';
+
+  @override
+  String get translation_mergingChunks =>
+      'Slå samman de nedladdade delarna till en slutlig fil...';
+
+  @override
+  String get translation_downloadedModels => 'Nedladdade modeller';
+
+  @override
+  String get translation_deleteModel => 'Ta bort modell';
+
+  @override
+  String get translation_modelDownloaded =>
+      'Översättningsmodellen har laddats ner.';
+
+  @override
+  String get translation_downloadStopped => 'Nedladdningen avbruten.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Nedladdning misslyckades: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst =>
+      'Ange först en URL för en specifik modell.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Visa PIN';
 
@@ -3546,4 +3620,29 @@ class AppLocalizationsSv extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Ange PIN för $deviceName (lämna tomt om ingen).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Meddelandets översättning';
+
+  @override
+  String get translation_translateBeforeSending => 'Översätt innan du skickar';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Meddelandena kommer att översättas innan de skickas.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Skicka meddelanden på det ursprungliga, stavade språket.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Översätt till $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Översättningsalternativ';
+
+  @override
+  String get translation_systemLanguage => 'Språk för systemet';
 }

lib/l10n/app_localizations_uk.dart

@@ -1230,6 +1230,14 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get chat_noMessages => 'Поки немає повідомлень.';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return 'Надіслати повідомлення $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => 'Надішліть повідомлення, щоб почати';
 
@@ -1250,11 +1258,6 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get chat_location => 'Розташування';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return 'Надіслати повідомлення $contactName';
-  }
-
   @override
   String get chat_typeMessage => 'Введіть повідомлення...';
 
@@ -3590,6 +3593,76 @@ class AppLocalizationsUk extends AppLocalizations {
   String get radioStats_settingsSubtitle =>
       'Рівень шуму, RSSI, SNR та час, протягом якого пристрій використовує радіоканал.';
 
+  @override
+  String get translation_title => 'Переклад';
+
+  @override
+  String get translation_enableTitle => 'Увімкнути переклад';
+
+  @override
+  String get translation_enableSubtitle =>
+      'Перекладати отримані повідомлення та дозволяти попередній переклад перед відправкою.';
+
+  @override
+  String get translation_composerTitle => 'Перекладіть перед відправкою';
+
+  @override
+  String get translation_composerSubtitle =>
+      'Контролює стан ікон перекладу, який використовується за замовчуванням.';
+
+  @override
+  String get translation_targetLanguage => 'Цільова мова';
+
+  @override
+  String get translation_useAppLanguage => 'Використовуйте мову додатку';
+
+  @override
+  String get translation_downloadedModelLabel => 'Завантажений шаблон';
+
+  @override
+  String get translation_presetModelLabel =>
+      'Заздалегідь налаштований модель від Hugging Face';
+
+  @override
+  String get translation_manualUrlLabel =>
+      'Посилання на веб-сторінку з інструкцією';
+
+  @override
+  String get translation_downloadModel => 'Завантажити модель';
+
+  @override
+  String get translation_downloading => 'Завантаження...';
+
+  @override
+  String get translation_working => 'Працюю...';
+
+  @override
+  String get translation_stop => 'Припинити';
+
+  @override
+  String get translation_mergingChunks =>
+      'Об\'єднання завантажених фрагментів у кінцевий файл...';
+
+  @override
+  String get translation_downloadedModels => 'Завантажені моделі';
+
+  @override
+  String get translation_deleteModel => 'Видалити модель';
+
+  @override
+  String get translation_modelDownloaded => 'Модель перекладу завантажена.';
+
+  @override
+  String get translation_downloadStopped => 'Завантаження призупинено.';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return 'Не вдалося завантажити: $error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => 'Спочатку введіть URL моделі.';
+
   @override
   String get scanner_linuxPairingShowPin => 'Показати PIN';
 
@@ -3603,4 +3676,30 @@ class AppLocalizationsUk extends AppLocalizations {
   String scanner_linuxPairingPinPrompt(String deviceName) {
     return 'Введіть PIN для $deviceName (залиште порожнім, якщо його немає).';
   }
+
+  @override
+  String get translation_messageTranslation => 'Переклад повідомлення';
+
+  @override
+  String get translation_translateBeforeSending =>
+      'Перекладіть перед відправкою';
+
+  @override
+  String get translation_composerEnabledHint =>
+      'Повідомлення будуть перекладені перед відправленням.';
+
+  @override
+  String get translation_composerDisabledHint =>
+      'Надсилайте повідомлення, використовуючи оригінальний текстовий формат.';
+
+  @override
+  String translation_translateTo(String language) {
+    return 'Перекласти на $language';
+  }
+
+  @override
+  String get translation_translationOptions => 'Варіанти перекладу';
+
+  @override
+  String get translation_systemLanguage => 'Мова системи';
 }

lib/l10n/app_localizations_zh.dart

@@ -1161,6 +1161,14 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get chat_noMessages => '暂无消息';
 
+  @override
+  String get chat_sendMessage => 'Send message';
+
+  @override
+  String chat_sendMessageTo(String contactName) {
+    return '发送消息给 $contactName';
+  }
+
   @override
   String get chat_sendMessageToStart => '发送消息开始对话';
 
@@ -1180,11 +1188,6 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get chat_location => '位置';
 
-  @override
-  String chat_sendMessageTo(String contactName) {
-    return '发送消息给 $contactName';
-  }
-
   @override
   String get chat_typeMessage => '输入消息...';
 
@@ -3306,7 +3309,72 @@ class AppLocalizationsZh extends AppLocalizations {
   String get radioStats_settingsSubtitle => '噪声水平、RSSI、信噪比和空中时间';
 
   @override
-  String get scanner_linuxPairingShowPin => '显示 PIN码';
+  String get translation_title => '翻译';
+
+  @override
+  String get translation_enableTitle => '启用翻译功能';
+
+  @override
+  String get translation_enableSubtitle => '翻译收到的消息，并允许在发送前进行翻译。';
+
+  @override
+  String get translation_composerTitle => '在发送之前进行翻译';
+
+  @override
+  String get translation_composerSubtitle => '控制作曲家翻译图标的默认状态。';
+
+  @override
+  String get translation_targetLanguage => '目标语言';
+
+  @override
+  String get translation_useAppLanguage => '使用应用程序语言';
+
+  @override
+  String get translation_downloadedModelLabel => '下载的模型';
+
+  @override
+  String get translation_presetModelLabel => '预设的 Hugging Face 模型';
+
+  @override
+  String get translation_manualUrlLabel => '手动模型网址';
+
+  @override
+  String get translation_downloadModel => '下载模型';
+
+  @override
+  String get translation_downloading => '正在下载...';
+
+  @override
+  String get translation_working => '工作中...';
+
+  @override
+  String get translation_stop => '停止';
+
+  @override
+  String get translation_mergingChunks => '将下载的片段合并成最终文件...';
+
+  @override
+  String get translation_downloadedModels => '下载的模型';
+
+  @override
+  String get translation_deleteModel => '删除模型';
+
+  @override
+  String get translation_modelDownloaded => '翻译模型已下载。';
+
+  @override
+  String get translation_downloadStopped => '下载已停止。';
+
+  @override
+  String translation_downloadFailed(String error) {
+    return '下载失败：$error';
+  }
+
+  @override
+  String get translation_enterUrlFirst => '首先，请输入模型的 URL。';
+
+  @override
+  String get scanner_linuxPairingShowPin => '显示PIN码';
 
   @override
   String get scanner_linuxPairingHidePin => '隐藏 PIN';
@@ -3316,6 +3384,29 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String scanner_linuxPairingPinPrompt(String deviceName) {
-    return '输入 $deviceName 的 PIN（如果没有，请留空）。';
+    return '输入 $deviceName 的 PIN 码（如果为空，则留空）。';
   }
+
+  @override
+  String get translation_messageTranslation => '消息翻译';
+
+  @override
+  String get translation_translateBeforeSending => '在发送前进行翻译';
+
+  @override
+  String get translation_composerEnabledHint => '消息将在发送前进行翻译。';
+
+  @override
+  String get translation_composerDisabledHint => '使用原始的打字方式发送消息。';
+
+  @override
+  String translation_translateTo(String language) {
+    return '翻译成 $language';
+  }
+
+  @override
+  String get translation_translationOptions => '翻译选项';
+
+  @override
+  String get translation_systemLanguage => '系统语言';
 }

lib/l10n/app_nl.arb

@@ -84,7 +84,7 @@
   "settings_appSettings": "App Instellingen",
   "settings_appSettingsSubtitle": "Notificaties, berichten en kaartinstellingen",
   "settings_nodeSettings": "Node Instellingen",
-  "settings_nodeName": "Node Naam",
+  "settings_nodeName": "Nodenaam",
   "settings_nodeNameNotSet": "Niet ingesteld",
   "settings_nodeNameHint": "Voer nodenaam in",
   "settings_nodeNameUpdated": "Naam bijgewerkt",
@@ -107,13 +107,13 @@
   "settings_sendAdvertisement": "Verzend Advertentie",
   "settings_sendAdvertisementSubtitle": "Nu aanwezigheid uitzenden",
   "settings_advertisementSent": "Advertentie verzonden",
-  "settings_syncTime": "Synchronisatie Tijd",
+  "settings_syncTime": "Tijd Synchroniseren",
   "settings_syncTimeSubtitle": "Stel de apparaatklok in op de tijd van de telefoon.",
   "settings_timeSynchronized": "Tijdsynchronisatie",
   "settings_refreshContacts": "Contacten vernieuwen",
   "settings_refreshContactsSubtitle": "Contactlijst opnieuw laden van het apparaat",
   "settings_rebootDevice": "Apparaat opnieuw opstarten",
-  "settings_rebootDeviceSubtitle": "Herstart het MeshCore apparaat",
+  "settings_rebootDeviceSubtitle": "Herstart het MeshCore-apparaat",
   "settings_rebootDeviceConfirm": "Ben je er zeker van dat je het apparaat opnieuw wilt opstarten? Je wordt losgekoppeld.",
   "settings_debug": "Debug",
   "settings_bleDebugLog": "BLE Debug Log",
@@ -145,7 +145,7 @@
   "settings_bandwidth": "Bandbreedte",
   "settings_spreadingFactor": "Spreadsnelheid",
   "settings_codingRate": "Codeertarief",
-  "settings_txPower": "TX Vermogen (dBm)",
+  "settings_txPower": "TX-Vermogen (dBm)",
   "settings_txPowerHelper": "0 - 22",
   "settings_txPowerInvalid": "Ongeldige TX-vermogen (0-22 dBm)",
   "settings_error": "Fout: {message}",
@@ -232,11 +232,11 @@
   "appSettings_mapTimeFilter": "Filter tijd op kaart",
   "appSettings_showNodesDiscoveredWithin": "Toon nodes ontdekt binnen:",
   "appSettings_allTime": "Altijd",
-  "appSettings_lastHour": "Laat uur",
-  "appSettings_last6Hours": "laatste 6 uur",
-  "appSettings_last24Hours": "De laatste 24 uur",
-  "appSettings_lastWeek": "Laatste week",
-  "appSettings_offlineMapCache": "Offline Kaarten Cache",
+  "appSettings_lastHour": "Afgelopen uur",
+  "appSettings_last6Hours": "Afgelopen 6 uur",
+  "appSettings_last24Hours": "Afgelopen 24 uur",
+  "appSettings_lastWeek": "Afgelopen week",
+  "appSettings_offlineMapCache": "Offline Kaartcache",
   "appSettings_noAreaSelected": "Geen gebied geselecteerd",
   "appSettings_areaSelectedZoom": "Geselecteerd gebied (zoom {minZoom}-{maxZoom})",
   "@appSettings_areaSelectedZoom": {
@@ -682,7 +682,7 @@
   "map_showSharedMarkers": "Toon gedeelde markeringen",
   "map_lastSeenTime": "Laatste Bekeken Tijd",
   "map_sharedPin": "Gedeelde pin",
-  "map_joinRoom": "Sluit Kamer",
+  "map_joinRoom": "Kamer Toetreden",
   "map_manageRepeater": "Beheer Repeater",
   "mapCache_title": "Offline Kaarten Cache",
   "mapCache_selectAreaFirst": "Select een gebied om eerst in de cache op te slaan",
@@ -878,7 +878,7 @@
   "path_tooLong": "Pad is te lang. Maximaal 64 sprongen zijn toegestaan.",
   "path_setPath": "Stel Pad in",
   "repeater_management": "Beheer Repeaters",
-  "repeater_managementTools": "Beheerinstrumenten",
+  "repeater_managementTools": "Beheerfuncties",
   "repeater_status": "Status",
   "repeater_statusSubtitle": "Status, statistieken en buren bekijken",
   "repeater_telemetry": "Telemetry",
@@ -912,8 +912,8 @@
   "repeater_lastRssi": "Laatste RSSI",
   "repeater_lastSnr": "Laatste SNR",
   "repeater_noiseFloor": "Ruisvloer",
-  "repeater_txAirtime": "TX Airtime",
-  "repeater_rxAirtime": "RX Airtime",
+  "repeater_txAirtime": "TX-zendtijd",
+  "repeater_rxAirtime": "RX-zendtijd",
   "repeater_packetStatistics": "Pakketstatistieken",
   "repeater_sent": "Verzonden",
   "repeater_received": "Ontvangen",
@@ -982,14 +982,14 @@
       }
     }
   },
-  "repeater_settingsTitle": "Repeater Instellingen",
+  "repeater_settingsTitle": "Repeaterinstellingen",
   "repeater_basicSettings": "Basisinstellingen",
   "repeater_repeaterName": "Repeaternaam",
-  "repeater_repeaterNameHelper": "Weergave naam voor deze repeater",
+  "repeater_repeaterNameHelper": "Weergavenaam voor deze repeater",
   "repeater_adminPassword": "Admin wachtwoord",
-  "repeater_adminPasswordHelper": "Volledige toegangspaswoord",
-  "repeater_guestPassword": "Wachtwoord Gast",
-  "repeater_guestPasswordHelper": "Leesbeheer wachtwoord",
+  "repeater_adminPasswordHelper": "Wachtwoord administratortoegang",
+  "repeater_guestPassword": "Gast wachtwoord",
+  "repeater_guestPasswordHelper": "Wachtwoord gasttoegen",
   "repeater_radioSettings": "Radio Instellingen",
   "repeater_frequencyMhz": "Frequentie (MHz)",
   "repeater_frequencyHelper": "300-2500 MHz",
@@ -998,7 +998,7 @@
   "repeater_bandwidth": "Bandbreedte",
   "repeater_spreadingFactor": "Spreidingsfactor",
   "repeater_codingRate": "Codeertarief",
-  "repeater_locationSettings": "Locatie Instellingen",
+  "repeater_locationSettings": "Locatie-instellingen",
   "repeater_latitude": "Breedtegraad",
   "repeater_latitudeHelper": "Graadseconden (bijv. 37.7749)",
   "repeater_longitude": "Lengtegraad",
@@ -1008,9 +1008,9 @@
   "repeater_packetForwardingSubtitle": "Repeater instellen om pakketten door te sturen",
   "repeater_guestAccess": "Toegang voor Gasten",
   "repeater_guestAccessSubtitle": "Toegestane leesbeheer toegang voor gasten.",
-  "repeater_privacyMode": "Privacy Modus",
+  "repeater_privacyMode": "Privacymodus",
   "repeater_privacyModeSubtitle": "Naam/locatie verbergen in advertenties",
-  "repeater_advertisementSettings": "Advertentie Instellingen",
+  "repeater_advertisementSettings": "Advertentie-instellingen",
   "repeater_localAdvertInterval": "Lokale Advertentie Interval",
   "repeater_localAdvertIntervalMinutes": "{minutes} minuten",
   "@repeater_localAdvertIntervalMinutes": {
@@ -1073,7 +1073,7 @@
   "repeater_refreshLocationSettings": "Instellingen Locatie Vernieuwen",
   "repeater_refreshPacketForwarding": "Vernieuwen Pakket Doorversturing",
   "repeater_refreshGuestAccess": "Toegang Gast Vernieuwen",
-  "repeater_refreshPrivacyMode": "Privacy Mode vernieuwen",
+  "repeater_refreshPrivacyMode": "Privacymode vernieuwen",
   "repeater_refreshAdvertisementSettings": "Instellingen Advertentie Bijwerken",
   "repeater_refreshed": "{label} is vernieuwd",
   "@repeater_refreshed": {
@@ -1094,8 +1094,8 @@
   "repeater_cliTitle": "Repeater CLI",
   "repeater_debugNextCommand": "Debug Volgende Commando",
   "repeater_commandHelp": "Help",
-  "repeater_clearHistory": "Verwijder Geschiedenis",
-  "repeater_noCommandsSent": "Geen commando's verzonden nog.",
+  "repeater_clearHistory": "Geschiedenis Verwijderen",
+  "repeater_noCommandsSent": "Nog geen commando's verzonden.",
   "repeater_typeCommandOrUseQuick": "Typ een opdracht hieronder of gebruik snelle commando's",
   "repeater_enterCommandHint": "Voer bevel in...",
   "repeater_previousCommand": "Vorige opdracht",
@@ -1110,14 +1110,14 @@
       }
     }
   },
-  "repeater_cliQuickGetName": "Haal Naam op",
-  "repeater_cliQuickGetRadio": "Radio ontvangen",
-  "repeater_cliQuickGetTx": "Krijg TX",
-  "repeater_cliQuickNeighbors": "Buren",
-  "repeater_cliQuickVersion": "Versie",
-  "repeater_cliQuickAdvertise": "Advertenties",
-  "repeater_cliQuickClock": "Tijd",
-  "repeater_cliHelpAdvert": "Verstuurt een advertentiepakket",
+  "repeater_cliQuickGetName": "Naam opvragen",
+  "repeater_cliQuickGetRadio": "Radio-instellingen opvragen",
+  "repeater_cliQuickGetTx": "TX opvragen",
+  "repeater_cliQuickNeighbors": "Buren opvragen",
+  "repeater_cliQuickVersion": "Versie opvragen",
+  "repeater_cliQuickAdvertise": "Advertenties opvragen",
+  "repeater_cliQuickClock": "Tijd opvragen",
+  "repeater_cliHelpAdvert": "Advertentie uitzenden",
   "repeater_cliHelpReboot": "Herstart het apparaat. (let op, je krijgt mogelijk een 'Timeout', wat normaal is)",
   "repeater_cliHelpClock": "Toont de huidige tijd per apparaat's klok.",
   "repeater_cliHelpPassword": "Stelt een nieuw beheerderswachtwoord in voor het apparaat.",
@@ -1203,7 +1203,7 @@
   },
   "telemetry_batteryLabel": "Batterij",
   "telemetry_voltageLabel": "Spanning",
-  "telemetry_mcuTemperatureLabel": "MCU Temperatuur",
+  "telemetry_mcuTemperatureLabel": "MCU-temperatuur",
   "telemetry_temperatureLabel": "Temperatuur",
   "telemetry_currentLabel": "Huidig",
   "telemetry_batteryValue": "{percent}% / {volts}V",
@@ -1346,7 +1346,7 @@
   "listFilter_tooltip": "Filteren en sorteren",
   "listFilter_sortBy": "Sorteren door",
   "listFilter_latestMessages": "Recente berichten",
-  "listFilter_heardRecently": "Hoor je onlangs",
+  "listFilter_heardRecently": "Recent gezien",
   "listFilter_az": "A-Z",
   "listFilter_filters": "Filters",
   "listFilter_all": "Alles",
@@ -1363,20 +1363,20 @@
     }
   },
   "repeater_neighbors": "Buren",
-  "repeater_neighborsSubtitle": "Bekijk nul hops buren.",
+  "repeater_neighborsSubtitle": "Bekijk nul-hopsburen.",
   "neighbors_receivedData": "Ontvangen Buurdata",
   "neighbors_requestTimedOut": "Buren vragen om tijdelijk uitgeschakeld.",
   "neighbors_errorLoading": "Fout bij het laden van buren: {error}",
-  "neighbors_repeatersNeighbors": "Herhalingen Buren",
+  "neighbors_repeatersNeighbors": "Repeatbburen",
   "neighbors_noData": "Geen gegevens van buren beschikbaar.",
   "channels_createPrivateChannelDesc": "Beveiligd met een geheime sleutel.",
-  "channels_createPrivateChannel": "Maak een Privé Kanaal",
-  "channels_joinPrivateChannel": "Sluit een Privé Kanaal aan",
-  "channels_joinPrivateChannelDesc": "Handmatig een geheime sleutel invoeren.",
-  "channels_joinPublicChannel": "Sluit het Open Kanaal",
-  "channels_joinPublicChannelDesc": "Iedereen kan dit kanaal aanmelden.",
-  "channels_joinHashtagChannel": "Sluit een Hashtag Kanaal",
-  "channels_joinHashtagChannelDesc": "Iedereen kan lid worden van hashtag-kanalen.",
+  "channels_createPrivateChannel": "PrivéKanaal Aanmaken",
+  "channels_joinPrivateChannel": "PrivéKanaal Toetreden",
+  "channels_joinPrivateChannelDesc": "Voer handmatig een geheime sleutel in.",
+  "channels_joinPublicChannel": "Publiek Kanaal Toetreden",
+  "channels_joinPublicChannelDesc": "Iedereen kan toetreden tot dit kanaal.",
+  "channels_joinHashtagChannel": "Hashtag-kanaal Aanmaken",
+  "channels_joinHashtagChannelDesc": "Iedereen kan toetreden tot hashtag-kanalen.",
   "channels_scanQrCode": "Scan een QR-code",
   "channels_scanQrCodeComingSoon": "Komt later",
   "channels_enterHashtag": "Voer hashtag in",
@@ -1574,7 +1574,7 @@
   "contacts_zeroHopContactAdvertSent": "Contact verzonden via advertentie",
   "contacts_contactAdvertCopied": "Reclame gekopieerd naar Klembord.",
   "contacts_contactAdvertCopyFailed": "Kopiëren van advertentie naar Clipboard is mislukt.",
-  "contacts_ShareContact": "Kontakt naar Klembord kopiëren",
+  "contacts_ShareContact": "Contact naar Klembord kopiëren",
   "contacts_ShareContactZeroHop": "Contact delen via advertentie",
   "contacts_zeroHopContactAdvertFailed": "Mislukt om contact te verzenden",
   "notification_activityTitle": "MeshCore Activiteit",
@@ -1612,8 +1612,8 @@
   "snrIndicator_lastSeen": "Laatst gezien",
   "snrIndicator_nearByRepeaters": "Nabije herhalingseenheden",
   "chat_ShowAllPaths": "Toon alle paden",
-  "settings_clientRepeat": "Herhalen: Afgekoppeld",
-  "settings_clientRepeatSubtitle": "Laat dit apparaat de mesh-pakketten opnieuw verzenden voor andere apparaten.",
+  "settings_clientRepeat": "Off-Grid Herhalen",
+  "settings_clientRepeatSubtitle": "Laat dit apparaat de berichten van andere apparaten doorsturen.",
   "settings_clientRepeatFreqWarning": "Om een signaal buiten het netwerk te versturen, zijn frequenties van 433, 869 of 918 MHz vereist.",
   "settings_aboutOpenMeteoAttribution": "LOS-hoogtegegevens: Open-Meteo (CC BY 4.0)",
   "appSettings_unitsTitle": "Eenheden",
@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Radio-statistieken ophalen…",
   "radioStats_settingsTile": "Statistieken over radio",
   "radioStats_settingsSubtitle": "Ruimtelijke ruis, RSSI, SNR en beschikbare tijd",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableSubtitle": "Vertaal inkomende berichten en maak het mogelijk om berichten vooraf te vertalen.",
+  "translation_enableTitle": "Activeer vertaling",
+  "translation_title": "Vertaling",
+  "translation_composerTitle": "Vertaal voor verzending",
+  "translation_composerSubtitle": "Stelt de standaardstatus van het pictogram voor de vertaling van de componist in.",
+  "translation_useAppLanguage": "Gebruik de taal van de app",
+  "translation_targetLanguage": "Doeltaal",
+  "translation_downloadedModelLabel": "Gedownloade model",
+  "translation_presetModelLabel": "Voorgeprogrammeerd Hugging Face-model",
+  "translation_manualUrlLabel": "URL van de handleiding",
+  "translation_downloadModel": "Download het model",
+  "translation_downloading": "Downloaden...",
+  "translation_working": "Werken...",
+  "translation_mergingChunks": "Het samenvoegen van de gedownloade stukken tot één eindbestand...",
+  "translation_stop": "Stoppen",
+  "translation_downloadedModels": "Gedownloade modellen",
+  "translation_deleteModel": "Model verwijderen",
+  "translation_modelDownloaded": "Vertalingmodel gedownload.",
+  "translation_downloadStopped": "Download is afgebroken.",
+  "translation_downloadFailed": "Download mislukt: {error}",
+  "translation_enterUrlFirst": "Voer eerst een URL van een model in.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerDisabledHint": "Stuur berichten in de oorspronkelijke, getypte taal.",
+  "translation_translateBeforeSending": "Vertaal voor verzending",
+  "translation_composerEnabledHint": "De berichten worden vertaald voordat ze verzonden worden.",
+  "translation_messageTranslation": "Berichtvertaling",
+  "translation_translationOptions": "Opties voor vertaling",
+  "translation_systemLanguage": "Taal van het systeem",
+  "translation_translateTo": "Vertalen naar {language}",
   "scanner_linuxPairingShowPin": "Toon PIN",
   "scanner_linuxPairingHidePin": "PIN verbergen",
   "scanner_linuxPairingPinPrompt": "Voer PIN in voor {deviceName} (laat leeg als er geen is).",
   "scanner_linuxPairingPinTitle": "Bluetooth‑koppelings‑PIN",
   "repeater_cliQuickDiscovery": "Ontdek Buren",
   "repeater_cliQuickClockSync": "Kloksynchronisatie"
-}
+}

lib/l10n/app_pl.arb

@@ -163,7 +163,7 @@
   "appSettings_themeLight": "Jasne",
   "appSettings_themeDark": "Ciemny",
   "appSettings_language": "Język",
-  "appSettings_languageSystem": "Domyślny systemu",
+  "appSettings_languageSystem": "Domyślny systemowy",
   "appSettings_languageEn": "English",
   "appSettings_languageFr": "Français",
   "appSettings_languageEs": "Español",
@@ -1373,7 +1373,7 @@
     }
   },
   "repeater_neighbors": "Sąsiedzi",
-  "repeater_neighborsSubtitle": "Wyświetl sąsiedztwo zerowych hopów.",
+  "repeater_neighborsSubtitle": "Wyświetl sąsiadów zero-hop.",
   "neighbors_receivedData": "Otrzymano dane sąsiedztwa",
   "neighbors_requestTimedOut": "Sąsiedzi proszą o wyłączenie timingu.",
   "neighbors_errorLoading": "Błąd podczas ładowania sąsiadów: {error}",
@@ -1622,12 +1622,12 @@
   },
   "notification_receivedNewMessage": "Otrzymano nową wiadomość",
   "settings_gpxExportContacts": "Eksportuj towarzyszy do GPX",
-  "settings_gpxExportRepeaters": "Eksportuj przekaźniki / serwer pokojowy do GPX",
-  "settings_gpxExportRepeatersSubtitle": "Eksportuje przekaźniki / roomserver z lokalizacją do pliku GPX.",
+  "settings_gpxExportRepeaters": "Eksportuj przekaźniki / roomservery do GPX",
+  "settings_gpxExportRepeatersSubtitle": "Eksportuje przekaźniki / roomservery z lokalizacją do pliku GPX.",
   "settings_gpxExportSuccess": "Pomyślnie wyeksportowano plik GPX.",
   "settings_gpxExportNotAvailable": "Nie obsługiwane na Twoim urządzeniu/systemie operacyjnym",
   "settings_gpxExportError": "Wystąpił błąd podczas eksportowania.",
-  "settings_gpxExportRepeatersRoom": "Lokalizacje przekaźników i serwerów pokojowych",
+  "settings_gpxExportRepeatersRoom": "Lokalizacje przekaźników i roomserverów",
   "settings_gpxExportContactsSubtitle": "Eksportuje towarzyszy z lokalizacją do pliku GPX.",
   "settings_gpxExportAll": "Eksportuj wszystkie kontakty do GPX",
   "settings_gpxExportAllSubtitle": "Eksportuje wszystkie kontakty z lokalizacją do pliku GPX.",
@@ -1648,7 +1648,7 @@
   "scanner_bluetoothOff": "Bluetooth jest wyłączony",
   "scanner_enableBluetooth": "Włącz Bluetooth",
   "snrIndicator_lastSeen": "Ostatnio widziany",
-  "snrIndicator_nearByRepeaters": "Nadajniki w pobliżu",
+  "snrIndicator_nearByRepeaters": "Pobliskie przekaźniki",
   "chat_ShowAllPaths": "Pokaż wszystkie ścieżki",
   "settings_clientRepeatSubtitle": "Pozwól temu urządzeniu powtarzać pakiety danych dla innych urządzeń.",
   "settings_clientRepeat": "Powtórzenie: Niezależne od sieci",
@@ -1846,12 +1846,12 @@
   "contactsSettings_autoAddUsersSubtitle": "Pozwól towarzyszowi automatycznie dodawać znalezione użytkowników.",
   "contactsSettings_autoAddRepeatersTitle": "Automatyczne dodawanie przekaźników",
   "contactsSettings_autoAddRepeatersSubtitle": "Zezwól towarzyszowi na automatyczne dodawanie odkrytych przekaźników.",
-  "contactsSettings_autoAddRoomServersTitle": "Automatycznie dodaj serwery pokojowe",
+  "contactsSettings_autoAddRoomServersTitle": "Automatycznie dodaj roomservery",
   "contactsSettings_autoAddUsersTitle": "Automatycznie dodaj użytkowników",
   "settings_contactSettings": "Ustawienia kontaktów",
   "contactsSettings_otherTitle": "Inne ustawienia związane z kontaktami",
   "contactsSettings_autoAddTitle": "Automatyczne odnajdywanie",
-  "contactsSettings_autoAddRoomServersSubtitle": "Zezwól towarzyszowi na automatyczne dodawanie znalezionych serwerów pokojowych.",
+  "contactsSettings_autoAddRoomServersSubtitle": "Zezwól towarzyszowi na automatyczne dodawanie znalezionych roomserverów.",
   "contactsSettings_autoAddSensorsTitle": "Automatycznie dodaj czujniki",
   "discoveredContacts_searchHint": "Wyszukaj odkryte kontakty",
   "discoveredContacts_contactAdded": "Kontakt dodany",
@@ -1979,9 +1979,9 @@
   "appSettings_maxMessageRetriesSubtitle": "Liczba prób ponownego wysłania wiadomości przed oznaczaniem jej jako nieudanej",
   "path_routeWeight": "{weight}/{max}",
   "settings_telemetryModeUpdated": "Tryb telemetryczny zaktualizowany",
-  "settings_multiAck": "Wiele potwierdzeń: {value}",
-  "map_showOverlaps": "Nakładające się klucze powtarzalne",
-  "map_runTraceWithReturnPath": "Wróć z powrotem tą samą ścieżką",
+  "settings_multiAck": "Wielokrotne ACK: {value}",
+  "map_showOverlaps": "Nakładające się klucze przekaźników",
+  "map_runTraceWithReturnPath": "Wróć tą samą ścieżką",
   "@radioStats_noiseFloor": {
     "placeholders": {
       "noiseDbm": {
@@ -2045,6 +2045,34 @@
   "radioStats_stripWaiting": "Pobieranie danych dotyczących radia…",
   "radioStats_settingsTile": "Statystyki radiowe",
   "radioStats_settingsSubtitle": "Szum tła, RSSI, SNR oraz czas dostępny",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerTitle": "Przekład przed wysłaniem",
+  "translation_title": "Tłumaczenie",
+  "translation_enableTitle": "Włącz tłumaczenie",
+  "translation_enableSubtitle": "Tłumaczenie otrzymywanych wiadomości oraz umożliwienie tłumaczenia przed wysłaniem.",
+  "translation_composerSubtitle": "Kontroluje domyślny stan ikony tłumaczenia w edytorze.",
+  "translation_targetLanguage": "Język docelowy",
+  "translation_useAppLanguage": "Użyj języka aplikacji",
+  "translation_downloadedModelLabel": "Pobudowany model",
+  "translation_presetModelLabel": "Wspólny model Hugging Face",
+  "translation_manualUrlLabel": "Adres URL do wersji manualnej",
+  "translation_downloadModel": "Pobierz model",
+  "translation_downloading": "Pobieranie...",
+  "translation_working": "Praca...",
+  "translation_stop": "Zatrzymaj się",
+  "translation_mergingChunks": "Scalanie pobranych fragmentów w jeden plik końcowy...",
+  "translation_downloadedModels": "Pobrane modele",
+  "translation_deleteModel": "Usuń model",
+  "translation_modelDownloaded": "Model tłumaczenia został pobrany.",
+  "translation_downloadStopped": "Pobieranie zakończone.",
+  "translation_downloadFailed": "Nie udało się pobrać: {error}",
+  "translation_enterUrlFirst": "Najpierw wprowadź adres URL modelu.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2052,6 +2080,20 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerEnabledHint": "Komunikaty zostaną przetłumaczone przed wysłaniem.",
+  "translation_translateBeforeSending": "Przekład przed wysłaniem",
+  "translation_composerDisabledHint": "Wysyłaj wiadomości w oryginalnym, wpisanym formacie.",
+  "translation_messageTranslation": "Tłumaczenie wiadomości",
+  "translation_translationOptions": "Opcje tłumaczenia",
+  "translation_systemLanguage": "Język systemu",
+  "translation_translateTo": "Tłumacz na {language}",
   "scanner_linuxPairingShowPin": "Pokaż PIN",
   "scanner_linuxPairingHidePin": "Ukryj PIN",
   "scanner_linuxPairingPinPrompt": "Wprowadź kod PIN dla {deviceName} (pozostaw puste, jeśli brak).",

lib/l10n/app_pt.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Obtendo estatísticas de rádio…",
   "radioStats_settingsTile": "Estatísticas de rádio",
   "radioStats_settingsSubtitle": "Nível de ruído, RSSI, SNR e tempo de transmissão",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerTitle": "Traduza antes de enviar",
+  "translation_enableSubtitle": "Traduzir mensagens recebidas e permitir a tradução antes do envio.",
+  "translation_enableTitle": "Ativar a tradução",
+  "translation_title": "Tradução",
+  "translation_composerSubtitle": "Controla o estado padrão do ícone de tradução do compositor.",
+  "translation_targetLanguage": "Língua-alvo",
+  "translation_useAppLanguage": "Utilize o idioma da aplicação",
+  "translation_downloadedModelLabel": "Modelo baixado",
+  "translation_presetModelLabel": "Modelo pré-definido da Hugging Face",
+  "translation_manualUrlLabel": "URL do modelo manual",
+  "translation_downloading": "Baixando...",
+  "translation_downloadModel": "Baixar modelo",
+  "translation_working": "Trabalhando...",
+  "translation_stop": "Pare",
+  "translation_mergingChunks": "Combinando os fragmentos baixados em um único arquivo...",
+  "translation_downloadedModels": "Modelos baixados",
+  "translation_deleteModel": "Excluir modelo",
+  "translation_modelDownloaded": "Modelo de tradução baixado.",
+  "translation_downloadStopped": "Download interrompido.",
+  "translation_downloadFailed": "Falha na descarga: {error}",
+  "translation_enterUrlFirst": "Insira primeiro a URL do modelo.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_messageTranslation": "Tradução da mensagem",
+  "translation_translateBeforeSending": "Traduzir antes de enviar",
+  "translation_composerEnabledHint": "As mensagens serão traduzidas antes de serem enviadas.",
+  "translation_composerDisabledHint": "Envie mensagens no idioma original, conforme digitado.",
+  "translation_translateTo": "Traduzir para {language}",
+  "translation_translationOptions": "Opções de tradução",
+  "translation_systemLanguage": "Idioma do sistema",
   "scanner_linuxPairingShowPin": "Mostrar PIN",
   "scanner_linuxPairingHidePin": "Ocultar PIN",
   "scanner_linuxPairingPinPrompt": "Insira o PIN para {deviceName} (deixe em branco se não houver).",
   "scanner_linuxPairingPinTitle": "PIN de emparelhamento Bluetooth",
   "repeater_cliQuickClockSync": "Sincronização do Relógio",
   "repeater_cliQuickDiscovery": "Descobrir Vizinhos"
-}
+}

lib/l10n/app_ru.arb

@@ -1247,6 +1247,34 @@
   "radioStats_stripWaiting": "Получение данных о радио…",
   "radioStats_settingsTile": "Статистика радиовещания",
   "radioStats_settingsSubtitle": "Уровень шума, RSSI, SNR и время передачи",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableSubtitle": "Переводить входящие сообщения и позволять предварительный перевод перед отправкой.",
+  "translation_composerTitle": "Переводить перед отправкой",
+  "translation_title": "Перевод",
+  "translation_enableTitle": "Включить перевод",
+  "translation_composerSubtitle": "Управляет исходным состоянием значка перевода, предоставляемого редактором.",
+  "translation_targetLanguage": "Целевой язык",
+  "translation_useAppLanguage": "Используйте язык приложения",
+  "translation_downloadedModelLabel": "Загруженная модель",
+  "translation_presetModelLabel": "Предопределенная модель от Hugging Face",
+  "translation_manualUrlLabel": "Ссылка на руководство",
+  "translation_downloadModel": "Скачать модель",
+  "translation_downloading": "Загрузка...",
+  "translation_stop": "Прекратите",
+  "translation_working": "Работа...",
+  "translation_mergingChunks": "Объединение скачанных фрагментов в один финальный файл...",
+  "translation_downloadedModels": "Загруженные модели",
+  "translation_deleteModel": "Удалить модель",
+  "translation_modelDownloaded": "Модель перевода загружена.",
+  "translation_downloadStopped": "Процесс загрузки был прерван.",
+  "translation_downloadFailed": "Не удалось скачать: {error}",
+  "translation_enterUrlFirst": "Сначала введите URL модели.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -1254,6 +1282,20 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_translateBeforeSending": "Перевести перед отправкой",
+  "translation_composerEnabledHint": "Сообщения будут переведены перед отправкой.",
+  "translation_messageTranslation": "Перевод сообщения",
+  "translation_composerDisabledHint": "Отправляйте сообщения на языке, в котором они были изначально набраны.",
+  "translation_translateTo": "Перевести на {language}",
+  "translation_translationOptions": "Варианты перевода",
+  "translation_systemLanguage": "Язык системы",
   "scanner_linuxPairingShowPin": "Показать PIN",
   "scanner_linuxPairingPinPrompt": "Введите PIN‑код для {deviceName} (оставьте пустым, если нет).",
   "scanner_linuxPairingHidePin": "Скрыть PIN",

lib/l10n/app_sk.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Získavanie údajov o rádiu…",
   "radioStats_settingsTile": "Štatistiky rádiových vysielaní",
   "radioStats_settingsSubtitle": "Úroveň hluku, RSSI, SNR a časové rozloženie",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableSubtitle": "Prekladajte prichádzajúce správy a umožnite ich preklad pred odoslaním.",
+  "translation_enableTitle": "Aktivovať preklad",
+  "translation_composerTitle": "Preložte pred odeslaním",
+  "translation_title": "Preklad",
+  "translation_composerSubtitle": "Riadi výchoce stav ikony pre preklad, ktorú používa program.",
+  "translation_targetLanguage": "Cieľový jazyk",
+  "translation_useAppLanguage": "Použite jazyk aplikácie",
+  "translation_downloadedModelLabel": "Stiahnutý model",
+  "translation_presetModelLabel": "Prednastavený model od Hugging Face",
+  "translation_manualUrlLabel": "Odkaz na manuál (v elektronickej forme)",
+  "translation_downloadModel": "Stiahnuť model",
+  "translation_downloading": "Stiahnutie...",
+  "translation_working": "Práca...",
+  "translation_stop": "Zastavte",
+  "translation_mergingChunks": "Sliečenie stiahnutých častí do konečného súboru...",
+  "translation_downloadedModels": "Stiahnuté modely",
+  "translation_deleteModel": "Odstrániť model",
+  "translation_modelDownloaded": "Model pre preklad bol stiahnutý.",
+  "translation_downloadStopped": "Stiahnutie bolo prerušené.",
+  "translation_downloadFailed": "Neúspešné stiahnutie: {error}",
+  "translation_enterUrlFirst": "Najprv zadajte URL pre konkrétny model.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
-  "scanner_linuxPairingPinPrompt": "Zadajte PIN pre {deviceName} (ak nie je, nechajte prázdne).",
-  "scanner_linuxPairingShowPin": "Zobraziť PIN",
   "scanner_linuxPairingHidePin": "Skryť PIN",
-  "scanner_linuxPairingPinTitle": "Bluetooth párovací PIN",
+  "scanner_linuxPairingShowPin": "Zobraziť PIN",
+  "scanner_linuxPairingPinTitle": "PIN pre párovanie cez Bluetooth",
+  "scanner_linuxPairingPinPrompt": "Zadajte PIN pre {deviceName} (ak neexistuje, nechajte prázdne).",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerDisabledHint": "Posielajte správy v pôvodnej písanom jazyku.",
+  "translation_composerEnabledHint": "Správy budú preložené, než budú odoslané.",
+  "translation_translateBeforeSending": "Preložte pred odeslaním",
+  "translation_messageTranslation": "Preklad textu",
+  "translation_translateTo": "Preložte do {language}",
+  "translation_translationOptions": "Možnosti prekladania",
+  "translation_systemLanguage": "Jazyk systému",
   "repeater_cliQuickClockSync": "Synchronizácia hodin",
   "repeater_cliQuickDiscovery": "Objaviť susedov"
-}
+}

lib/l10n/app_sl.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Prejemanje statistike o radiju…",
   "radioStats_settingsTile": "Radijske statistike",
   "radioStats_settingsSubtitle": "Število šumov, RSSI, SNR in čas, ki ga je napolnila oprema",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerTitle": "Preprištejte, preden pošljete",
+  "translation_title": "Prevod",
+  "translation_enableSubtitle": "Prevedite vstopne sporočila in omogočite predhodno prevajanje.",
+  "translation_enableTitle": "Omogočite prevod",
+  "translation_composerSubtitle": "Ureja privzeto stanje ikone za prevod, ki jo uporablja avtor.",
+  "translation_targetLanguage": "Ciljna jezika",
+  "translation_useAppLanguage": "Uporabite jezik aplikacije",
+  "translation_downloadedModelLabel": "Naložen model",
+  "translation_presetModelLabel": "Prednastavljeni model Hugging Face",
+  "translation_manualUrlLabel": "URL za ročni model",
+  "translation_downloadModel": "Prenesite model",
+  "translation_downloading": "Izvajanje...",
+  "translation_working": "Delo...",
+  "translation_stop": "Prekliji",
+  "translation_mergingChunks": "Sklapljanje prenesenih delov v končni datoteko...",
+  "translation_downloadedModels": "Naloženi modeli",
+  "translation_deleteModel": "Izbrisati model",
+  "translation_modelDownloaded": "Model za prevajanje je bil naložen.",
+  "translation_downloadStopped": "Prenos je bil prekinjen.",
+  "translation_downloadFailed": "Izgovoritev ni bila uspešna: {error}",
+  "translation_enterUrlFirst": "Najprej vnesite URL model.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,10 +2042,24 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_translateBeforeSending": "Preprištejte, preden pošljete",
+  "translation_composerDisabledHint": "Pošljite sporočila v originalnem tipkanem jeziku.",
+  "translation_composerEnabledHint": "Vsebina sporočil bo prevedena, preden jih pošljemo.",
+  "translation_messageTranslation": "Prevod sporočila",
+  "translation_translateTo": "Prevesti v {language}",
+  "translation_translationOptions": "Možnosti prevoda",
+  "translation_systemLanguage": "Jezik sistema",
   "scanner_linuxPairingShowPin": "Prikaži PIN",
   "scanner_linuxPairingHidePin": "Skrij PIN",
   "scanner_linuxPairingPinPrompt": "Vnesite PIN za {deviceName} (pustite prazno, če ga ni).",
   "scanner_linuxPairingPinTitle": "Bluetooth PIN za seznanjanje",
   "repeater_cliQuickDiscovery": "Odkrijte sosede",
   "repeater_cliQuickClockSync": "Usklajevanje ure"
-}
+}

lib/l10n/app_sv.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Hämtar radiostatistik…",
   "radioStats_settingsTile": "Radiostation",
   "radioStats_settingsSubtitle": "Bakgrundsnivå, RSSI, SNR och tillgänglig tid",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_enableSubtitle": "Översätt inkommande meddelanden och möjliggör översättning före avsändning.",
+  "translation_enableTitle": "Aktivera översättning",
+  "translation_title": "Översättning",
+  "translation_composerTitle": "Översätt innan du skickar",
+  "translation_composerSubtitle": "Styr standardtillståndet för kompositorns översättningsikon.",
+  "translation_targetLanguage": "Målmedvetet språk",
+  "translation_useAppLanguage": "Använd appens språk",
+  "translation_downloadedModelLabel": "Nedladdad modell",
+  "translation_presetModelLabel": "Fördefinierat Hugging Face-modell",
+  "translation_manualUrlLabel": "Manualens URL",
+  "translation_downloadModel": "Ladda ner modellen",
+  "translation_downloading": "Nedladdning...",
+  "translation_working": "Arbeta...",
+  "translation_stop": "Stopp",
+  "translation_mergingChunks": "Slå samman de nedladdade delarna till en slutlig fil...",
+  "translation_downloadedModels": "Nedladdade modeller",
+  "translation_deleteModel": "Ta bort modell",
+  "translation_modelDownloaded": "Översättningsmodellen har laddats ner.",
+  "translation_downloadStopped": "Nedladdningen avbruten.",
+  "translation_downloadFailed": "Nedladdning misslyckades: {error}",
+  "translation_enterUrlFirst": "Ange först en URL för en specifik modell.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,6 +2042,20 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerDisabledHint": "Skicka meddelanden på det ursprungliga, stavade språket.",
+  "translation_translateBeforeSending": "Översätt innan du skickar",
+  "translation_composerEnabledHint": "Meddelandena kommer att översättas innan de skickas.",
+  "translation_messageTranslation": "Meddelandets översättning",
+  "translation_translateTo": "Översätt till {language}",
+  "translation_translationOptions": "Översättningsalternativ",
+  "translation_systemLanguage": "Språk för systemet",
   "scanner_linuxPairingShowPin": "Visa PIN",
   "scanner_linuxPairingPinTitle": "Bluetooth‑parnings‑PIN",
   "scanner_linuxPairingPinPrompt": "Ange PIN för {deviceName} (lämna tomt om ingen).",

lib/l10n/app_uk.arb

@@ -2007,6 +2007,34 @@
   "radioStats_stripWaiting": "Отримано статистику радіо…",
   "radioStats_settingsTile": "Дані про радіостанції",
   "radioStats_settingsSubtitle": "Рівень шуму, RSSI, SNR та час, протягом якого пристрій використовує радіоканал.",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerTitle": "Перекладіть перед відправкою",
+  "translation_title": "Переклад",
+  "translation_enableTitle": "Увімкнути переклад",
+  "translation_enableSubtitle": "Перекладати отримані повідомлення та дозволяти попередній переклад перед відправкою.",
+  "translation_composerSubtitle": "Контролює стан ікон перекладу, який використовується за замовчуванням.",
+  "translation_targetLanguage": "Цільова мова",
+  "translation_useAppLanguage": "Використовуйте мову додатку",
+  "translation_downloadedModelLabel": "Завантажений шаблон",
+  "translation_presetModelLabel": "Заздалегідь налаштований модель від Hugging Face",
+  "translation_manualUrlLabel": "Посилання на веб-сторінку з інструкцією",
+  "translation_downloadModel": "Завантажити модель",
+  "translation_downloading": "Завантаження...",
+  "translation_working": "Працюю...",
+  "translation_stop": "Припинити",
+  "translation_mergingChunks": "Об'єднання завантажених фрагментів у кінцевий файл...",
+  "translation_downloadedModels": "Завантажені моделі",
+  "translation_deleteModel": "Видалити модель",
+  "translation_modelDownloaded": "Модель перекладу завантажена.",
+  "translation_downloadStopped": "Завантаження призупинено.",
+  "translation_downloadFailed": "Не вдалося завантажити: {error}",
+  "translation_enterUrlFirst": "Спочатку введіть URL моделі.",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2014,6 +2042,20 @@
       }
     }
   },
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerEnabledHint": "Повідомлення будуть перекладені перед відправленням.",
+  "translation_messageTranslation": "Переклад повідомлення",
+  "translation_composerDisabledHint": "Надсилайте повідомлення, використовуючи оригінальний текстовий формат.",
+  "translation_translateBeforeSending": "Перекладіть перед відправкою",
+  "translation_translateTo": "Перекласти на {language}",
+  "translation_translationOptions": "Варіанти перекладу",
+  "translation_systemLanguage": "Мова системи",
   "scanner_linuxPairingPinTitle": "PIN‑код спарювання Bluetooth",
   "scanner_linuxPairingShowPin": "Показати PIN",
   "scanner_linuxPairingPinPrompt": "Введіть PIN для {deviceName} (залиште порожнім, якщо його немає).",

lib/l10n/app_zh.arb

@@ -2012,6 +2012,34 @@
   "radioStats_stripWaiting": "正在获取收音机数据…",
   "radioStats_settingsTile": "广播统计数据",
   "radioStats_settingsSubtitle": "噪声水平、RSSI、信噪比和空中时间",
+  "@translation_downloadFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_title": "翻译",
+  "translation_enableSubtitle": "翻译收到的消息，并允许在发送前进行翻译。",
+  "translation_composerTitle": "在发送之前进行翻译",
+  "translation_enableTitle": "启用翻译功能",
+  "translation_composerSubtitle": "控制作曲家翻译图标的默认状态。",
+  "translation_targetLanguage": "目标语言",
+  "translation_useAppLanguage": "使用应用程序语言",
+  "translation_downloadedModelLabel": "下载的模型",
+  "translation_presetModelLabel": "预设的 Hugging Face 模型",
+  "translation_downloadModel": "下载模型",
+  "translation_manualUrlLabel": "手动模型网址",
+  "translation_downloading": "正在下载...",
+  "translation_working": "工作中...",
+  "translation_stop": "停止",
+  "translation_mergingChunks": "将下载的片段合并成最终文件...",
+  "translation_downloadedModels": "下载的模型",
+  "translation_deleteModel": "删除模型",
+  "translation_modelDownloaded": "翻译模型已下载。",
+  "translation_downloadStopped": "下载已停止。",
+  "translation_downloadFailed": "下载失败：{error}",
+  "translation_enterUrlFirst": "首先，请输入模型的 URL。",
   "@scanner_linuxPairingPinPrompt": {
     "placeholders": {
       "deviceName": {
@@ -2019,10 +2047,24 @@
       }
     }
   },
-  "scanner_linuxPairingShowPin": "显示 PIN码",
-  "scanner_linuxPairingPinPrompt": "输入 {deviceName} 的 PIN（如果没有，请留空）。",
   "scanner_linuxPairingPinTitle": "蓝牙配对 PIN",
+  "scanner_linuxPairingPinPrompt": "输入 {deviceName} 的 PIN 码（如果为空，则留空）。",
   "scanner_linuxPairingHidePin": "隐藏 PIN",
+  "scanner_linuxPairingShowPin": "显示PIN码",
+  "@translation_translateTo": {
+    "placeholders": {
+      "language": {
+        "type": "String"
+      }
+    }
+  },
+  "translation_composerDisabledHint": "使用原始的打字方式发送消息。",
+  "translation_messageTranslation": "消息翻译",
+  "translation_composerEnabledHint": "消息将在发送前进行翻译。",
+  "translation_translateBeforeSending": "在发送前进行翻译",
+  "translation_translateTo": "翻译成 {language}",
+  "translation_translationOptions": "翻译选项",
+  "translation_systemLanguage": "系统语言",
   "repeater_cliQuickDiscovery": "发现邻居",
   "repeater_cliQuickClockSync": "同步时钟"
-}
+}

lib/main.dart

@@ -1,10 +1,16 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter/foundation.dart';
+import 'package:flutter_foreground_task/flutter_foreground_task.dart';
 import 'l10n/app_localizations.dart';
 import 'package:provider/provider.dart';
 
+import 'screens/channel_chat_screen.dart';
+import 'screens/chat_screen.dart';
 import 'screens/chrome_required_screen.dart';
+import 'screens/discovery_screen.dart';
 import 'utils/platform_info.dart';
 
 import 'connector/meshcore_connector.dart';
@@ -19,6 +25,7 @@ import 'services/app_debug_log_service.dart';
 import 'services/background_service.dart';
 import 'services/map_tile_cache_service.dart';
 import 'services/chat_text_scale_service.dart';
+import 'services/translation_service.dart';
 import 'services/ui_view_state_service.dart';
 import 'services/timeout_prediction_service.dart';
 import 'storage/prefs_manager.dart';
@@ -41,6 +48,7 @@ void main() async {
   final backgroundService = BackgroundService();
   final mapTileCacheService = MapTileCacheService();
   final chatTextScaleService = ChatTextScaleService();
+  final translationService = TranslationService(appSettingsService);
   final uiViewStateService = UiViewStateService();
   final timeoutPredictionService = TimeoutPredictionService(storage);
 
@@ -60,6 +68,7 @@ void main() async {
   _registerThirdPartyLicenses();
 
   await chatTextScaleService.initialize();
+  await translationService.refreshDownloadedModels();
   await uiViewStateService.initialize();
   await timeoutPredictionService.initialize();
 
@@ -68,6 +77,7 @@ void main() async {
     retryService: retryService,
     pathHistoryService: pathHistoryService,
     appSettingsService: appSettingsService,
+    translationService: translationService,
     bleDebugLogService: bleDebugLogService,
     appDebugLogService: appDebugLogService,
     backgroundService: backgroundService,
@@ -93,6 +103,7 @@ void main() async {
       appDebugLogService: appDebugLogService,
       mapTileCacheService: mapTileCacheService,
       chatTextScaleService: chatTextScaleService,
+      translationService: translationService,
       uiViewStateService: uiViewStateService,
       timeoutPredictionService: timeoutPredictionService,
     ),
@@ -120,7 +131,7 @@ https://creativecommons.org/licenses/by/4.0/
   });
 }
 
-class MeshCoreApp extends StatelessWidget {
+class MeshCoreApp extends StatefulWidget {
   final MeshCoreConnector connector;
   final MessageRetryService retryService;
   final PathHistoryService pathHistoryService;
@@ -130,6 +141,7 @@ class MeshCoreApp extends StatelessWidget {
   final AppDebugLogService appDebugLogService;
   final MapTileCacheService mapTileCacheService;
   final ChatTextScaleService chatTextScaleService;
+  final TranslationService translationService;
   final UiViewStateService uiViewStateService;
   final TimeoutPredictionService timeoutPredictionService;
 
@@ -144,70 +156,141 @@ class MeshCoreApp extends StatelessWidget {
     required this.appDebugLogService,
     required this.mapTileCacheService,
     required this.chatTextScaleService,
+    required this.translationService,
     required this.uiViewStateService,
     required this.timeoutPredictionService,
   });
 
+  @override
+  State<MeshCoreApp> createState() => _MeshCoreAppState();
+}
+
+class _MeshCoreAppState extends State<MeshCoreApp> {
+  final GlobalKey<NavigatorState> _navigatorKey = GlobalKey<NavigatorState>();
+  StreamSubscription<NotificationTapEvent>? _notificationTapSubscription;
+
+  @override
+  void initState() {
+    super.initState();
+    _notificationTapSubscription = NotificationService().onNotificationTapped
+        .listen(_handleNotificationTap);
+  }
+
+  @override
+  void dispose() {
+    _notificationTapSubscription?.cancel();
+    super.dispose();
+  }
+
+  void _handleNotificationTap(NotificationTapEvent event) {
+    final navigator = _navigatorKey.currentState;
+    if (navigator == null) return;
+
+    switch (event.type) {
+      case NotificationTapEventType.message:
+        if (event.id == null) return;
+        final contact = widget.connector.findContactByKeyHex(event.id!);
+        if (contact == null) return;
+        widget.connector.markContactRead(contact.publicKeyHex);
+        navigator.push(
+          MaterialPageRoute(builder: (_) => ChatScreen(contact: contact)),
+        );
+        break;
+      case NotificationTapEventType.channel:
+        if (event.id == null) return;
+        final channelIndex = int.tryParse(event.id!);
+        if (channelIndex == null) return;
+        final channel = widget.connector.findChannelByIndex(channelIndex);
+        if (channel == null) return;
+        widget.connector.markChannelRead(channelIndex);
+        navigator.push(
+          MaterialPageRoute(
+            builder: (_) => ChannelChatScreen(channel: channel),
+          ),
+        );
+        break;
+      case NotificationTapEventType.advert:
+        // Clear every advert notification — the discovery
+        // list the user is about to see contains them all.
+        NotificationService().clearAllAdvertNotifications();
+        final ids = widget.connector.allContacts
+            .map((c) => c.publicKeyHex)
+            .toList();
+        NotificationService().clearAdvertNotifications(ids);
+        navigator.push(
+          MaterialPageRoute(builder: (_) => const DiscoveryScreen()),
+        );
+        break;
+      case NotificationTapEventType.batch:
+        // Batch summaries have no single target; no-op.
+        break;
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     return MultiProvider(
       providers: [
-        ChangeNotifierProvider.value(value: connector),
-        ChangeNotifierProvider.value(value: retryService),
-        ChangeNotifierProvider.value(value: pathHistoryService),
-        ChangeNotifierProvider.value(value: appSettingsService),
-        ChangeNotifierProvider.value(value: bleDebugLogService),
-        ChangeNotifierProvider.value(value: appDebugLogService),
-        ChangeNotifierProvider.value(value: chatTextScaleService),
-        ChangeNotifierProvider.value(value: uiViewStateService),
-        Provider.value(value: storage),
-        Provider.value(value: mapTileCacheService),
-        ChangeNotifierProvider.value(value: timeoutPredictionService),
+        ChangeNotifierProvider.value(value: widget.connector),
+        ChangeNotifierProvider.value(value: widget.retryService),
+        ChangeNotifierProvider.value(value: widget.pathHistoryService),
+        ChangeNotifierProvider.value(value: widget.appSettingsService),
+        ChangeNotifierProvider.value(value: widget.bleDebugLogService),
+        ChangeNotifierProvider.value(value: widget.appDebugLogService),
+        ChangeNotifierProvider.value(value: widget.chatTextScaleService),
+        ChangeNotifierProvider.value(value: widget.translationService),
+        ChangeNotifierProvider.value(value: widget.uiViewStateService),
+        Provider.value(value: widget.storage),
+        Provider.value(value: widget.mapTileCacheService),
+        ChangeNotifierProvider.value(value: widget.timeoutPredictionService),
       ],
       child: Consumer<AppSettingsService>(
         builder: (context, settingsService, child) {
-          return MaterialApp(
-            title: 'MeshCore Open',
-            debugShowCheckedModeBanner: false,
-            localizationsDelegates: const [
-              AppLocalizations.delegate,
-              GlobalMaterialLocalizations.delegate,
-              GlobalWidgetsLocalizations.delegate,
-              GlobalCupertinoLocalizations.delegate,
-            ],
-            supportedLocales: AppLocalizations.supportedLocales,
-            locale: _localeFromSetting(
-              settingsService.settings.languageOverride,
-            ),
-            theme: ThemeData(
-              colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
-              useMaterial3: true,
-              snackBarTheme: const SnackBarThemeData(
-                behavior: SnackBarBehavior.floating,
+          return WithForegroundTask(
+            child: MaterialApp(
+              navigatorKey: _navigatorKey,
+              title: 'MeshCore Open',
+              debugShowCheckedModeBanner: false,
+              localizationsDelegates: const [
+                AppLocalizations.delegate,
+                GlobalMaterialLocalizations.delegate,
+                GlobalWidgetsLocalizations.delegate,
+                GlobalCupertinoLocalizations.delegate,
+              ],
+              supportedLocales: AppLocalizations.supportedLocales,
+              locale: _localeFromSetting(
+                settingsService.settings.languageOverride,
               ),
-            ),
-            darkTheme: ThemeData(
-              colorScheme: ColorScheme.fromSeed(
-                seedColor: Colors.blue,
-                brightness: Brightness.dark,
+              theme: ThemeData(
+                colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
+                useMaterial3: true,
+                snackBarTheme: const SnackBarThemeData(
+                  behavior: SnackBarBehavior.floating,
+                ),
               ),
-              useMaterial3: true,
-              snackBarTheme: const SnackBarThemeData(
-                behavior: SnackBarBehavior.floating,
+              darkTheme: ThemeData(
+                colorScheme: ColorScheme.fromSeed(
+                  seedColor: Colors.blue,
+                  brightness: Brightness.dark,
+                ),
+                useMaterial3: true,
+                snackBarTheme: const SnackBarThemeData(
+                  behavior: SnackBarBehavior.floating,
+                ),
               ),
+              themeMode: _themeModeFromSetting(
+                settingsService.settings.themeMode,
+              ),
+              builder: (context, child) {
+                // Update notification service with resolved locale
+                final locale = Localizations.localeOf(context);
+                NotificationService().setLocale(locale);
+                return child ?? const SizedBox.shrink();
+              },
+              home: (PlatformInfo.isWeb && !PlatformInfo.isChrome)
+                  ? const ChromeRequiredScreen()
+                  : const ScannerScreen(),
             ),
-            themeMode: _themeModeFromSetting(
-              settingsService.settings.themeMode,
-            ),
-            builder: (context, child) {
-              // Update notification service with resolved locale
-              final locale = Localizations.localeOf(context);
-              NotificationService().setLocale(locale);
-              return child ?? const SizedBox.shrink();
-            },
-            home: (PlatformInfo.isWeb && !PlatformInfo.isChrome)
-                ? const ChromeRequiredScreen()
-                : const ScannerScreen(),
           );
         },
       ),

lib/models/app_settings.dart

@@ -1,3 +1,5 @@
+import 'translation_support.dart';
+
 enum UnitSystem { metric, imperial }
 
 extension UnitSystemValue on UnitSystem {
@@ -49,6 +51,12 @@ class AppSettings {
   final String tcpServerAddress;
   final int tcpServerPort;
   final bool jumpToOldestUnread;
+  final bool translationEnabled;
+  final String? translationTargetLanguageCode;
+  final bool composerTranslationEnabled;
+  final String? translationModelSourceUrl;
+  final String? translationSelectedModelId;
+  final List<TranslationModelRecord> translationDownloadedModels;
 
   AppSettings({
     this.clearPathOnMaxRetry = false,
@@ -86,9 +94,16 @@ class AppSettings {
     this.tcpServerAddress = '',
     this.tcpServerPort = 0,
     this.jumpToOldestUnread = false,
+    this.translationEnabled = false,
+    this.translationTargetLanguageCode,
+    this.composerTranslationEnabled = false,
+    this.translationModelSourceUrl,
+    this.translationSelectedModelId,
+    List<TranslationModelRecord>? translationDownloadedModels,
   }) : batteryChemistryByDeviceId = batteryChemistryByDeviceId ?? {},
        batteryChemistryByRepeaterId = batteryChemistryByRepeaterId ?? {},
-       mutedChannels = mutedChannels ?? {};
+       mutedChannels = mutedChannels ?? {},
+       translationDownloadedModels = translationDownloadedModels ?? const [];
 
   Map<String, dynamic> toJson() {
     return {
@@ -127,6 +142,14 @@ class AppSettings {
       'tcp_server_address': tcpServerAddress,
       'tcp_server_port': tcpServerPort,
       'jump_to_oldest_unread': jumpToOldestUnread,
+      'translation_enabled': translationEnabled,
+      'translation_target_language_code': translationTargetLanguageCode,
+      'composer_translation_enabled': composerTranslationEnabled,
+      'translation_model_source_url': translationModelSourceUrl,
+      'translation_selected_model_id': translationSelectedModelId,
+      'translation_downloaded_models': translationDownloadedModels
+          .map((model) => model.toJson())
+          .toList(),
     };
   }
 
@@ -196,6 +219,24 @@ class AppSettings {
       tcpServerAddress: json['tcp_server_address'] as String? ?? '',
       tcpServerPort: json['tcp_server_port'] as int? ?? 0,
       jumpToOldestUnread: json['jump_to_oldest_unread'] as bool? ?? false,
+      translationEnabled: json['translation_enabled'] as bool? ?? false,
+      translationTargetLanguageCode:
+          json['translation_target_language_code'] as String?,
+      composerTranslationEnabled:
+          json['composer_translation_enabled'] as bool? ?? false,
+      translationModelSourceUrl:
+          json['translation_model_source_url'] as String?,
+      translationSelectedModelId:
+          json['translation_selected_model_id'] as String?,
+      translationDownloadedModels:
+          (json['translation_downloaded_models'] as List<dynamic>?)
+              ?.map(
+                (entry) => TranslationModelRecord.fromJson(
+                  Map<String, dynamic>.from(entry as Map),
+                ),
+              )
+              .toList() ??
+          const [],
     );
   }
 
@@ -235,6 +276,12 @@ class AppSettings {
     String? tcpServerAddress,
     int? tcpServerPort,
     bool? jumpToOldestUnread,
+    bool? translationEnabled,
+    Object? translationTargetLanguageCode = _unset,
+    bool? composerTranslationEnabled,
+    Object? translationModelSourceUrl = _unset,
+    Object? translationSelectedModelId = _unset,
+    List<TranslationModelRecord>? translationDownloadedModels,
   }) {
     return AppSettings(
       clearPathOnMaxRetry: clearPathOnMaxRetry ?? this.clearPathOnMaxRetry,
@@ -284,6 +331,20 @@ class AppSettings {
       tcpServerAddress: tcpServerAddress ?? this.tcpServerAddress,
       tcpServerPort: tcpServerPort ?? this.tcpServerPort,
       jumpToOldestUnread: jumpToOldestUnread ?? this.jumpToOldestUnread,
+      translationEnabled: translationEnabled ?? this.translationEnabled,
+      translationTargetLanguageCode: translationTargetLanguageCode == _unset
+          ? this.translationTargetLanguageCode
+          : translationTargetLanguageCode as String?,
+      composerTranslationEnabled:
+          composerTranslationEnabled ?? this.composerTranslationEnabled,
+      translationModelSourceUrl: translationModelSourceUrl == _unset
+          ? this.translationModelSourceUrl
+          : translationModelSourceUrl as String?,
+      translationSelectedModelId: translationSelectedModelId == _unset
+          ? this.translationSelectedModelId
+          : translationSelectedModelId as String?,
+      translationDownloadedModels:
+          translationDownloadedModels ?? this.translationDownloadedModels,
     );
   }
 }

lib/models/channel_message.dart

@@ -2,6 +2,7 @@ import 'dart:typed_data';
 import '../connector/meshcore_protocol.dart';
 import '../helpers/reaction_helper.dart';
 import '../helpers/smaz.dart';
+import 'translation_support.dart';
 import '../utils/app_logger.dart';
 
 enum ChannelMessageStatus { pending, sent, failed }
@@ -24,9 +25,16 @@ class Repeat {
 }
 
 class ChannelMessage {
+  static const Object _unset = Object();
+
   final Uint8List? senderKey;
   final String senderName;
   final String text;
+  final String? originalText;
+  final String? translatedText;
+  final String? translatedLanguageCode;
+  final MessageTranslationStatus translationStatus;
+  final String? translationModelId;
   final DateTime timestamp;
   final bool isOutgoing;
   final ChannelMessageStatus status;
@@ -47,6 +55,11 @@ class ChannelMessage {
     this.senderKey,
     required this.senderName,
     required this.text,
+    this.originalText,
+    this.translatedText,
+    this.translatedLanguageCode,
+    this.translationStatus = MessageTranslationStatus.none,
+    this.translationModelId,
     required this.timestamp,
     required this.isOutgoing,
     this.status = ChannelMessageStatus.pending,
@@ -86,12 +99,30 @@ class ChannelMessage {
     String? replyToMessageId,
     String? replyToSenderName,
     String? replyToText,
+    Object? originalText = _unset,
+    Object? translatedText = _unset,
+    Object? translatedLanguageCode = _unset,
+    MessageTranslationStatus? translationStatus,
+    Object? translationModelId = _unset,
     Map<String, int>? reactions,
   }) {
     return ChannelMessage(
       senderKey: senderKey,
       senderName: senderName,
       text: text,
+      originalText: originalText == _unset
+          ? this.originalText
+          : originalText as String?,
+      translatedText: translatedText == _unset
+          ? this.translatedText
+          : translatedText as String?,
+      translatedLanguageCode: translatedLanguageCode == _unset
+          ? this.translatedLanguageCode
+          : translatedLanguageCode as String?,
+      translationStatus: translationStatus ?? this.translationStatus,
+      translationModelId: translationModelId == _unset
+          ? this.translationModelId
+          : translationModelId as String?,
       timestamp: timestamp,
       isOutgoing: isOutgoing,
       status: status ?? this.status,
@@ -191,12 +222,18 @@ class ChannelMessage {
   static ChannelMessage outgoing(
     String text,
     String senderName,
-    int channelIndex,
-  ) {
+    int channelIndex, {
+    String? originalText,
+    String? translatedLanguageCode,
+    String? translationModelId,
+  }) {
     return ChannelMessage(
       senderKey: null,
       senderName: senderName,
       text: text,
+      originalText: originalText,
+      translatedLanguageCode: translatedLanguageCode,
+      translationModelId: translationModelId,
       timestamp: DateTime.now(),
       isOutgoing: true,
       status: ChannelMessageStatus.pending,

lib/models/message.dart

@@ -1,19 +1,27 @@
 import 'dart:typed_data';
 import '../connector/meshcore_protocol.dart';
 import '../helpers/reaction_helper.dart';
+import 'translation_support.dart';
 
 enum MessageStatus { pending, sent, delivered, failed }
 
 class Message {
+  static const Object _unset = Object();
+
   final Uint8List senderKey;
   final String text;
   final DateTime timestamp;
   final bool isOutgoing;
   final bool isCli;
   final MessageStatus status;
+  final String? originalText;
+  final String? translatedText;
+  final String? translatedLanguageCode;
+  final MessageTranslationStatus translationStatus;
+  final String? translationModelId;
 
   // NEW: Retry logic fields
-  final String? messageId;
+  final String messageId;
   final int retryCount;
   final int? estimatedTimeoutMs;
   final int? expectedAckHash;
@@ -33,7 +41,12 @@ class Message {
     required this.isOutgoing,
     this.isCli = false,
     this.status = MessageStatus.pending,
-    this.messageId,
+    String? messageId,
+    this.originalText,
+    this.translatedText,
+    this.translatedLanguageCode,
+    this.translationStatus = MessageTranslationStatus.none,
+    this.translationModelId,
     this.retryCount = 0,
     this.estimatedTimeoutMs,
     this.expectedAckHash,
@@ -45,7 +58,10 @@ class Message {
     Uint8List? fourByteRoomContactKey,
     Map<String, int>? reactions,
     Map<String, MessageStatus>? reactionStatuses,
-  }) : pathBytes = pathBytes ?? Uint8List(0),
+  }) : messageId =
+           messageId ??
+           '${timestamp.millisecondsSinceEpoch}_${pubKeyToHex(senderKey)}_${text.hashCode}',
+       pathBytes = pathBytes ?? Uint8List(0),
        fourByteRoomContactKey = fourByteRoomContactKey ?? Uint8List(0),
        reactions = reactions ?? {},
        reactionStatuses = reactionStatuses ?? {};
@@ -63,6 +79,11 @@ class Message {
     int? pathLength,
     Uint8List? pathBytes,
     bool? isCli,
+    Object? originalText = _unset,
+    Object? translatedText = _unset,
+    Object? translatedLanguageCode = _unset,
+    MessageTranslationStatus? translationStatus,
+    Object? translationModelId = _unset,
     Map<String, int>? reactions,
     Map<String, MessageStatus>? reactionStatuses,
     Uint8List? fourByteRoomContactKey,
@@ -75,6 +96,19 @@ class Message {
       isCli: isCli ?? this.isCli,
       status: status ?? this.status,
       messageId: messageId,
+      originalText: originalText == _unset
+          ? this.originalText
+          : originalText as String?,
+      translatedText: translatedText == _unset
+          ? this.translatedText
+          : translatedText as String?,
+      translatedLanguageCode: translatedLanguageCode == _unset
+          ? this.translatedLanguageCode
+          : translatedLanguageCode as String?,
+      translationStatus: translationStatus ?? this.translationStatus,
+      translationModelId: translationModelId == _unset
+          ? this.translationModelId
+          : translationModelId as String?,
       retryCount: retryCount ?? this.retryCount,
       estimatedTimeoutMs: estimatedTimeoutMs ?? this.estimatedTimeoutMs,
       expectedAckHash: expectedAckHash ?? this.expectedAckHash,
@@ -124,12 +158,18 @@ class Message {
   static Message outgoing(
     Uint8List recipientKey,
     String text, {
+    String? originalText,
+    String? translatedLanguageCode,
+    String? translationModelId,
     int? pathLength,
     Uint8List? pathBytes,
   }) {
     return Message(
       senderKey: recipientKey,
       text: text,
+      originalText: originalText,
+      translatedLanguageCode: translatedLanguageCode,
+      translationModelId: translationModelId,
       timestamp: DateTime.now(),
       isOutgoing: true,
       isCli: false,

lib/models/translation_support.dart

@@ -0,0 +1,136 @@
+enum MessageTranslationStatus { none, pending, completed, failed, skipped }
+
+extension MessageTranslationStatusValue on MessageTranslationStatus {
+  String get value {
+    switch (this) {
+      case MessageTranslationStatus.pending:
+        return 'pending';
+      case MessageTranslationStatus.completed:
+        return 'completed';
+      case MessageTranslationStatus.failed:
+        return 'failed';
+      case MessageTranslationStatus.skipped:
+        return 'skipped';
+      case MessageTranslationStatus.none:
+        return 'none';
+    }
+  }
+}
+
+MessageTranslationStatus parseMessageTranslationStatus(dynamic value) {
+  if (value is! String) {
+    return MessageTranslationStatus.none;
+  }
+  for (final status in MessageTranslationStatus.values) {
+    if (status.value == value) {
+      return status;
+    }
+  }
+  return MessageTranslationStatus.none;
+}
+
+class TranslationModelRecord {
+  final String id;
+  final String name;
+  final String sourceUrl;
+  final String localPath;
+  final DateTime downloadedAt;
+  final int fileSizeBytes;
+
+  const TranslationModelRecord({
+    required this.id,
+    required this.name,
+    required this.sourceUrl,
+    required this.localPath,
+    required this.downloadedAt,
+    required this.fileSizeBytes,
+  });
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'name': name,
+      'source_url': sourceUrl,
+      'local_path': localPath,
+      'downloaded_at': downloadedAt.millisecondsSinceEpoch,
+      'file_size_bytes': fileSizeBytes,
+    };
+  }
+
+  factory TranslationModelRecord.fromJson(Map<String, dynamic> json) {
+    return TranslationModelRecord(
+      id: json['id'] as String? ?? '',
+      name: json['name'] as String? ?? '',
+      sourceUrl: json['source_url'] as String? ?? '',
+      localPath: json['local_path'] as String? ?? '',
+      downloadedAt: DateTime.fromMillisecondsSinceEpoch(
+        json['downloaded_at'] as int? ?? 0,
+      ),
+      fileSizeBytes: json['file_size_bytes'] as int? ?? 0,
+    );
+  }
+}
+
+String translationModelFriendlyName(TranslationModelRecord model) {
+  switch (model.id) {
+    case 'hy-mt1.5-1.8b-q4_k_m':
+      return 'Tencent HY-MT 1.5 1.8B Q4_K_M';
+    case 'hy-mt1.5-1.8b-q6_k':
+      return 'Tencent HY-MT 1.5 1.8B Q6_K';
+    default:
+      final trimmed = model.name.trim();
+      if (trimmed.endsWith('.gguf')) {
+        return trimmed.substring(0, trimmed.length - 5);
+      }
+      return trimmed.isEmpty ? model.id : trimmed;
+  }
+}
+
+class TranslationLanguageOption {
+  final String code;
+  final String label;
+
+  const TranslationLanguageOption({required this.code, required this.label});
+}
+
+const List<TranslationLanguageOption> supportedTranslationLanguages = [
+  TranslationLanguageOption(code: 'bg', label: 'Bulgarian'),
+  TranslationLanguageOption(code: 'de', label: 'German'),
+  TranslationLanguageOption(code: 'en', label: 'English'),
+  TranslationLanguageOption(code: 'es', label: 'Spanish'),
+  TranslationLanguageOption(code: 'fr', label: 'French'),
+  TranslationLanguageOption(code: 'hu', label: 'Hungarian'),
+  TranslationLanguageOption(code: 'it', label: 'Italian'),
+  TranslationLanguageOption(code: 'ja', label: 'Japanese'),
+  TranslationLanguageOption(code: 'ko', label: 'Korean'),
+  TranslationLanguageOption(code: 'nl', label: 'Dutch'),
+  TranslationLanguageOption(code: 'pl', label: 'Polish'),
+  TranslationLanguageOption(code: 'pt', label: 'Portuguese'),
+  TranslationLanguageOption(code: 'ru', label: 'Russian'),
+  TranslationLanguageOption(code: 'sk', label: 'Slovak'),
+  TranslationLanguageOption(code: 'sl', label: 'Slovenian'),
+  TranslationLanguageOption(code: 'sv', label: 'Swedish'),
+  TranslationLanguageOption(code: 'uk', label: 'Ukrainian'),
+  TranslationLanguageOption(code: 'zh', label: 'Chinese'),
+];
+
+final List<TranslationModelRecord> translationPresetModels = [
+  TranslationModelRecord(
+    id: 'hy-mt1.5-1.8b-q4_k_m',
+    name: 'HY-MT1.5-1.8B-Q4_K_M.gguf',
+    sourceUrl:
+        'https://huggingface.co/tencent/HY-MT1.5-1.8B-GGUF/resolve/main/HY-MT1.5-1.8B-Q4_K_M.gguf?download=true',
+    localPath: '',
+    downloadedAt: DateTime.fromMillisecondsSinceEpoch(0),
+    fileSizeBytes: 0,
+  ),
+  TranslationModelRecord(
+    id: 'hy-mt1.5-1.8b-q6_k',
+    name: 'HY-MT1.5-1.8B-Q6_K.gguf',
+    sourceUrl:
+        'https://huggingface.co/tencent/HY-MT1.5-1.8B-GGUF/resolve/main/HY-MT1.5-1.8B-Q6_K.gguf?download=true',
+    localPath: '',
+    downloadedAt: DateTime.fromMillisecondsSinceEpoch(0),
+    fileSizeBytes: 0,
+  ),
+];

lib/screens/app_settings_screen.dart

@@ -1,11 +1,14 @@
+import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
 import '../models/app_settings.dart';
+import '../models/translation_support.dart';
 import '../services/app_settings_service.dart';
 import '../services/notification_service.dart';
+import '../services/translation_service.dart';
 import '../widgets/adaptive_app_bar_title.dart';
 import 'map_cache_screen.dart';
 
@@ -21,26 +24,46 @@ class AppSettingsScreen extends StatelessWidget {
       ),
       body: SafeArea(
         top: false,
-        child: Consumer2<AppSettingsService, MeshCoreConnector>(
-          builder: (context, settingsService, connector, child) {
-            return ListView(
-              padding: const EdgeInsets.all(16),
-              children: [
-                _buildAppearanceCard(context, settingsService),
-                const SizedBox(height: 16),
-                _buildNotificationsCard(context, settingsService),
-                const SizedBox(height: 16),
-                _buildMessagingCard(context, settingsService),
-                const SizedBox(height: 16),
-                _buildBatteryCard(context, settingsService, connector),
-                const SizedBox(height: 16),
-                _buildMapSettingsCard(context, settingsService),
-                const SizedBox(height: 16),
-                _buildDebugCard(context, settingsService),
-              ],
-            );
-          },
-        ),
+        child:
+            Consumer3<
+              AppSettingsService,
+              MeshCoreConnector,
+              TranslationService
+            >(
+              builder:
+                  (
+                    context,
+                    settingsService,
+                    connector,
+                    translationService,
+                    child,
+                  ) {
+                    return ListView(
+                      padding: const EdgeInsets.all(16),
+                      children: [
+                        _buildAppearanceCard(context, settingsService),
+                        const SizedBox(height: 16),
+                        _buildNotificationsCard(context, settingsService),
+                        const SizedBox(height: 16),
+                        _buildMessagingCard(context, settingsService),
+                        const SizedBox(height: 16),
+                        if (!kIsWeb) ...[
+                          _buildTranslationCard(
+                            context,
+                            settingsService,
+                            translationService,
+                          ),
+                          const SizedBox(height: 16),
+                        ],
+                        _buildBatteryCard(context, settingsService, connector),
+                        const SizedBox(height: 16),
+                        _buildMapSettingsCard(context, settingsService),
+                        const SizedBox(height: 16),
+                        _buildDebugCard(context, settingsService),
+                      ],
+                    );
+                  },
+            ),
       ),
     );
   }
@@ -530,6 +553,211 @@ class AppSettingsScreen extends StatelessWidget {
     );
   }
 
+  Widget _buildTranslationCard(
+    BuildContext context,
+    AppSettingsService settingsService,
+    TranslationService translationService,
+  ) {
+    final settings = settingsService.settings;
+    return Card(
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 16, 16, 8),
+            child: Text(
+              context.l10n.translation_title,
+              style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+            ),
+          ),
+          SwitchListTile(
+            secondary: const Icon(Icons.translate),
+            title: Text(context.l10n.translation_enableTitle),
+            subtitle: Text(context.l10n.translation_enableSubtitle),
+            value: settings.translationEnabled,
+            onChanged: settingsService.setTranslationEnabled,
+          ),
+          const Divider(height: 1),
+          SwitchListTile(
+            secondary: const Icon(Icons.outgoing_mail),
+            title: Text(context.l10n.translation_composerTitle),
+            subtitle: Text(context.l10n.translation_composerSubtitle),
+            value: settings.composerTranslationEnabled,
+            onChanged: settingsService.setComposerTranslationEnabled,
+          ),
+          const Divider(height: 1),
+          ListTile(
+            leading: const Icon(Icons.language),
+            title: Text(context.l10n.translation_targetLanguage),
+            subtitle: Text(
+              _translationLanguageLabel(
+                context,
+                settings.translationTargetLanguageCode,
+              ),
+            ),
+            trailing: const Icon(Icons.chevron_right),
+            onTap: () =>
+                _showTranslationLanguageDialog(context, settingsService),
+          ),
+          const Divider(height: 1),
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 12, 16, 4),
+            child: DropdownButtonFormField<String>(
+              initialValue: settings.translationSelectedModelId,
+              isExpanded: true,
+              decoration: InputDecoration(
+                labelText: context.l10n.translation_downloadedModelLabel,
+                border: const OutlineInputBorder(),
+              ),
+              items: [
+                for (final model in settings.translationDownloadedModels)
+                  DropdownMenuItem(
+                    value: model.id,
+                    child: Text(translationModelFriendlyName(model)),
+                  ),
+              ],
+              onChanged: settings.translationDownloadedModels.isEmpty
+                  ? null
+                  : (value) {
+                      settingsService.setTranslationSelectedModelId(value);
+                    },
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 12, 16, 4),
+            child: DropdownButtonFormField<String>(
+              initialValue: null,
+              isExpanded: true,
+              decoration: InputDecoration(
+                labelText: context.l10n.translation_presetModelLabel,
+                border: const OutlineInputBorder(),
+              ),
+              items: [
+                for (final preset in translationPresetModels)
+                  DropdownMenuItem(
+                    value: preset.sourceUrl,
+                    child: Text(translationModelFriendlyName(preset)),
+                  ),
+              ],
+              onChanged: translationService.isBusy
+                  ? null
+                  : (value) async {
+                      if (value == null) return;
+                      final preset = translationPresetModels.firstWhere(
+                        (entry) => entry.sourceUrl == value,
+                      );
+                      await _downloadTranslationModel(
+                        context,
+                        translationService,
+                        settingsService,
+                        sourceUrl: preset.sourceUrl,
+                        fileName: preset.name,
+                        id: preset.id,
+                      );
+                    },
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 12, 16, 16),
+            child: Column(
+              children: [
+                _TranslationUrlField(
+                  initialValue: settings.translationModelSourceUrl ?? '',
+                  onChanged: settingsService.setTranslationModelSourceUrl,
+                  onDownload: translationService.isBusy
+                      ? null
+                      : (url) => _downloadTranslationModel(
+                          context,
+                          translationService,
+                          settingsService,
+                          sourceUrl: url,
+                        ),
+                  downloadLabel: translationService.isDownloading
+                      ? context.l10n.translation_downloading
+                      : translationService.isBusy
+                      ? context.l10n.translation_working
+                      : context.l10n.translation_downloadModel,
+                  isDownloading: translationService.isDownloading,
+                  onCancel: translationService.cancelDownload,
+                  labelText: context.l10n.translation_manualUrlLabel,
+                  stopLabel: context.l10n.translation_stop,
+                ),
+                if (translationService.isDownloading) ...[
+                  const SizedBox(height: 12),
+                  LinearProgressIndicator(
+                    value:
+                        translationService.downloadFileName ==
+                            'Merging chunks...'
+                        ? null
+                        : translationService.downloadProgress,
+                  ),
+                  const SizedBox(height: 8),
+                  Align(
+                    alignment: Alignment.centerLeft,
+                    child: Text(
+                      _downloadProgressLabel(context, translationService),
+                      style: Theme.of(context).textTheme.bodySmall,
+                    ),
+                  ),
+                ],
+                if (settings.translationDownloadedModels.isNotEmpty) ...[
+                  const SizedBox(height: 16),
+                  Align(
+                    alignment: Alignment.centerLeft,
+                    child: Text(
+                      context.l10n.translation_downloadedModels,
+                      style: Theme.of(context).textTheme.titleSmall,
+                    ),
+                  ),
+                  const SizedBox(height: 8),
+                  for (final model in settings.translationDownloadedModels)
+                    Card.outlined(
+                      margin: const EdgeInsets.only(bottom: 8),
+                      child: ListTile(
+                        contentPadding: const EdgeInsets.symmetric(
+                          horizontal: 12,
+                          vertical: 4,
+                        ),
+                        leading: Icon(
+                          model.id == settings.translationSelectedModelId
+                              ? Icons.check_circle
+                              : Icons.memory_outlined,
+                        ),
+                        title: Text(translationModelFriendlyName(model)),
+                        subtitle: Text(_downloadedModelLabel(model)),
+                        trailing: IconButton(
+                          tooltip: context.l10n.translation_deleteModel,
+                          onPressed: translationService.isBusy
+                              ? null
+                              : () => _deleteTranslationModel(
+                                  context,
+                                  translationService,
+                                  model,
+                                ),
+                          icon: const Icon(Icons.delete_outline),
+                        ),
+                        onTap: () => settingsService
+                            .setTranslationSelectedModelId(model.id),
+                      ),
+                    ),
+                ],
+                if (translationService.lastError != null) ...[
+                  const SizedBox(height: 8),
+                  Text(
+                    translationService.lastError!,
+                    style: TextStyle(
+                      color: Theme.of(context).colorScheme.error,
+                    ),
+                  ),
+                ],
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   // Fixed rendering issues
   Widget _buildBatteryCard(
     BuildContext context,
@@ -910,6 +1138,124 @@ class AppSettingsScreen extends StatelessWidget {
     );
   }
 
+  void _showTranslationLanguageDialog(
+    BuildContext context,
+    AppSettingsService settingsService,
+  ) {
+    showDialog(
+      context: context,
+      builder: (context) => _TranslationLanguageDialogContent(
+        currentLanguageCode:
+            settingsService.settings.translationTargetLanguageCode,
+        onLanguageSelected: (value) {
+          settingsService.setTranslationTargetLanguageCode(value);
+          Navigator.pop(context);
+        },
+      ),
+    );
+  }
+
+  Future<void> _downloadTranslationModel(
+    BuildContext context,
+    TranslationService translationService,
+    AppSettingsService settingsService, {
+    required String sourceUrl,
+    String? fileName,
+    String? id,
+  }) async {
+    if (sourceUrl.isEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(context.l10n.translation_enterUrlFirst)),
+      );
+      return;
+    }
+    try {
+      await translationService.downloadModel(
+        sourceUrl: sourceUrl,
+        fileName: fileName,
+        id: id,
+      );
+      if (!context.mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(context.l10n.translation_modelDownloaded)),
+      );
+      await settingsService.setTranslationEnabled(true);
+    } on TranslationDownloadCancelled {
+      if (!context.mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(context.l10n.translation_downloadStopped)),
+      );
+    } catch (error) {
+      if (!context.mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            context.l10n.translation_downloadFailed(error.toString()),
+          ),
+        ),
+      );
+    }
+  }
+
+  String _translationLanguageLabel(BuildContext context, String? languageCode) {
+    if (languageCode == null || languageCode.isEmpty) {
+      return context.l10n.translation_useAppLanguage;
+    }
+    for (final option in supportedTranslationLanguages) {
+      if (option.code == languageCode) {
+        return option.label;
+      }
+    }
+    return languageCode.toUpperCase();
+  }
+
+  String _downloadProgressLabel(
+    BuildContext context,
+    TranslationService translationService,
+  ) {
+    final fileName = translationService.downloadFileName ?? 'Model';
+    if (fileName == 'Merging chunks...') {
+      return context.l10n.translation_mergingChunks;
+    }
+    final currentMb = translationService.downloadedBytes / (1024 * 1024);
+    final totalBytes = translationService.downloadTotalBytes;
+    if (totalBytes == null || totalBytes <= 0) {
+      return '$fileName: ${currentMb.toStringAsFixed(1)} MB';
+    }
+    final totalMb = totalBytes / (1024 * 1024);
+    final percent = ((translationService.downloadProgress ?? 0) * 100)
+        .toStringAsFixed(0);
+    return '$fileName: ${currentMb.toStringAsFixed(1)} / ${totalMb.toStringAsFixed(1)} MB ($percent%)';
+  }
+
+  Future<void> _deleteTranslationModel(
+    BuildContext context,
+    TranslationService translationService,
+    TranslationModelRecord model,
+  ) async {
+    try {
+      await translationService.removeModel(model);
+      if (!context.mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          // TODO: l10n
+          content: Text('Deleted ${translationModelFriendlyName(model)}.'),
+        ),
+      );
+    } catch (error) {
+      if (!context.mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('Delete failed: $error')),
+      ); // TODO: l10n
+    }
+  }
+
+  String _downloadedModelLabel(TranslationModelRecord model) {
+    final sizeMb = model.fileSizeBytes / (1024 * 1024);
+    final source = model.sourceUrl.isEmpty ? model.name : model.sourceUrl;
+    return '${sizeMb.toStringAsFixed(1)} MB • $source';
+  }
+
   Widget _buildDebugCard(
     BuildContext context,
     AppSettingsService settingsService,
@@ -950,3 +1296,179 @@ class AppSettingsScreen extends StatelessWidget {
     );
   }
 }
+
+/// Owns the [TextEditingController] for the manual model URL field so it
+/// survives rebuilds of the parent [Consumer3].
+class _TranslationUrlField extends StatefulWidget {
+  const _TranslationUrlField({
+    required this.initialValue,
+    required this.onChanged,
+    required this.onDownload,
+    required this.downloadLabel,
+    required this.isDownloading,
+    required this.onCancel,
+    required this.labelText,
+    required this.stopLabel,
+  });
+
+  final String initialValue;
+  final ValueChanged<String> onChanged;
+  final void Function(String url)? onDownload;
+  final String downloadLabel;
+  final bool isDownloading;
+  final VoidCallback onCancel;
+  final String labelText;
+  final String stopLabel;
+
+  @override
+  State<_TranslationUrlField> createState() => _TranslationUrlFieldState();
+}
+
+class _TranslationUrlFieldState extends State<_TranslationUrlField> {
+  late final TextEditingController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = TextEditingController(text: widget.initialValue);
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: [
+        TextField(
+          controller: _controller,
+          decoration: InputDecoration(
+            labelText: widget.labelText,
+            border: const OutlineInputBorder(),
+          ),
+          onChanged: widget.onChanged,
+        ),
+        const SizedBox(height: 8),
+        Row(
+          children: [
+            Expanded(
+              child: FilledButton.icon(
+                onPressed: widget.onDownload == null
+                    ? null
+                    : () => widget.onDownload!(_controller.text.trim()),
+                icon: const Icon(Icons.download),
+                label: Text(widget.downloadLabel),
+              ),
+            ),
+            if (widget.isDownloading) ...[
+              const SizedBox(width: 8),
+              OutlinedButton.icon(
+                onPressed: widget.onCancel,
+                icon: const Icon(Icons.stop_circle_outlined),
+                label: Text(widget.stopLabel),
+              ),
+            ],
+          ],
+        ),
+      ],
+    );
+  }
+}
+
+/// Dialog content for choosing the translation target language.
+/// Owns the search [TextEditingController] so it is properly disposed.
+class _TranslationLanguageDialogContent extends StatefulWidget {
+  const _TranslationLanguageDialogContent({
+    required this.currentLanguageCode,
+    required this.onLanguageSelected,
+  });
+
+  final String? currentLanguageCode;
+  final ValueChanged<String?> onLanguageSelected;
+
+  @override
+  State<_TranslationLanguageDialogContent> createState() =>
+      _TranslationLanguageDialogContentState();
+}
+
+class _TranslationLanguageDialogContentState
+    extends State<_TranslationLanguageDialogContent> {
+  late final TextEditingController _searchController;
+  List<TranslationLanguageOption> _filtered = supportedTranslationLanguages;
+
+  @override
+  void initState() {
+    super.initState();
+    _searchController = TextEditingController();
+  }
+
+  @override
+  void dispose() {
+    _searchController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: Text(context.l10n.translation_targetLanguage),
+      content: SizedBox(
+        width: 360,
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            TextField(
+              controller: _searchController,
+              decoration: const InputDecoration(
+                prefixIcon: Icon(Icons.search),
+                border: OutlineInputBorder(),
+              ),
+              onChanged: (value) {
+                final normalized = value.trim().toLowerCase();
+                setState(() {
+                  _filtered = supportedTranslationLanguages.where((option) {
+                    return option.label.toLowerCase().contains(normalized) ||
+                        option.code.toLowerCase().contains(normalized);
+                  }).toList();
+                });
+              },
+            ),
+            const SizedBox(height: 12),
+            Flexible(
+              child: RadioGroup<String?>(
+                groupValue: widget.currentLanguageCode,
+                onChanged: (value) {
+                  widget.onLanguageSelected(value);
+                },
+                child: ListView(
+                  shrinkWrap: true,
+                  children: [
+                    RadioListTile<String?>(
+                      value: null,
+                      title: Text(context.l10n.translation_useAppLanguage),
+                    ),
+                    for (final option in _filtered)
+                      RadioListTile<String?>(
+                        value: option.code,
+                        title: Text(option.label),
+                        subtitle: Text(option.code.toUpperCase()),
+                      ),
+                  ],
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.pop(context),
+          child: Text(context.l10n.common_close),
+        ),
+      ],
+    );
+  }
+}

lib/screens/channel_chat_screen.dart

@@ -11,22 +11,26 @@ import '../connector/meshcore_connector.dart';
 import '../utils/platform_info.dart';
 import '../helpers/chat_scroll_controller.dart';
 import '../connector/meshcore_protocol.dart';
-import '../helpers/link_handler.dart';
+import '../helpers/gif_helper.dart';
 import '../helpers/reaction_helper.dart';
 import '../helpers/utf8_length_limiter.dart';
 import '../l10n/l10n.dart';
 import '../models/channel.dart';
 import '../models/channel_message.dart';
+import '../models/translation_support.dart';
 import '../services/app_settings_service.dart';
 import '../services/chat_text_scale_service.dart';
+import '../services/translation_service.dart';
 import '../utils/emoji_utils.dart';
 import '../widgets/chat_zoom_wrapper.dart';
 import '../widgets/emoji_picker.dart';
 import '../widgets/gif_message.dart';
 import '../widgets/jump_to_bottom_button.dart';
 import '../widgets/gif_picker.dart';
+import '../widgets/message_translation_button.dart';
 import '../widgets/message_status_icon.dart';
 import '../widgets/radio_stats_entry.dart';
+import '../widgets/translated_message_content.dart';
 import 'channel_message_path_screen.dart';
 import 'map_screen.dart';
 
@@ -352,8 +356,16 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     final settingsService = context.watch<AppSettingsService>();
     final enableTracing = settingsService.settings.enableMessageTracing;
     final isOutgoing = message.isOutgoing;
-    final gifId = _parseGifId(message.text);
+    final gifId = GifHelper.parseGif(message.text);
     final poi = _parsePoiMessage(message.text);
+    final translatedDisplayText =
+        message.translatedText != null &&
+            message.translatedText!.trim().isNotEmpty
+        ? message.translatedText!.trim()
+        : message.text;
+    final originalDisplayText = message.isOutgoing
+        ? message.originalText
+        : (translatedDisplayText != message.text ? message.text : null);
     final displayPath = message.pathBytes.isNotEmpty
         ? message.pathBytes
         : (message.pathVariants.isNotEmpty
@@ -504,12 +516,18 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
                           crossAxisAlignment: CrossAxisAlignment.end,
                           children: [
                             Flexible(
-                              child: LinkHandler.buildLinkifyText(
-                                context: context,
-                                text: message.text,
+                              child: TranslatedMessageContent(
+                                displayText: translatedDisplayText,
+                                originalText: originalDisplayText,
                                 style: TextStyle(
                                   fontSize: bodyFontSize * textScale,
                                 ),
+                                originalStyle: TextStyle(
+                                  fontSize: bodyFontSize * textScale,
+                                  fontStyle: FontStyle.italic,
+                                  color: Theme.of(context).colorScheme.onSurface
+                                      .withValues(alpha: 0.72),
+                                ),
                               ),
                             ),
                             if (!enableTracing && isOutgoing) ...[
@@ -682,7 +700,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     final colorScheme = Theme.of(context).colorScheme;
     final previewTextColor = colorScheme.onSurface.withValues(alpha: 0.7);
 
-    final gifId = _parseGifId(replyText);
+    final gifId = GifHelper.parseGif(replyText);
     final poi = _parsePoiMessage(replyText);
 
     Widget contentPreview;
@@ -794,12 +812,6 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     );
   }
 
-  String? _parseGifId(String text) {
-    final trimmed = text.trim();
-    final match = RegExp(r'^g:([A-Za-z0-9_-]+)$').firstMatch(trimmed);
-    return match?.group(1);
-  }
-
   _PoiInfo? _parsePoiMessage(String text) {
     final trimmed = text.trim();
     final match = RegExp(
@@ -880,7 +892,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
       isScrollControlled: true,
       builder: (context) => GifPicker(
         onGifSelected: (gifId) {
-          _textController.text = 'g:$gifId';
+          _textController.text = GifHelper.encodeGif(gifId);
         },
       ),
     );
@@ -994,6 +1006,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
   Widget _buildMessageComposer() {
     final connector = context.watch<MeshCoreConnector>();
     final maxBytes = maxChannelMessageBytes(connector.selfName);
+    final settings = context.watch<AppSettingsService>().settings;
     return Column(
       mainAxisSize: MainAxisSize.min,
       children: [
@@ -1025,11 +1038,17 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
                 onPressed: () => _showGifPicker(context),
                 tooltip: context.l10n.chat_sendGif,
               ),
+              if (settings.translationEnabled)
+                MessageTranslationButton(
+                  enabled: settings.composerTranslationEnabled,
+                  languageCode: settings.translationTargetLanguageCode,
+                  onPressed: _showTranslationOptions,
+                ),
               Expanded(
                 child: ValueListenableBuilder<TextEditingValue>(
                   valueListenable: _textController,
                   builder: (context, value, child) {
-                    final gifId = _parseGifId(value.text);
+                    final gifId = GifHelper.parseGif(value.text);
                     if (gifId != null) {
                       return Focus(
                         autofocus: true,
@@ -1102,6 +1121,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
               const SizedBox(width: 8),
               IconButton(
                 icon: const Icon(Icons.send),
+                tooltip: context.l10n.chat_sendMessage,
                 onPressed: _sendMessage,
                 color: Theme.of(context).colorScheme.primary,
               ),
@@ -1112,7 +1132,19 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     );
   }
 
-  void _sendMessage() {
+  Future<void> _showTranslationOptions() async {
+    final settingsService = context.read<AppSettingsService>();
+    final settings = settingsService.settings;
+    await showMessageTranslationSheet(
+      context: context,
+      enabled: settings.composerTranslationEnabled,
+      selectedLanguageCode: settings.translationTargetLanguageCode,
+      onEnabledChanged: settingsService.setComposerTranslationEnabled,
+      onLanguageSelected: settingsService.setTranslationTargetLanguageCode,
+    );
+  }
+
+  Future<void> _sendMessage() async {
     final text = _textController.text.trim();
     if (text.isEmpty) return;
 
@@ -1127,10 +1159,38 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     _lastChannelSendAt = now;
 
     final connector = context.read<MeshCoreConnector>();
+    final settings = context.read<AppSettingsService>().settings;
+    final translationService = context.read<TranslationService>();
 
     String messageText = text;
+    String? originalText;
+    String? translatedLanguageCode;
+    String? translationModelId;
+    if (settings.translationEnabled) {
+      final targetLanguageCode = translationService.resolvedTargetLanguageCode(
+        Localizations.localeOf(context).languageCode,
+      );
+      if (translationService.shouldTranslateOutgoing(
+        text: text,
+        targetLanguageCode: targetLanguageCode,
+      )) {
+        final result = await translationService.translateOutgoingText(
+          text: text,
+          targetLanguageCode: targetLanguageCode,
+        );
+        if (!mounted) return;
+        if (result != null &&
+            result.status == MessageTranslationStatus.completed &&
+            result.translatedText.isNotEmpty) {
+          messageText = result.translatedText;
+          originalText = text;
+          translatedLanguageCode = result.targetLanguageCode;
+          translationModelId = result.modelId;
+        }
+      }
+    }
     if (_replyingToMessage != null) {
-      messageText = '@[${_replyingToMessage!.senderName}] $text';
+      messageText = '@[${_replyingToMessage!.senderName}] $messageText';
     }
 
     final maxBytes = maxChannelMessageBytes(connector.selfName);
@@ -1141,10 +1201,16 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
       return;
     }
 
-    connector.sendChannelMessage(widget.channel, messageText);
     _textController.clear();
     _cancelReply();
     _textFieldFocusNode.requestFocus();
+    connector.sendChannelMessage(
+      widget.channel,
+      messageText,
+      originalText: originalText,
+      translatedLanguageCode: translatedLanguageCode,
+      translationModelId: translationModelId,
+    );
   }
 
   String _formatTime(DateTime time) {
@@ -1251,7 +1317,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
       message.senderName,
       message.text,
     );
-    final reactionText = 'r:$hash:$emojiIndex';
+    final reactionText = ReactionHelper.encodeReaction(hash, emojiIndex);
     connector.sendChannelMessage(widget.channel, reactionText);
   }
 

lib/screens/channel_message_path_screen.dart

@@ -879,7 +879,7 @@ List<_PathHop> _buildPathHops(
       previousPosition = resolvedPosition;
     }
     // If the best candidate is much farther than the previous hop, it's likely not the correct match.
-    if (lastDistance + bestDistance > 70000 &&
+    if (lastDistance + bestDistance > 50000 &&
         candidates != null &&
         candidates.isNotEmpty) {
       i--;

lib/screens/chat_screen.dart

@@ -16,16 +16,18 @@ import '../connector/meshcore_protocol.dart';
 import '../helpers/reaction_helper.dart';
 import '../widgets/message_status_icon.dart';
 import '../helpers/chat_scroll_controller.dart';
-import '../helpers/link_handler.dart';
+import '../helpers/gif_helper.dart';
 import '../helpers/path_helper.dart';
 import '../helpers/utf8_length_limiter.dart';
 import '../models/channel_message.dart';
 import '../models/contact.dart';
 import '../models/message.dart';
 import '../models/path_history.dart';
+import '../models/translation_support.dart';
 import '../services/app_settings_service.dart';
 import '../services/chat_text_scale_service.dart';
 import '../services/path_history_service.dart';
+import '../services/translation_service.dart';
 import '../widgets/chat_zoom_wrapper.dart';
 import '../widgets/elements_ui.dart';
 import 'channel_message_path_screen.dart';
@@ -35,8 +37,10 @@ import '../widgets/emoji_picker.dart';
 import '../widgets/gif_message.dart';
 import '../widgets/jump_to_bottom_button.dart';
 import '../widgets/gif_picker.dart';
+import '../widgets/message_translation_button.dart';
 import '../widgets/path_selection_dialog.dart';
 import '../widgets/radio_stats_entry.dart';
+import '../widgets/translated_message_content.dart';
 import '../utils/app_logger.dart';
 import '../l10n/l10n.dart';
 import 'telemetry_screen.dart';
@@ -495,6 +499,7 @@ class _ChatScreenState extends State<ChatScreen> {
   Widget _buildInputBar(MeshCoreConnector connector) {
     final maxBytes = maxContactMessageBytes();
     final colorScheme = Theme.of(context).colorScheme;
+    final settings = context.watch<AppSettingsService>().settings;
     return Container(
       padding: const EdgeInsets.all(8),
       decoration: BoxDecoration(
@@ -509,11 +514,17 @@ class _ChatScreenState extends State<ChatScreen> {
               onPressed: () => _showGifPicker(context),
               tooltip: context.l10n.chat_sendGif,
             ),
+            if (settings.translationEnabled)
+              MessageTranslationButton(
+                enabled: settings.composerTranslationEnabled,
+                languageCode: settings.translationTargetLanguageCode,
+                onPressed: _showTranslationOptions,
+              ),
             Expanded(
               child: ValueListenableBuilder<TextEditingValue>(
                 valueListenable: _textController,
                 builder: (context, value, child) {
-                  final gifId = _parseGifId(value.text);
+                  final gifId = GifHelper.parseGif(value.text);
                   if (gifId != null) {
                     return Focus(
                       autofocus: true,
@@ -580,6 +591,9 @@ class _ChatScreenState extends State<ChatScreen> {
             const SizedBox(width: 8),
             IconButton.filled(
               icon: const Icon(Icons.send),
+              tooltip: context.l10n.chat_sendMessageTo(
+                _resolveContact(connector).name,
+              ),
               onPressed: () => _sendMessage(connector),
             ),
           ],
@@ -588,25 +602,31 @@ class _ChatScreenState extends State<ChatScreen> {
     );
   }
 
-  String? _parseGifId(String text) {
-    final trimmed = text.trim();
-    final match = RegExp(r'^g:([A-Za-z0-9_-]+)$').firstMatch(trimmed);
-    return match?.group(1);
-  }
-
   void _showGifPicker(BuildContext context) {
     showModalBottomSheet(
       context: context,
       isScrollControlled: true,
       builder: (context) => GifPicker(
         onGifSelected: (gifId) {
-          _textController.text = 'g:$gifId';
+          _textController.text = GifHelper.encodeGif(gifId);
         },
       ),
     );
   }
 
-  void _sendMessage(MeshCoreConnector connector) {
+  Future<void> _showTranslationOptions() async {
+    final settingsService = context.read<AppSettingsService>();
+    final settings = settingsService.settings;
+    await showMessageTranslationSheet(
+      context: context,
+      enabled: settings.composerTranslationEnabled,
+      selectedLanguageCode: settings.translationTargetLanguageCode,
+      onEnabledChanged: settingsService.setComposerTranslationEnabled,
+      onLanguageSelected: settingsService.setTranslationTargetLanguageCode,
+    );
+  }
+
+  Future<void> _sendMessage(MeshCoreConnector connector) async {
     final text = _textController.text.trim();
     if (text.isEmpty) return;
 
@@ -620,17 +640,52 @@ class _ChatScreenState extends State<ChatScreen> {
     }
     _lastTextSendAt = now;
 
+    final settings = context.read<AppSettingsService>().settings;
+    final translationService = context.read<TranslationService>();
+    var outgoingText = text;
+    String? originalText;
+    String? translatedLanguageCode;
+    String? translationModelId;
+    if (settings.translationEnabled) {
+      final targetLanguageCode = translationService.resolvedTargetLanguageCode(
+        Localizations.localeOf(context).languageCode,
+      );
+      if (translationService.shouldTranslateOutgoing(
+        text: text,
+        targetLanguageCode: targetLanguageCode,
+      )) {
+        final result = await translationService.translateOutgoingText(
+          text: text,
+          targetLanguageCode: targetLanguageCode,
+        );
+        if (!mounted) return;
+        if (result != null &&
+            result.status == MessageTranslationStatus.completed &&
+            result.translatedText.isNotEmpty) {
+          outgoingText = result.translatedText;
+          originalText = text;
+          translatedLanguageCode = result.targetLanguageCode;
+          translationModelId = result.modelId;
+        }
+      }
+    }
     final maxBytes = maxContactMessageBytes();
-    if (utf8.encode(text).length > maxBytes) {
+    if (utf8.encode(outgoingText).length > maxBytes) {
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(content: Text(context.l10n.chat_messageTooLong(maxBytes))),
       );
       return;
     }
 
-    connector.sendMessage(_resolveContact(connector), text);
     _textController.clear();
     _textFieldFocusNode.requestFocus();
+    connector.sendMessage(
+      _resolveContact(connector),
+      outgoingText,
+      originalText: originalText,
+      translatedLanguageCode: translatedLanguageCode,
+      translationModelId: translationModelId,
+    );
   }
 
   void _showPathHistory(BuildContext context) {
@@ -1486,7 +1541,7 @@ class _ChatScreenState extends State<ChatScreen> {
       senderName,
       message.text,
     );
-    final reactionText = 'r:$hash:$emojiIndex';
+    final reactionText = ReactionHelper.encodeReaction(hash, emojiIndex);
     connector.sendMessage(_resolveContact(connector), reactionText);
   }
 }
@@ -1516,7 +1571,7 @@ class _MessageBubble extends StatelessWidget {
     final enableTracing = settingsService.settings.enableMessageTracing;
     final isOutgoing = message.isOutgoing;
     final colorScheme = Theme.of(context).colorScheme;
-    final gifId = _parseGifId(message.text);
+    final gifId = GifHelper.parseGif(message.text);
     final poi = _parsePoiMessage(message.text);
     final isFailed = message.status == MessageStatus.failed;
     final bubbleColor = isFailed
@@ -1533,6 +1588,14 @@ class _MessageBubble extends StatelessWidget {
     if (isRoomServer && !isOutgoing) {
       messageText = message.text.substring(4.clamp(0, message.text.length));
     }
+    final translatedDisplayText =
+        message.translatedText != null &&
+            message.translatedText!.trim().isNotEmpty
+        ? message.translatedText!.trim()
+        : messageText;
+    final originalDisplayText = isOutgoing
+        ? message.originalText
+        : (translatedDisplayText != messageText ? messageText : null);
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 4),
       child: Column(
@@ -1662,13 +1725,17 @@ class _MessageBubble extends StatelessWidget {
                             crossAxisAlignment: CrossAxisAlignment.end,
                             children: [
                               Flexible(
-                                child: LinkHandler.buildLinkifyText(
-                                  context: context,
-                                  text: messageText,
+                                child: TranslatedMessageContent(
+                                  displayText: translatedDisplayText,
+                                  originalText: originalDisplayText,
                                   style: TextStyle(
                                     color: textColor,
                                     fontSize: bodyFontSize * textScale,
                                   ),
+                                  originalStyle: TextStyle(
+                                    color: textColor.withValues(alpha: 0.78),
+                                    fontSize: bodyFontSize * textScale,
+                                  ),
                                 ),
                               ),
                               if (!enableTracing && isOutgoing) ...[
@@ -1778,12 +1845,6 @@ class _MessageBubble extends StatelessWidget {
     );
   }
 
-  String? _parseGifId(String text) {
-    final trimmed = text.trim();
-    final match = RegExp(r'^g:([A-Za-z0-9_-]+)$').firstMatch(trimmed);
-    return match?.group(1);
-  }
-
   _PoiInfo? _parsePoiMessage(String text) {
     final trimmed = text.trim();
     final match = RegExp(

lib/screens/contacts_screen.dart

@@ -394,7 +394,7 @@ class _ContactsScreenState extends State<ContactsScreen>
                     children: [
                       const Icon(Icons.person_add_rounded),
                       const SizedBox(width: 8),
-                      Text("Discovered Contacts"),
+                      Text(context.l10n.discoveredContacts_Title),
                     ],
                   ),
                   onTap: () => Navigator.push(

lib/screens/discovery_screen.dart

@@ -8,6 +8,7 @@ import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';
 import '../l10n/l10n.dart';
 import '../models/contact.dart';
+import '../services/notification_service.dart';
 import '../utils/contact_search.dart';
 import '../utils/platform_info.dart';
 import '../widgets/app_bar.dart';
@@ -31,6 +32,20 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
   DiscoverySortOption discoverySortOption = DiscoverySortOption.lastSeen;
   Timer? _searchDebounce;
 
+  @override
+  void initState() {
+    super.initState();
+    _clearAdvertNotifications();
+  }
+
+  void _clearAdvertNotifications() {
+    final connector = context.read<MeshCoreConnector>();
+    final ids = connector.allContacts.map((c) => c.publicKeyHex).toList();
+    final ns = NotificationService();
+    ns.clearAllAdvertNotifications();
+    ns.clearAdvertNotifications(ids);
+  }
+
   @override
   void dispose() {
     _searchController.dispose();

lib/screens/neighbors_screen.dart

@@ -142,7 +142,7 @@ class _NeighborsScreenState extends State<NeighborsScreen> {
 
   void _handleNeighborsResponse(MeshCoreConnector connector, Uint8List frame) {
     final buffer = BufferReader(frame);
-    final contacts = connector.allContacts;
+    final contacts = connector.allContactsUnfiltered;
     try {
       final neighborCount = buffer.readUInt16LE();
       final parsedNeighbors = parseNeighborsData(buffer, buffer.readUInt16LE());

lib/screens/scanner_screen.dart

@@ -7,6 +7,7 @@ import 'package:provider/provider.dart';
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
 import '../services/linux_ble_error_classifier.dart';
+import '../services/notification_service.dart';
 import '../utils/app_logger.dart';
 import '../widgets/adaptive_app_bar_title.dart';
 import '../widgets/device_tile.dart';
@@ -43,6 +44,10 @@ class _ScannerScreenState extends State<ScannerScreen> {
           isCurrentRoute &&
           !_changedNavigation) {
         _changedNavigation = true;
+        // Prompt for notification permission on first
+        // connect so notifications work out of the box
+        // on Android 13+.
+        NotificationService().requestPermissions();
         if (mounted) {
           Navigator.of(context).push(
             MaterialPageRoute(builder: (context) => const ContactsScreen()),
@@ -53,6 +58,12 @@ class _ScannerScreenState extends State<ScannerScreen> {
 
     _connector.addListener(_connectionListener);
 
+    // If the app was killed (swipe-away) and relaunched, try to reconnect
+    // to the last known device so the user doesn't have to scan again.
+    if (_connector.state == MeshCoreConnectionState.disconnected) {
+      _connector.tryAutoReconnect();
+    }
+
     _bluetoothStateSubscription = FlutterBluePlus.adapterState.listen(
       (state) {
         if (mounted) {

lib/screens/settings_screen.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:meshcore_open/utils/gpx_export.dart';
 import 'package:meshcore_open/widgets/elements_ui.dart';
@@ -8,12 +9,28 @@ import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';
 import '../l10n/l10n.dart';
 import '../models/radio_settings.dart';
+import '../services/app_debug_log_service.dart';
 import '../widgets/app_bar.dart';
 import 'app_settings_screen.dart';
 import 'app_debug_log_screen.dart';
 import 'ble_debug_log_screen.dart';
 import '../widgets/radio_stats_entry.dart';
 
+/// Convert device coding-rate value (1-4 on some firmware, 5-8 on others)
+/// to the UI enum range (always 5-8).
+int _toUiCodingRate(int deviceCr) {
+  return deviceCr <= 4 ? deviceCr + 4 : deviceCr;
+}
+
+/// Convert UI coding-rate value (5-8) back to firmware encoding.
+/// Uses the current device CR to detect which encoding the firmware expects.
+int _toDeviceCodingRate(int uiCr, int? deviceCr) {
+  if (deviceCr != null && deviceCr <= 4) {
+    return uiCr - 4;
+  }
+  return uiCr;
+}
+
 class SettingsScreen extends StatefulWidget {
   const SettingsScreen({super.key});
 
@@ -1088,6 +1105,11 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
   LoRaCodingRate _codingRate = LoRaCodingRate.cr4_5;
   final _txPowerController = TextEditingController(text: '20');
   bool _clientRepeat = false;
+  int? _selectedPresetIndex;
+  _RadioSettingsSnapshot? _lastNonRepeatSnapshot;
+
+  AppDebugLogService get _appLog =>
+      Provider.of<AppDebugLogService>(context, listen: false);
 
   @override
   void initState() {
@@ -1139,6 +1161,21 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
     }
 
     _clientRepeat = widget.connector.clientRepeat ?? false;
+    _selectedPresetIndex = _findMatchingPresetIndex();
+    if (_clientRepeat) {
+      _lastNonRepeatSnapshot =
+          _sessionRememberedNonRepeatSnapshot() ??
+          _inferNonRepeatSnapshotForRepeatEnabled();
+      _selectedPresetIndex = _findMatchingPresetIndexForSnapshot(
+        _lastNonRepeatSnapshot!,
+      );
+    } else {
+      _lastNonRepeatSnapshot = _nonRepeatSnapshotForCurrentSelection();
+    }
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
+      _logRadioSettingsState('Dialog initialized');
+    });
   }
 
   @override
@@ -1148,14 +1185,223 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
     super.dispose();
   }
 
-  void _applyPreset(RadioSettings preset) {
+  void _applyPreset(int index) {
     setState(() {
-      _frequencyController.text = preset.frequencyMHz.toString();
-      _bandwidth = preset.bandwidth;
-      _spreadingFactor = preset.spreadingFactor;
-      _codingRate = preset.codingRate;
-      _txPowerController.text = preset.txPowerDbm.toString();
+      _applyPresetState(index);
     });
+    _logRadioSettingsState(
+      'Applied preset ${RadioSettings.presets[index].$1} (#$index)',
+    );
+  }
+
+  int? _findMatchingPresetIndex() {
+    return _findMatchingPresetIndexForSnapshot(_currentSnapshot());
+  }
+
+  int? _findMatchingPresetIndexForSnapshot(_RadioSettingsSnapshot snapshot) {
+    for (final i in _visiblePresetIndexes()) {
+      final preset = RadioSettings.presets[i].$2;
+      if (preset.frequencyHz == snapshot.frequencyHz &&
+          preset.bandwidth == snapshot.bandwidth &&
+          preset.spreadingFactor == snapshot.spreadingFactor &&
+          preset.codingRate == snapshot.codingRate &&
+          preset.txPowerDbm == snapshot.txPowerDbm) {
+        return i;
+      }
+    }
+    return null;
+  }
+
+  Iterable<int> _visiblePresetIndexes() sync* {
+    for (var i = 0; i < RadioSettings.presets.length; i++) {
+      if (_isOffGridPresetIndex(i)) {
+        continue;
+      }
+      yield i;
+    }
+  }
+
+  _RadioSettingsSnapshot _currentSnapshot() {
+    final frequencyMHz = double.tryParse(_frequencyController.text) ?? 915.0;
+    final txPowerDbm = int.tryParse(_txPowerController.text) ?? 20;
+    return _RadioSettingsSnapshot(
+      frequencyMHz: frequencyMHz,
+      bandwidth: _bandwidth,
+      spreadingFactor: _spreadingFactor,
+      codingRate: _codingRate,
+      txPowerDbm: txPowerDbm,
+    );
+  }
+
+  bool _isOffGridPresetIndex(int? index) {
+    if (index == null) return false;
+    return RadioSettings.presets[index].$1.startsWith('Off-Grid ');
+  }
+
+  double _offGridFrequencyForBaseFrequency(double baseFrequencyMHz) {
+    if (baseFrequencyMHz < 500) return 433.0;
+    if (baseFrequencyMHz < 900) return 869.0;
+    return 918.0;
+  }
+
+  double _normalFrequencyForBand(double frequencyMHz) {
+    if (frequencyMHz < 500) return 433.650;
+    if (frequencyMHz < 900) return 869.432;
+    return 915.8;
+  }
+
+  _RadioSettingsSnapshot _fallbackNonRepeatSnapshot(
+    double currentFrequencyMHz,
+  ) {
+    return _RadioSettingsSnapshot(
+      frequencyMHz: _normalFrequencyForBand(currentFrequencyMHz),
+      bandwidth: _bandwidth,
+      spreadingFactor: _spreadingFactor,
+      codingRate: _codingRate,
+      txPowerDbm: int.tryParse(_txPowerController.text) ?? 20,
+    );
+  }
+
+  _RadioSettingsSnapshot _nonRepeatSnapshotForCurrentSelection() {
+    final current = _currentSnapshot();
+    if (!_isOffGridPresetIndex(_selectedPresetIndex)) {
+      return current;
+    }
+    return _fallbackNonRepeatSnapshot(current.frequencyMHz);
+  }
+
+  _RadioSettingsSnapshot? _sessionRememberedNonRepeatSnapshot() {
+    final snapshot = widget.connector.rememberedNonRepeatRadioState;
+    if (snapshot == null) return null;
+    return _RadioSettingsSnapshot.fromMeshCoreSnapshot(snapshot);
+  }
+
+  _RadioSettingsSnapshot _inferNonRepeatSnapshotForRepeatEnabled() {
+    final current = _currentSnapshot();
+    for (final i in _visiblePresetIndexes()) {
+      final preset = RadioSettings.presets[i].$2;
+      final offGridFreqHz =
+          (_offGridFrequencyForBaseFrequency(preset.frequencyMHz) * 1000)
+              .round();
+      if (offGridFreqHz == current.frequencyHz &&
+          preset.bandwidth == current.bandwidth &&
+          preset.spreadingFactor == current.spreadingFactor &&
+          preset.codingRate == current.codingRate &&
+          preset.txPowerDbm == current.txPowerDbm) {
+        return _RadioSettingsSnapshot(
+          frequencyMHz: preset.frequencyMHz,
+          bandwidth: preset.bandwidth,
+          spreadingFactor: preset.spreadingFactor,
+          codingRate: preset.codingRate,
+          txPowerDbm: preset.txPowerDbm,
+        );
+      }
+    }
+    return _fallbackNonRepeatSnapshot(current.frequencyMHz);
+  }
+
+  void _applySnapshot(_RadioSettingsSnapshot snapshot) {
+    _frequencyController.text = snapshot.frequencyMHz.toStringAsFixed(3);
+    _bandwidth = snapshot.bandwidth;
+    _spreadingFactor = snapshot.spreadingFactor;
+    _codingRate = snapshot.codingRate;
+    _txPowerController.text = snapshot.txPowerDbm.toString();
+  }
+
+  void _applyPresetState(int index) {
+    final preset = RadioSettings.presets[index].$2;
+    final baseSnapshot = _RadioSettingsSnapshot(
+      frequencyMHz: preset.frequencyMHz,
+      bandwidth: preset.bandwidth,
+      spreadingFactor: preset.spreadingFactor,
+      codingRate: preset.codingRate,
+      txPowerDbm: preset.txPowerDbm,
+    );
+    final frequencyMHz = _clientRepeat
+        ? _offGridFrequencyForBaseFrequency(baseSnapshot.frequencyMHz)
+        : baseSnapshot.frequencyMHz;
+    _frequencyController.text = frequencyMHz.toString();
+    _bandwidth = preset.bandwidth;
+    _spreadingFactor = preset.spreadingFactor;
+    _codingRate = preset.codingRate;
+    _txPowerController.text = preset.txPowerDbm.toString();
+    _selectedPresetIndex = index;
+    _lastNonRepeatSnapshot = baseSnapshot;
+  }
+
+  void _syncPresetSelection() {
+    final previousPresetIndex = _selectedPresetIndex;
+    final previousLastNonRepeat = _lastNonRepeatSnapshot;
+    if (_clientRepeat) {
+      final baseSnapshot =
+          previousLastNonRepeat ?? _inferNonRepeatSnapshotForRepeatEnabled();
+      if (_bandwidth != baseSnapshot.bandwidth ||
+          _spreadingFactor != baseSnapshot.spreadingFactor ||
+          _codingRate != baseSnapshot.codingRate ||
+          (int.tryParse(_txPowerController.text) ?? 20) !=
+              baseSnapshot.txPowerDbm) {
+        _lastNonRepeatSnapshot = _RadioSettingsSnapshot(
+          frequencyMHz: baseSnapshot.frequencyMHz,
+          bandwidth: _bandwidth,
+          spreadingFactor: _spreadingFactor,
+          codingRate: _codingRate,
+          txPowerDbm: int.tryParse(_txPowerController.text) ?? 20,
+        );
+      }
+      _selectedPresetIndex = _findMatchingPresetIndexForSnapshot(
+        _lastNonRepeatSnapshot ?? baseSnapshot,
+      );
+      if (previousPresetIndex != _selectedPresetIndex ||
+          previousLastNonRepeat != _lastNonRepeatSnapshot) {
+        _logRadioSettingsState(
+          'Preset match updated while repeat enabled: ${_presetLabel(previousPresetIndex)} -> ${_presetLabel(_selectedPresetIndex)}',
+        );
+      }
+      return;
+    }
+    _lastNonRepeatSnapshot = _nonRepeatSnapshotForCurrentSelection();
+    _selectedPresetIndex = _findMatchingPresetIndexForSnapshot(
+      _lastNonRepeatSnapshot!,
+    );
+    if (previousPresetIndex != _selectedPresetIndex ||
+        previousLastNonRepeat != _lastNonRepeatSnapshot) {
+      _logRadioSettingsState(
+        'Preset sync updated state from ${_presetLabel(previousPresetIndex)} to ${_presetLabel(_selectedPresetIndex)}',
+      );
+    }
+  }
+
+  void _handleManualSettingsChanged(String source) {
+    _logRadioSettingsState('Manual settings edit: $source');
+    setState(_syncPresetSelection);
+  }
+
+  void _handleClientRepeatChanged(bool enabled) {
+    _logRadioSettingsState(
+      'Off-grid repeat toggle requested: $_clientRepeat -> $enabled',
+    );
+    setState(() {
+      final currentSnapshot = _currentSnapshot();
+      if (enabled) {
+        if (!_clientRepeat) {
+          _syncPresetSelection();
+        }
+        final baseSnapshot = _lastNonRepeatSnapshot ?? currentSnapshot;
+        _clientRepeat = true;
+        _frequencyController.text = _offGridFrequencyForBaseFrequency(
+          baseSnapshot.frequencyMHz,
+        ).toStringAsFixed(3);
+        return;
+      }
+
+      _clientRepeat = false;
+      _applySnapshot(
+        _lastNonRepeatSnapshot ??
+            _fallbackNonRepeatSnapshot(currentSnapshot.frequencyMHz),
+      );
+      _syncPresetSelection();
+    });
+    _logRadioSettingsState('Off-grid repeat toggle applied');
   }
 
   Future<void> _saveSettings() async {
@@ -1203,6 +1449,7 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
     }
 
     try {
+      _logRadioSettingsState('Saving radio settings');
       await widget.connector.sendFrame(
         buildSetRadioParamsFrame(
           freqHz,
@@ -1214,29 +1461,62 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
       );
       await widget.connector.sendFrame(buildSetRadioTxPowerFrame(txPower));
       await widget.connector.refreshDeviceInfo();
+      final rememberedSnapshot = _clientRepeat
+          ? _lastNonRepeatSnapshot
+          : _currentSnapshot();
+      if (rememberedSnapshot != null) {
+        widget.connector.rememberNonRepeatRadioState(
+          rememberedSnapshot.toMeshCoreSnapshot(widget.connector.currentCr),
+        );
+      }
 
       if (!mounted) return;
-      Navigator.pop(context);
+      _logRadioSettingsState('Radio settings saved successfully');
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(content: Text(l10n.settings_radioSettingsUpdated)),
       );
     } catch (e) {
+      _appLog.warn('Radio settings save failed: $e', tag: 'RadioSettings');
       if (!mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(content: Text(l10n.settings_error(e.toString()))),
       );
     }
+    Navigator.pop(context);
   }
 
-  int _toUiCodingRate(int deviceCr) {
-    return deviceCr <= 4 ? deviceCr + 4 : deviceCr;
-  }
-
-  int _toDeviceCodingRate(int uiCr, int? deviceCr) {
-    if (deviceCr != null && deviceCr <= 4) {
-      return uiCr - 4;
+  String _presetLabel(int? index) {
+    if (index == null) {
+      return 'custom';
     }
-    return uiCr;
+    return '${RadioSettings.presets[index].$1} (#$index)';
+  }
+
+  String _formatSnapshot(_RadioSettingsSnapshot? snapshot) {
+    if (snapshot == null) {
+      return 'null';
+    }
+    return '${snapshot.frequencyMHz.toStringAsFixed(3)}MHz/'
+        '${snapshot.bandwidth.label}/'
+        '${snapshot.spreadingFactor.label}/'
+        '${snapshot.codingRate.label}/'
+        '${snapshot.txPowerDbm}dBm';
+  }
+
+  void _logRadioSettingsState(String message) {
+    if (!kDebugMode) return;
+    _appLog.info(
+      '$message | '
+      'freq=${_frequencyController.text}MHz '
+      'bw=${_bandwidth.label} '
+      'sf=${_spreadingFactor.label} '
+      'cr=${_codingRate.label} '
+      'tx=${_txPowerController.text}dBm '
+      'repeat=$_clientRepeat '
+      'preset=${_presetLabel(_selectedPresetIndex)} '
+      'lastNonRepeat=${_formatSnapshot(_lastNonRepeatSnapshot)}',
+      tag: 'RadioSettings',
+    );
   }
 
   @override
@@ -1250,12 +1530,14 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             DropdownButtonFormField<int>(
+              key: ValueKey<int?>(_selectedPresetIndex),
+              initialValue: _selectedPresetIndex,
               decoration: InputDecoration(
                 labelText: l10n.settings_presets,
                 border: const OutlineInputBorder(),
               ),
               items: [
-                for (var i = 0; i < RadioSettings.presets.length; i++)
+                for (final i in _visiblePresetIndexes())
                   DropdownMenuItem(
                     value: i,
                     child: Text(RadioSettings.presets[i].$1),
@@ -1263,13 +1545,14 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
               ],
               onChanged: (index) {
                 if (index != null) {
-                  _applyPreset(RadioSettings.presets[index].$2);
+                  _applyPreset(index);
                 }
               },
             ),
             const SizedBox(height: 16),
             TextField(
               controller: _frequencyController,
+              onChanged: (_) => _handleManualSettingsChanged('frequency'),
               decoration: InputDecoration(
                 labelText: l10n.settings_frequency,
                 border: const OutlineInputBorder(),
@@ -1292,7 +1575,13 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
                   )
                   .toList(),
               onChanged: (value) {
-                if (value != null) setState(() => _bandwidth = value);
+                if (value != null) {
+                  setState(() {
+                    _bandwidth = value;
+                    _syncPresetSelection();
+                  });
+                  _logRadioSettingsState('Manual settings edit: bandwidth');
+                }
               },
             ),
             const SizedBox(height: 16),
@@ -1308,7 +1597,15 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
                   )
                   .toList(),
               onChanged: (value) {
-                if (value != null) setState(() => _spreadingFactor = value);
+                if (value != null) {
+                  setState(() {
+                    _spreadingFactor = value;
+                    _syncPresetSelection();
+                  });
+                  _logRadioSettingsState(
+                    'Manual settings edit: spreading factor',
+                  );
+                }
               },
             ),
             const SizedBox(height: 16),
@@ -1324,12 +1621,19 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
                   )
                   .toList(),
               onChanged: (value) {
-                if (value != null) setState(() => _codingRate = value);
+                if (value != null) {
+                  setState(() {
+                    _codingRate = value;
+                    _syncPresetSelection();
+                  });
+                  _logRadioSettingsState('Manual settings edit: coding rate');
+                }
               },
             ),
             const SizedBox(height: 16),
             TextField(
               controller: _txPowerController,
+              onChanged: (_) => _handleManualSettingsChanged('tx power'),
               decoration: InputDecoration(
                 labelText: l10n.settings_txPower,
                 border: const OutlineInputBorder(),
@@ -1345,7 +1649,7 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
                 title: Text(l10n.settings_clientRepeat),
                 subtitle: Text(l10n.settings_clientRepeatSubtitle),
                 value: _clientRepeat,
-                onChanged: (value) => setState(() => _clientRepeat = value),
+                onChanged: _handleClientRepeatChanged,
                 contentPadding: EdgeInsets.zero,
               ),
             ],
@@ -1362,3 +1666,75 @@ class _RadioSettingsDialogState extends State<_RadioSettingsDialog> {
     );
   }
 }
+
+class _RadioSettingsSnapshot {
+  final double frequencyMHz;
+  final LoRaBandwidth bandwidth;
+  final LoRaSpreadingFactor spreadingFactor;
+  final LoRaCodingRate codingRate;
+  final int txPowerDbm;
+
+  const _RadioSettingsSnapshot({
+    required this.frequencyMHz,
+    required this.bandwidth,
+    required this.spreadingFactor,
+    required this.codingRate,
+    required this.txPowerDbm,
+  });
+
+  /// Frequency in integer Hz — avoids floating-point comparison issues.
+  int get frequencyHz => (frequencyMHz * 1000).round();
+
+  /// Convert from the connector's raw-int snapshot to UI-enum snapshot.
+  static _RadioSettingsSnapshot? fromMeshCoreSnapshot(
+    MeshCoreRadioStateSnapshot snapshot,
+  ) {
+    final bw = LoRaBandwidth.values
+        .where((b) => b.hz == snapshot.bwHz)
+        .firstOrNull;
+    final sf = LoRaSpreadingFactor.values
+        .where((s) => s.value == snapshot.sf)
+        .firstOrNull;
+    final cr = LoRaCodingRate.values
+        .where((c) => c.value == _toUiCodingRate(snapshot.cr))
+        .firstOrNull;
+    if (bw == null || sf == null || cr == null) return null;
+    return _RadioSettingsSnapshot(
+      frequencyMHz: snapshot.freqHz / 1000.0,
+      bandwidth: bw,
+      spreadingFactor: sf,
+      codingRate: cr,
+      txPowerDbm: snapshot.txPowerDbm,
+    );
+  }
+
+  /// Convert back to the connector's raw-int snapshot.
+  MeshCoreRadioStateSnapshot toMeshCoreSnapshot(int? deviceCr) {
+    return MeshCoreRadioStateSnapshot(
+      freqHz: frequencyHz,
+      bwHz: bandwidth.hz,
+      sf: spreadingFactor.value,
+      cr: _toDeviceCodingRate(codingRate.value, deviceCr),
+      txPowerDbm: txPowerDbm,
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return other is _RadioSettingsSnapshot &&
+        frequencyHz == other.frequencyHz &&
+        bandwidth == other.bandwidth &&
+        spreadingFactor == other.spreadingFactor &&
+        codingRate == other.codingRate &&
+        txPowerDbm == other.txPowerDbm;
+  }
+
+  @override
+  int get hashCode => Object.hash(
+    frequencyHz,
+    bandwidth,
+    spreadingFactor,
+    codingRate,
+    txPowerDbm,
+  );
+}

lib/services/app_settings_service.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'package:flutter/foundation.dart';
 import '../models/app_settings.dart';
+import '../models/translation_support.dart';
 import '../storage/prefs_manager.dart';
 import '../utils/app_logger.dart';
 
@@ -222,4 +223,34 @@ class AppSettingsService extends ChangeNotifier {
   Future<void> setJumpToOldestUnread(bool value) async {
     await updateSettings(_settings.copyWith(jumpToOldestUnread: value));
   }
+
+  Future<void> setTranslationEnabled(bool value) async {
+    await updateSettings(_settings.copyWith(translationEnabled: value));
+  }
+
+  Future<void> setTranslationTargetLanguageCode(String? value) async {
+    await updateSettings(
+      _settings.copyWith(translationTargetLanguageCode: value),
+    );
+  }
+
+  Future<void> setComposerTranslationEnabled(bool value) async {
+    await updateSettings(_settings.copyWith(composerTranslationEnabled: value));
+  }
+
+  Future<void> setTranslationModelSourceUrl(String? value) async {
+    await updateSettings(_settings.copyWith(translationModelSourceUrl: value));
+  }
+
+  Future<void> setTranslationSelectedModelId(String? value) async {
+    await updateSettings(_settings.copyWith(translationSelectedModelId: value));
+  }
+
+  Future<void> setTranslationDownloadedModels(
+    List<TranslationModelRecord> value,
+  ) async {
+    await updateSettings(
+      _settings.copyWith(translationDownloadedModels: value),
+    );
+  }
 }

lib/services/background_service.dart

@@ -1,54 +1,121 @@
+import 'package:flutter/widgets.dart';
 import '../utils/platform_info.dart';
 import 'package:flutter_foreground_task/flutter_foreground_task.dart';
 
-class BackgroundService {
+/// Manages a foreground service (Android) and app lifecycle awareness
+/// (Android + iOS) to keep the BLE connection alive when the app is
+/// backgrounded or swiped away from the recents drawer.
+class BackgroundService with WidgetsBindingObserver {
   bool _initialized = false;
+  bool _serviceRunning = false;
+
+  /// Optional callback invoked when the OS resumes the app after it was
+  /// paused or detached.  The connector hooks this to trigger a reconnect
+  /// check so the BLE link is restored promptly.
+  VoidCallback? onResume;
+
+  /// Optional callback invoked when the app is about to be suspended.
+  /// The connector can use this to persist critical state.
+  VoidCallback? onPause;
 
   Future<void> initialize() async {
-    if (!PlatformInfo.isAndroid || _initialized) return;
-    FlutterForegroundTask.init(
-      androidNotificationOptions: AndroidNotificationOptions(
-        channelId: 'meshcore_background',
-        channelName: 'MeshCore Background',
-        channelDescription: 'Keeps MeshCore running in the background.',
-        channelImportance: NotificationChannelImportance.LOW,
-        priority: NotificationPriority.LOW,
-      ),
-      iosNotificationOptions: const IOSNotificationOptions(
-        showNotification: false,
-        playSound: false,
-      ),
-      foregroundTaskOptions: ForegroundTaskOptions(
-        eventAction: ForegroundTaskEventAction.repeat(5000),
-        autoRunOnBoot: false,
-        allowWifiLock: false,
-      ),
-    );
+    if (_initialized) return;
+
+    // Register for app lifecycle events on all mobile platforms.
+    WidgetsBinding.instance.addObserver(this);
+
+    if (PlatformInfo.isAndroid) {
+      FlutterForegroundTask.init(
+        androidNotificationOptions: AndroidNotificationOptions(
+          channelId: 'meshcore_background',
+          channelName: 'MeshCore Background',
+          channelDescription: 'Keeps MeshCore running in the background.',
+          channelImportance: NotificationChannelImportance.LOW,
+          priority: NotificationPriority.LOW,
+        ),
+        iosNotificationOptions: const IOSNotificationOptions(
+          showNotification: false,
+          playSound: false,
+        ),
+        foregroundTaskOptions: ForegroundTaskOptions(
+          eventAction: ForegroundTaskEventAction.repeat(5000),
+          autoRunOnBoot: false,
+          allowWifiLock: false,
+        ),
+      );
+    }
     _initialized = true;
   }
 
   Future<void> start() async {
-    if (!PlatformInfo.isAndroid) return;
+    if (!PlatformInfo.isMobile) return;
     if (!_initialized) {
       await initialize();
     }
-    final running = await FlutterForegroundTask.isRunningService;
-    if (running) return;
-    await FlutterForegroundTask.startService(
-      notificationTitle: 'MeshCore running',
-      notificationText: 'Keeping BLE connected',
-      callback: startCallback,
-    );
+
+    // Android: start the foreground service so the OS keeps the process alive
+    // even when the user swipes the app away.
+    if (PlatformInfo.isAndroid) {
+      final running = await FlutterForegroundTask.isRunningService;
+      if (!running) {
+        await FlutterForegroundTask.startService(
+          notificationTitle: 'MeshCore running',
+          notificationText: 'Keeping BLE connected',
+          callback: startCallback,
+        );
+      }
+    }
+
+    // iOS: the bluetooth-central UIBackgroundMode (Info.plist) combined with
+    // CoreBluetooth state restoration (handled by flutter_blue_plus) keeps the
+    // BLE connection alive.  No additional service is needed, but we track
+    // the logical "running" state so callers behave consistently.
+    _serviceRunning = true;
   }
 
   Future<void> stop() async {
-    if (!PlatformInfo.isAndroid) return;
-    final running = await FlutterForegroundTask.isRunningService;
-    if (!running) return;
-    await FlutterForegroundTask.stopService();
+    if (!PlatformInfo.isMobile) return;
+
+    if (PlatformInfo.isAndroid) {
+      final running = await FlutterForegroundTask.isRunningService;
+      if (running) {
+        await FlutterForegroundTask.stopService();
+      }
+    }
+    _serviceRunning = false;
+  }
+
+  bool get isRunning => _serviceRunning;
+
+  // ---------------------------------------------------------------------------
+  // WidgetsBindingObserver – app lifecycle
+  // ---------------------------------------------------------------------------
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    switch (state) {
+      case AppLifecycleState.resumed:
+        onResume?.call();
+        break;
+      case AppLifecycleState.paused:
+      case AppLifecycleState.detached:
+        onPause?.call();
+        break;
+      case AppLifecycleState.inactive:
+      case AppLifecycleState.hidden:
+        break;
+    }
+  }
+
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
   }
 }
 
+// ---------------------------------------------------------------------------
+// Foreground-service isolate entry point (Android)
+// ---------------------------------------------------------------------------
+
 @pragma('vm:entry-point')
 void startCallback() {
   FlutterForegroundTask.setTaskHandler(_MeshCoreTaskHandler());
@@ -56,10 +123,25 @@ void startCallback() {
 
 class _MeshCoreTaskHandler extends TaskHandler {
   @override
-  Future<void> onStart(DateTime timestamp, TaskStarter starter) async {}
+  Future<void> onStart(DateTime timestamp, TaskStarter starter) async {
+    // The handler runs in a separate isolate.  Its purpose is to keep the
+    // foreground-service notification alive so that Android does not kill
+    // the main isolate (where the BLE connection lives).
+    //
+    // Heavy BLE work stays in the main isolate; we just need the service
+    // to exist.
+  }
 
   @override
-  void onRepeatEvent(DateTime timestamp) {}
+  void onRepeatEvent(DateTime timestamp) {
+    // Periodically update the notification so the system considers the
+    // service active.  This also acts as a heartbeat.
+    FlutterForegroundTask.updateService(
+      notificationTitle: 'MeshCore running',
+      notificationText:
+          'Connected · ${timestamp.toLocal().hour.toString().padLeft(2, '0')}:${timestamp.toLocal().minute.toString().padLeft(2, '0')}',
+    );
+  }
 
   @override
   Future<void> onDestroy(DateTime timestamp, bool isTimeout) async {}

lib/services/message_retry_service.dart

@@ -138,6 +138,9 @@ class MessageRetryService extends ChangeNotifier {
   Future<void> sendMessageWithRetry({
     required Contact contact,
     required String text,
+    String? originalText,
+    String? translatedLanguageCode,
+    String? translationModelId,
     Uint8List? pathBytes,
     int? pathLength,
   }) async {
@@ -150,6 +153,9 @@ class MessageRetryService extends ChangeNotifier {
     final message = Message(
       senderKey: contact.publicKey,
       text: text,
+      originalText: originalText,
+      translatedLanguageCode: translatedLanguageCode,
+      translationModelId: translationModelId,
       timestamp: DateTime.now(),
       isOutgoing: true,
       status: MessageStatus.pending,

lib/services/notification_service.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:io' show Platform, File;
 import 'dart:ui';
 
@@ -8,6 +9,21 @@ import '../helpers/reaction_helper.dart';
 import '../l10n/app_localizations.dart';
 import '../utils/platform_info.dart';
 
+enum NotificationTapEventType { message, channel, advert, batch }
+
+/// Payload emitted when the user taps a notification.
+class NotificationTapEvent {
+  // The type of notification tap event [NotificationTapEventType]
+  final NotificationTapEventType type;
+
+  /// For messages: the contact public key hex.
+  /// For channels: the channel index as a string.
+  /// For adverts: the contact public key hex.
+  final String? id;
+
+  const NotificationTapEvent({required this.type, this.id});
+}
+
 class NotificationService {
   static final NotificationService _instance = NotificationService._internal();
   factory NotificationService() => _instance;
@@ -17,6 +33,15 @@ class NotificationService {
       FlutterLocalNotificationsPlugin();
   bool _isInitialized = false;
 
+  /// Stream of notification tap events for navigation handling.
+  final StreamController<NotificationTapEvent> _tapController =
+      StreamController<NotificationTapEvent>.broadcast();
+
+  /// Listen to this stream to handle navigation when a notification
+  /// is tapped.
+  Stream<NotificationTapEvent> get onNotificationTapped =>
+      _tapController.stream;
+
   // Locale for localized notification strings
   Locale _locale = const Locale('en');
 
@@ -167,6 +192,10 @@ class NotificationService {
   }) async {
     if (!await _ensureInitialized()) return;
 
+    // Group per contact so each conversation is collapsible
+    // independently in the notification shade.
+    final groupKey = contactId != null ? 'msg_$contactId' : 'meshcore_messages';
+
     final androidDetails = AndroidNotificationDetails(
       'messages',
       'Messages',
@@ -175,6 +204,7 @@ class NotificationService {
       priority: Priority.high,
       icon: '@mipmap/ic_launcher',
       number: badgeCount,
+      groupKey: groupKey,
     );
 
     final iosDetails = DarwinNotificationDetails(
@@ -205,6 +235,13 @@ class NotificationService {
         notificationDetails: notificationDetails,
         payload: 'message:$contactId',
       );
+      await _postGroupSummary(
+        groupKey: groupKey,
+        channelId: 'messages',
+        channelName: 'Messages',
+        title: contactName,
+        payload: 'message:$contactId',
+      );
     } catch (e) {
       debugPrint('Failed to show message notification: $e');
     }
@@ -217,6 +254,8 @@ class NotificationService {
   }) async {
     if (!await _ensureInitialized()) return;
 
+    const groupKey = 'meshcore_adverts';
+
     const androidDetails = AndroidNotificationDetails(
       'adverts',
       'Advertisements',
@@ -224,6 +263,7 @@ class NotificationService {
       importance: Importance.defaultImportance,
       priority: Priority.defaultPriority,
       icon: '@mipmap/ic_launcher',
+      groupKey: groupKey,
     );
 
     const iosDetails = DarwinNotificationDetails(
@@ -254,6 +294,15 @@ class NotificationService {
         notificationDetails: notificationDetails,
         payload: 'advert:$contactId',
       );
+      await _postGroupSummary(
+        groupKey: groupKey,
+        channelId: 'adverts',
+        channelName: 'Advertisements',
+        title: _l10n.notification_activityTitle,
+        payload: 'advert:',
+        importance: Importance.defaultImportance,
+        priority: Priority.defaultPriority,
+      );
     } catch (e) {
       debugPrint('Failed to show advert notification: $e');
     }
@@ -267,6 +316,12 @@ class NotificationService {
   }) async {
     if (!await _ensureInitialized()) return;
 
+    // Group per channel so each channel is collapsible
+    // independently in the notification shade.
+    final groupKey = channelIndex != null
+        ? 'ch_$channelIndex'
+        : 'meshcore_channels';
+
     final androidDetails = AndroidNotificationDetails(
       'channel_messages',
       'Channel Messages',
@@ -275,6 +330,7 @@ class NotificationService {
       priority: Priority.high,
       icon: '@mipmap/ic_launcher',
       number: badgeCount,
+      groupKey: groupKey,
     );
 
     final iosDetails = DarwinNotificationDetails(
@@ -310,11 +366,70 @@ class NotificationService {
         notificationDetails: notificationDetails,
         payload: 'channel:$channelIndex',
       );
+      await _postGroupSummary(
+        groupKey: groupKey,
+        channelId: 'channel_messages',
+        channelName: 'Channel Messages',
+        title: channelName,
+        payload: 'channel:$channelIndex',
+      );
     } catch (e) {
       debugPrint('Failed to show channel notification: $e');
     }
   }
 
+  // ---------------------------------------------------------------
+  // Android group summary helper
+  // ---------------------------------------------------------------
+  // Android requires a notification with setAsGroupSummary for
+  // each groupKey.  This is what the user sees (and taps) when
+  // the OS collapses individual notifications in a group.
+  // ---------------------------------------------------------------
+
+  /// Post (or replace) the group summary notification for
+  /// [groupKey].  The summary's [payload] controls where tapping
+  /// the collapsed group navigates.
+  Future<void> _postGroupSummary({
+    required String groupKey,
+    required String channelId,
+    required String channelName,
+    required String title,
+    required String payload,
+    Importance importance = Importance.high,
+    Priority priority = Priority.high,
+  }) async {
+    if (!PlatformInfo.isAndroid) return;
+
+    final details = AndroidNotificationDetails(
+      channelId,
+      channelName,
+      importance: importance,
+      priority: priority,
+      icon: '@mipmap/ic_launcher',
+      groupKey: groupKey,
+      setAsGroupSummary: true,
+    );
+
+    // Use a stable ID derived from the groupKey so each
+    // group's summary replaces itself, never duplicates.
+    final summaryId = 'summary:$groupKey'.hashCode;
+
+    try {
+      await _notifications.show(
+        id: summaryId,
+        title: title,
+        body: null,
+        notificationDetails: NotificationDetails(android: details),
+        payload: payload,
+      );
+    } catch (e) {
+      debugPrint(
+        'Failed to post group summary '
+        '($groupKey): $e',
+      );
+    }
+  }
+
   /// Returns a privacy-safe identifier for debug logging.
   /// - advert: shows device name (body contains contactName)
   /// - message: shows "from: sender" (avoids logging message content)
@@ -332,14 +447,42 @@ class NotificationService {
 
   void _onNotificationTapped(NotificationResponse response) {
     final payload = response.payload;
-    if (payload != null) {
-      debugPrint('Notification tapped: $payload');
-      // Handle navigation based on payload
-      // This can be extended to navigate to specific screens
+    if (payload == null) return;
+    debugPrint('Notification tapped: $payload');
+
+    if (payload.startsWith('message:')) {
+      final contactId = payload.substring('message:'.length);
+      _tapController.add(
+        NotificationTapEvent(
+          type: NotificationTapEventType.message,
+          id: contactId,
+        ),
+      );
+    } else if (payload.startsWith('channel:')) {
+      final channelIndex = payload.substring('channel:'.length);
+      _tapController.add(
+        NotificationTapEvent(
+          type: NotificationTapEventType.channel,
+          id: channelIndex,
+        ),
+      );
+    } else if (payload.startsWith('advert:')) {
+      final contactId = payload.substring('advert:'.length);
+      _tapController.add(
+        NotificationTapEvent(
+          type: NotificationTapEventType.advert,
+          id: contactId,
+        ),
+      );
+    } else if (payload == 'batch') {
+      _tapController.add(
+        const NotificationTapEvent(type: NotificationTapEventType.batch),
+      );
     }
   }
 
   Future<void> cancelAll() async {
+    _pendingNotifications.clear();
     await _notifications.cancelAll();
   }
 
@@ -352,6 +495,11 @@ class NotificationService {
     String contactId,
     int totalUnreadCount,
   ) async {
+    // Purge any queued notifications for this contact so the batch timer
+    // doesn't re-post a notification the user has already seen.
+    _pendingNotifications.removeWhere(
+      (n) => n.type == _NotificationType.message && n.id == contactId,
+    );
     if (!await _ensureInitialized()) return;
     await _notifications.cancel(id: contactId.hashCode);
     await _updateBadge(totalUnreadCount);
@@ -362,6 +510,13 @@ class NotificationService {
     int channelIndex,
     int totalUnreadCount,
   ) async {
+    // Purge any queued notifications for this channel so the batch timer
+    // doesn't re-post a notification the user has already seen.
+    _pendingNotifications.removeWhere(
+      (n) =>
+          n.type == _NotificationType.channelMessage &&
+          n.id == channelIndex.toString(),
+    );
     if (!await _ensureInitialized()) return;
     await _notifications.cancel(id: channelIndex.hashCode);
     await _updateBadge(totalUnreadCount);
@@ -375,6 +530,21 @@ class NotificationService {
     }
   }
 
+  /// Cancel every advert notification including the group
+  /// summary.  Called when the user opens the discovery list
+  /// (which shows all discovered nodes anyway).
+  Future<void> clearAllAdvertNotifications() async {
+    if (!await _ensureInitialized()) return;
+    // Cancel the group summary.
+    final summaryId = 'summary:meshcore_adverts'.hashCode;
+    await _notifications.cancel(id: summaryId);
+    // Individual adverts are cancelled by the OS when their
+    // group summary is removed, but on some OEMs we need to
+    // cancel them explicitly.  We don't track IDs, so the
+    // caller should also pass known IDs through
+    // clearAdvertNotifications() when available.
+  }
+
   Future<void> _updateBadge(int count) async {
     if (PlatformInfo.isIOS || PlatformInfo.isMacOS) {
       // On Apple platforms, set the badge number directly via a silent update.
@@ -545,7 +715,13 @@ class NotificationService {
   Future<void> _showBatchSummary(List<_PendingNotification> batch) async {
     if (!await _ensureInitialized()) return;
 
-    // Group by type
+    // Show each notification individually — the Android
+    // groupKey on each type will cluster them automatically.
+    for (final notification in batch) {
+      await _showNotificationImmediately(notification);
+    }
+
+    // Debug logging
     final messages = batch
         .where((n) => n.type == _NotificationType.message)
         .toList();
@@ -556,48 +732,20 @@ class NotificationService {
         .where((n) => n.type == _NotificationType.channelMessage)
         .toList();
 
-    // Build summary text using localized plurals
     final parts = <String>[];
     if (messages.isNotEmpty) {
-      parts.add(_l10n.notification_messagesCount(messages.length));
+      parts.add('${messages.length} messages');
     }
     if (channelMsgs.isNotEmpty) {
-      parts.add(_l10n.notification_channelMessagesCount(channelMsgs.length));
+      parts.add('${channelMsgs.length} channel msgs');
     }
     if (adverts.isNotEmpty) {
-      parts.add(_l10n.notification_newNodesCount(adverts.length));
+      parts.add('${adverts.length} adverts');
     }
-
-    if (parts.isEmpty) return;
-
-    // Show first few device names in batch summary for debugging (only if adverts exist)
-    final deviceInfo = adverts.isNotEmpty
-        ? ' (${adverts.take(5).map((n) => n.body).join(', ')}${adverts.length > 5 ? ', ...' : ''})'
-        : '';
-    debugPrint('[Notification] batch summary: ${parts.join(", ")}$deviceInfo');
-
-    const androidDetails = AndroidNotificationDetails(
-      'batch_summary',
-      'Activity Summary',
-      channelDescription: 'Batched notification summaries',
-      importance: Importance.defaultImportance,
-      priority: Priority.defaultPriority,
-      icon: '@mipmap/ic_launcher',
+    debugPrint(
+      '[Notification] batch dispatched: '
+      '${parts.join(", ")}',
     );
-
-    const notificationDetails = NotificationDetails(android: androidDetails);
-
-    try {
-      await _notifications.show(
-        id: 'batch_summary'.hashCode,
-        title: _l10n.notification_activityTitle,
-        body: parts.join(', '),
-        notificationDetails: notificationDetails,
-        payload: 'batch',
-      );
-    } catch (e) {
-      debugPrint('Failed to show batch summary notification: $e');
-    }
   }
 }
 

lib/services/translation_file_store.dart

@@ -0,0 +1,2 @@
+export 'translation_file_store_stub.dart'
+    if (dart.library.io) 'translation_file_store_io.dart';

lib/services/translation_file_store_io.dart

@@ -0,0 +1,131 @@
+import 'dart:io';
+
+import 'package:path_provider/path_provider.dart';
+
+import '../models/translation_support.dart';
+
+class TranslationFileStore {
+  Future<String> modelDirectoryPath() async {
+    final baseDir = await getApplicationDocumentsDirectory();
+    final dir = Directory('${baseDir.path}/translation_models');
+    if (!dir.existsSync()) {
+      await dir.create(recursive: true);
+    }
+    return dir.path;
+  }
+
+  Future<List<TranslationModelRecord>> scanDownloadedModels() async {
+    final dir = Directory(await modelDirectoryPath());
+    if (!dir.existsSync()) {
+      return const [];
+    }
+    final models = <TranslationModelRecord>[];
+    for (final entity in dir.listSync().whereType<File>()) {
+      final name = entity.uri.pathSegments.last;
+      // Skip hidden chunk files from interrupted parallel downloads.
+      if (name.startsWith('.')) {
+        await entity.delete();
+        continue;
+      }
+      final stat = entity.statSync();
+      models.add(
+        TranslationModelRecord(
+          id: name,
+          name: name,
+          sourceUrl: '',
+          localPath: entity.path,
+          downloadedAt: stat.modified,
+          fileSizeBytes: stat.size,
+        ),
+      );
+    }
+    return models;
+  }
+
+  Future<void> deleteModel(TranslationModelRecord model) async {
+    await deleteFile(model.localPath);
+  }
+
+  Future<void> deleteFile(String path) async {
+    final file = File(path);
+    if (file.existsSync()) {
+      await file.delete();
+    }
+  }
+
+  Future<DownloadedModelFile> writeModelBytes({
+    required String fileName,
+    required Stream<List<int>> chunks,
+  }) async {
+    final directoryPath = await modelDirectoryPath();
+    final file = File('$directoryPath/$fileName');
+    final sink = file.openWrite();
+    var fileSizeBytes = 0;
+    var completed = false;
+    try {
+      await for (final chunk in chunks) {
+        sink.add(chunk);
+        fileSizeBytes += chunk.length;
+      }
+      completed = true;
+    } finally {
+      await sink.close();
+      if (!completed && file.existsSync()) {
+        await file.delete();
+      }
+    }
+    return DownloadedModelFile(
+      localPath: file.path,
+      fileSizeBytes: fileSizeBytes,
+    );
+  }
+
+  Future<String> chunkFilePath(String fileName, int index) async {
+    final dir = await modelDirectoryPath();
+    return '$dir/.${fileName}_chunk_$index';
+  }
+
+  Future<DownloadedModelFile> combineChunks({
+    required String fileName,
+    required List<String> chunkPaths,
+  }) async {
+    final dir = await modelDirectoryPath();
+    final finalPath = '$dir/$fileName';
+    final sink = File(finalPath).openWrite();
+    var totalSize = 0;
+    var completed = false;
+    try {
+      for (final chunkPath in chunkPaths) {
+        final chunkFile = File(chunkPath);
+        await sink.addStream(chunkFile.openRead());
+        totalSize += await chunkFile.length();
+      }
+      completed = true;
+    } finally {
+      await sink.close();
+      for (final chunkPath in chunkPaths) {
+        final file = File(chunkPath);
+        if (file.existsSync()) {
+          await file.delete();
+        }
+      }
+      if (!completed) {
+        final finalFile = File(finalPath);
+        if (finalFile.existsSync()) {
+          await finalFile.delete();
+        }
+      }
+    }
+    return DownloadedModelFile(localPath: finalPath, fileSizeBytes: totalSize);
+  }
+}
+
+class DownloadedModelFile {
+  final String localPath;
+  final int fileSizeBytes;
+
+  const DownloadedModelFile({
+    required this.localPath,
+    required this.fileSizeBytes,
+  });
+}

lib/services/translation_file_store_stub.dart

@@ -0,0 +1,43 @@
+import '../models/translation_support.dart';
+
+class TranslationFileStore {
+  Future<String> modelDirectoryPath() async {
+    throw UnsupportedError('Local model storage is not supported on web.');
+  }
+
+  Future<List<TranslationModelRecord>> scanDownloadedModels() async {
+    return const [];
+  }
+
+  Future<void> deleteModel(TranslationModelRecord model) async {}
+
+  Future<void> deleteFile(String path) async {}
+
+  Future<DownloadedModelFile> writeModelBytes({
+    required String fileName,
+    required Stream<List<int>> chunks,
+  }) async {
+    throw UnsupportedError('Local model downloads are not supported on web.');
+  }
+
+  Future<String> chunkFilePath(String fileName, int index) async {
+    throw UnsupportedError('Local model downloads are not supported on web.');
+  }
+
+  Future<DownloadedModelFile> combineChunks({
+    required String fileName,
+    required List<String> chunkPaths,
+  }) async {
+    throw UnsupportedError('Local model downloads are not supported on web.');
+  }
+}
+
+class DownloadedModelFile {
+  final String localPath;
+  final int fileSizeBytes;
+
+  const DownloadedModelFile({
+    required this.localPath,
+    required this.fileSizeBytes,
+  });
+}

lib/services/translation_service.dart

@@ -0,0 +1,663 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+import 'package:llamadart/llamadart.dart';
+
+import '../models/app_settings.dart';
+import '../models/translation_support.dart';
+import '../helpers/gif_helper.dart';
+import '../utils/app_logger.dart';
+import 'app_settings_service.dart';
+import 'translation_file_store.dart';
+
+class TranslationResult {
+  final String translatedText;
+  final String targetLanguageCode;
+  final String? detectedLanguageCode;
+  final String? modelId;
+  final MessageTranslationStatus status;
+
+  const TranslationResult({
+    required this.translatedText,
+    required this.targetLanguageCode,
+    required this.status,
+    this.detectedLanguageCode,
+    this.modelId,
+  });
+}
+
+class TranslationDownloadCancelled implements Exception {
+  const TranslationDownloadCancelled();
+
+  @override
+  String toString() => 'Download canceled.';
+}
+
+class TranslationService extends ChangeNotifier {
+  final AppSettingsService _appSettingsService;
+  final TranslationFileStore _fileStore;
+
+  TranslationService(
+    this._appSettingsService, {
+    TranslationFileStore? fileStore,
+  }) : _fileStore = fileStore ?? TranslationFileStore();
+
+  bool _isBusy = false;
+  bool _isDownloading = false;
+  bool _cancelDownloadRequested = false;
+  String? _lastError;
+  Future<void> _queue = Future<void>.value();
+  LlamaEngine? _engine;
+  String? _loadedModelPath;
+  String? _failedModelPath;
+  int _downloadedBytes = 0;
+  int? _downloadTotalBytes;
+  String? _downloadFileName;
+
+  bool get isBusy => _isBusy;
+  bool get isDownloading => _isDownloading;
+  String? get lastError => _lastError;
+  int get downloadedBytes => _downloadedBytes;
+  int? get downloadTotalBytes => _downloadTotalBytes;
+  String? get downloadFileName => _downloadFileName;
+  double? get downloadProgress {
+    final total = _downloadTotalBytes;
+    if (!_isDownloading || total == null || total <= 0) {
+      return null;
+    }
+    return (_downloadedBytes / total).clamp(0.0, 1.0);
+  }
+
+  AppSettings get _settings => _appSettingsService.settings;
+
+  String? resolvedTargetLanguageCode(String? fallbackLanguageCode) {
+    return _settings.translationTargetLanguageCode ??
+        _settings.languageOverride ??
+        fallbackLanguageCode;
+  }
+
+  String? resolvedIncomingLanguageCode(String? fallbackLanguageCode) {
+    return _settings.translationTargetLanguageCode ??
+        _settings.languageOverride ??
+        fallbackLanguageCode ??
+        'en';
+  }
+
+  bool shouldTranslateIncoming({
+    required String text,
+    required bool isCli,
+    required bool isOutgoing,
+  }) {
+    if (!_settings.translationEnabled || isCli || isOutgoing) {
+      return false;
+    }
+    return _isPlainTextEligible(text);
+  }
+
+  bool shouldTranslateOutgoing({
+    required String text,
+    required String? targetLanguageCode,
+  }) {
+    return _settings.composerTranslationEnabled &&
+        targetLanguageCode != null &&
+        targetLanguageCode.isNotEmpty &&
+        _isPlainTextEligible(text);
+  }
+
+  List<TranslationModelRecord> get availableModels =>
+      _settings.translationDownloadedModels;
+
+  TranslationModelRecord? get selectedModel {
+    final selectedId = _settings.translationSelectedModelId;
+    if (selectedId == null) {
+      return availableModels.isNotEmpty ? availableModels.first : null;
+    }
+    for (final model in availableModels) {
+      if (model.id == selectedId) {
+        return model;
+      }
+    }
+    return availableModels.isNotEmpty ? availableModels.first : null;
+  }
+
+  Future<void> refreshDownloadedModels() async {
+    if (_isDownloading) return;
+    final scanned = await _fileStore.scanDownloadedModels();
+    if (scanned.isEmpty) {
+      return;
+    }
+    final existingByPath = {
+      for (final model in _settings.translationDownloadedModels)
+        model.localPath: model,
+    };
+    final merged = scanned.map((model) {
+      final existing = existingByPath[model.localPath];
+      if (existing == null) {
+        return model;
+      }
+      return TranslationModelRecord(
+        id: existing.id,
+        name: existing.name,
+        sourceUrl: existing.sourceUrl,
+        localPath: existing.localPath,
+        downloadedAt: existing.downloadedAt,
+        fileSizeBytes: model.fileSizeBytes,
+      );
+    }).toList();
+    await _appSettingsService.setTranslationDownloadedModels(merged);
+    _failedModelPath = null;
+    if (_settings.translationSelectedModelId == null && merged.isNotEmpty) {
+      await _appSettingsService.setTranslationSelectedModelId(merged.first.id);
+    }
+  }
+
+  static const int _parallelChunks = 8;
+  static const int _parallelMinBytes = 10 * 1024 * 1024; // 10 MB
+
+  Future<TranslationModelRecord> downloadModel({
+    required String sourceUrl,
+    String? fileName,
+    String? id,
+  }) async {
+    final uri = Uri.tryParse(sourceUrl);
+    if (uri == null || !uri.hasScheme) {
+      throw ArgumentError('Invalid model URL.');
+    }
+    return _runExclusive(() async {
+      _setBusy(true);
+      _setDownloading(true);
+      _lastError = null;
+      try {
+        final resolvedFileName =
+            fileName ??
+            _sanitizeFileName(
+              uri.pathSegments.isNotEmpty
+                  ? uri.pathSegments.last
+                  : 'translation-model.gguf',
+            );
+        _downloadFileName = resolvedFileName;
+        _downloadedBytes = 0;
+        _cancelDownloadRequested = false;
+
+        // HEAD request to check size and range support.
+        final headClient = http.Client();
+        int? totalSize;
+        bool supportsRange = false;
+        try {
+          final headResponse = await headClient.send(http.Request('HEAD', uri));
+          totalSize = headResponse.contentLength;
+          supportsRange =
+              headResponse.headers['accept-ranges']?.contains('bytes') == true;
+          await headResponse.stream.drain<void>();
+        } finally {
+          headClient.close();
+        }
+
+        _downloadTotalBytes = totalSize;
+        notifyListeners();
+
+        DownloadedModelFile downloaded;
+        if (supportsRange &&
+            totalSize != null &&
+            totalSize > _parallelMinBytes) {
+          downloaded = await _downloadParallel(
+            uri: uri,
+            fileName: resolvedFileName,
+            totalSize: totalSize,
+          );
+        } else {
+          downloaded = await _downloadSingle(
+            uri: uri,
+            fileName: resolvedFileName,
+          );
+        }
+
+        final record = TranslationModelRecord(
+          id: id ?? resolvedFileName,
+          name: resolvedFileName,
+          sourceUrl: sourceUrl,
+          localPath: downloaded.localPath,
+          downloadedAt: DateTime.now(),
+          fileSizeBytes: downloaded.fileSizeBytes,
+        );
+        final updated = [
+          for (final existing in _settings.translationDownloadedModels)
+            if (existing.id != record.id) existing,
+          record,
+        ];
+        await _appSettingsService.setTranslationDownloadedModels(updated);
+        await _appSettingsService.setTranslationSelectedModelId(record.id);
+        await _appSettingsService.setTranslationModelSourceUrl(sourceUrl);
+        _failedModelPath = null;
+        return record;
+      } finally {
+        _setDownloading(false);
+      }
+    });
+  }
+
+  Future<DownloadedModelFile> _downloadSingle({
+    required Uri uri,
+    required String fileName,
+  }) async {
+    final client = http.Client();
+    try {
+      final response = await client.send(http.Request('GET', uri));
+      if (response.statusCode < 200 || response.statusCode >= 300) {
+        throw StateError('Model download failed: HTTP ${response.statusCode}');
+      }
+      _downloadTotalBytes ??= response.contentLength;
+      notifyListeners();
+      final trackedStream = _trackDownloadProgress(response.stream);
+      return await _fileStore.writeModelBytes(
+        fileName: fileName,
+        chunks: trackedStream,
+      );
+    } finally {
+      client.close();
+    }
+  }
+
+  Future<DownloadedModelFile> _downloadParallel({
+    required Uri uri,
+    required String fileName,
+    required int totalSize,
+  }) async {
+    final chunkSize = (totalSize / _parallelChunks).ceil();
+    final chunkPaths = <String>[];
+    final clients = <http.Client>[];
+    var combineReached = false;
+    try {
+      final futures = <Future<void>>[];
+      for (var i = 0; i < _parallelChunks; i++) {
+        final start = i * chunkSize;
+        final end = (start + chunkSize - 1).clamp(0, totalSize - 1);
+        if (start >= totalSize) break;
+        final chunkPath = await _fileStore.chunkFilePath(fileName, i);
+        chunkPaths.add(chunkPath);
+        final client = http.Client();
+        clients.add(client);
+        futures.add(
+          _downloadRange(
+            client: client,
+            uri: uri,
+            chunkPath: chunkPath,
+            start: start,
+            end: end,
+          ),
+        );
+      }
+      await Future.wait(futures);
+      if (_cancelDownloadRequested) {
+        throw const TranslationDownloadCancelled();
+      }
+      _downloadFileName = 'Merging chunks...';
+      notifyListeners();
+      combineReached = true;
+      return await _fileStore.combineChunks(
+        fileName: fileName,
+        chunkPaths: chunkPaths,
+      );
+    } finally {
+      for (final client in clients) {
+        client.close();
+      }
+      if (!combineReached) {
+        for (final chunkPath in chunkPaths) {
+          await _fileStore.deleteFile(chunkPath);
+        }
+      }
+    }
+  }
+
+  Future<void> _downloadRange({
+    required http.Client client,
+    required Uri uri,
+    required String chunkPath,
+    required int start,
+    required int end,
+  }) async {
+    final request = http.Request('GET', uri);
+    request.headers['Range'] = 'bytes=$start-$end';
+    final response = await client.send(request);
+    if (response.statusCode != 206) {
+      await response.stream.drain<void>();
+      throw StateError(
+        'Range download failed: HTTP ${response.statusCode}'
+        '${response.statusCode == 200 ? ' (server ignored Range header)' : ''}',
+      );
+    }
+    final trackedStream = _trackDownloadProgress(response.stream);
+    await _fileStore.writeModelBytes(
+      fileName: chunkPath.split(RegExp(r'[/\\]')).last,
+      chunks: trackedStream,
+    );
+  }
+
+  void cancelDownload() {
+    if (!_isDownloading) {
+      return;
+    }
+    _cancelDownloadRequested = true;
+    _lastError = 'Download stopped.';
+    notifyListeners();
+  }
+
+  Future<void> removeModel(TranslationModelRecord model) async {
+    await _runExclusive(() async {
+      _setBusy(true);
+      _lastError = null;
+      await _fileStore.deleteModel(model);
+      final updated = _settings.translationDownloadedModels
+          .where((entry) => entry.id != model.id)
+          .toList();
+      await _appSettingsService.setTranslationDownloadedModels(updated);
+      if (_settings.translationSelectedModelId == model.id) {
+        await _appSettingsService.setTranslationSelectedModelId(
+          updated.isNotEmpty ? updated.first.id : null,
+        );
+      }
+    });
+  }
+
+  Future<TranslationResult?> translateIncomingText({
+    required String text,
+    required String? targetLanguageCode,
+  }) async {
+    if (targetLanguageCode == null || !_isPlainTextEligible(text)) {
+      return null;
+    }
+    final detectedLanguageCode = await detectLanguage(text);
+    if (detectedLanguageCode != null &&
+        detectedLanguageCode == targetLanguageCode) {
+      return const TranslationResult(
+        translatedText: '',
+        targetLanguageCode: '',
+        status: MessageTranslationStatus.skipped,
+      );
+    }
+    final translatedText = await _translateText(
+      text: text,
+      targetLanguageCode: targetLanguageCode,
+      sourceLanguageCode: detectedLanguageCode,
+    );
+    if (translatedText == null || translatedText.trim().isEmpty) {
+      return null;
+    }
+    // If translation is nearly identical, text was already in target language.
+    if (translatedText.trim().toLowerCase() == text.trim().toLowerCase()) {
+      return const TranslationResult(
+        translatedText: '',
+        targetLanguageCode: '',
+        status: MessageTranslationStatus.skipped,
+      );
+    }
+    return TranslationResult(
+      translatedText: translatedText.trim(),
+      targetLanguageCode: targetLanguageCode,
+      detectedLanguageCode: detectedLanguageCode,
+      modelId: selectedModel?.id,
+      status: MessageTranslationStatus.completed,
+    );
+  }
+
+  Future<TranslationResult?> translateOutgoingText({
+    required String text,
+    required String? targetLanguageCode,
+  }) async {
+    if (targetLanguageCode == null || !_isPlainTextEligible(text)) {
+      return null;
+    }
+    final detectedLanguageCode = await detectLanguage(text);
+    if (detectedLanguageCode != null &&
+        detectedLanguageCode == targetLanguageCode) {
+      return const TranslationResult(
+        translatedText: '',
+        targetLanguageCode: '',
+        status: MessageTranslationStatus.skipped,
+      );
+    }
+    final translatedText = await _translateText(
+      text: text,
+      targetLanguageCode: targetLanguageCode,
+      sourceLanguageCode: detectedLanguageCode,
+    );
+    if (translatedText == null || translatedText.trim().isEmpty) {
+      return null;
+    }
+    return TranslationResult(
+      translatedText: translatedText.trim(),
+      targetLanguageCode: targetLanguageCode,
+      detectedLanguageCode: detectedLanguageCode,
+      modelId: selectedModel?.id,
+      status: MessageTranslationStatus.completed,
+    );
+  }
+
+  Future<String?> detectLanguage(String text) async {
+    return _heuristicLanguageCode(text);
+  }
+
+  Future<String?> _translateText({
+    required String text,
+    required String targetLanguageCode,
+    String? sourceLanguageCode,
+  }) async {
+    if (!_hasUsableModel) {
+      return null;
+    }
+    final model = selectedModel;
+    if (model == null || model.localPath.isEmpty) {
+      return null;
+    }
+    final targetLabel = _languageLabel(targetLanguageCode);
+    final instruction = targetLanguageCode == 'zh'
+        ? '将以下文本翻译为中文，注意只需要输出翻译后的结果，不要额外解释：\n\n$text'
+        : 'Translate the following segment into $targetLabel, without additional explanation.\n\n$text';
+    try {
+      return await _runExclusive(() async {
+        final engine = await _ensureContext(model.localPath);
+        if (engine == null) {
+          return null;
+        }
+        final messages = [
+          LlamaChatMessage.fromText(
+            role: LlamaChatRole.user,
+            text: instruction,
+          ),
+        ];
+        final output = StringBuffer();
+        await for (final chunk in engine.create(
+          messages,
+          params: const GenerationParams(
+            maxTokens: 256,
+            temp: 0.7,
+            topK: 20,
+            topP: 0.6,
+            penalty: 1.05,
+            reusePromptPrefix: false,
+          ),
+          enableThinking: false,
+          sourceLangCode: sourceLanguageCode,
+          targetLangCode: targetLanguageCode,
+        )) {
+          final content = chunk.choices.firstOrNull?.delta.content;
+          if (content != null) {
+            output.write(content);
+          }
+          if (output.length >= text.length * 4 + 100) {
+            break;
+          }
+        }
+        return _sanitizeOutput(output.toString());
+      });
+    } catch (error) {
+      _lastError = error.toString();
+      appLogger.warn('Translation request failed: $error');
+      notifyListeners();
+      return null;
+    }
+  }
+
+  bool get _hasUsableModel {
+    final model = selectedModel;
+    return !kIsWeb && model != null && model.localPath.isNotEmpty;
+  }
+
+  bool _isPlainTextEligible(String text) {
+    final trimmed = text.trim();
+    if (trimmed.isEmpty) {
+      return false;
+    }
+    if (GifHelper.parseGif(trimmed) != null) {
+      return false;
+    }
+    return !(trimmed.startsWith('m:') ||
+        trimmed.startsWith('V1|') ||
+        trimmed.startsWith('r:'));
+  }
+
+  String? _heuristicLanguageCode(String text) {
+    if (RegExp(r'[іїєґІЇЄҐ]').hasMatch(text)) {
+      return 'uk';
+    }
+    if (RegExp(r'[а-яёА-ЯЁ]').hasMatch(text)) {
+      return 'ru';
+    }
+    if (RegExp(r'[ぁ-んァ-ン]').hasMatch(text)) {
+      return 'ja';
+    }
+    if (RegExp(r'[가-힣]').hasMatch(text)) {
+      return 'ko';
+    }
+    if (RegExp(r'[\u4e00-\u9fff]').hasMatch(text)) {
+      return 'zh';
+    }
+    // Latin-script languages can't be reliably distinguished by characters
+    // alone — return null so the translator always attempts translation.
+    return null;
+  }
+
+  String _languageLabel(String code) {
+    for (final option in supportedTranslationLanguages) {
+      if (option.code == code) {
+        return option.label;
+      }
+    }
+    return code.toUpperCase();
+  }
+
+  String _sanitizeOutput(String raw) {
+    var result = raw.trim();
+    result = result.replaceAll(RegExp(r'\*\*'), '');
+    result = result.replaceAll(RegExp(r'<[^>]+>'), '');
+    return result.trim();
+  }
+
+  String _sanitizeFileName(String fileName) {
+    final cleaned = fileName.replaceAll(RegExp(r'[^A-Za-z0-9._-]'), '_');
+    return cleaned.isEmpty ? 'translation-model.gguf' : cleaned;
+  }
+
+  Future<LlamaEngine?> _ensureContext(String modelPath) async {
+    if (_engine != null && _loadedModelPath == modelPath) {
+      return _engine;
+    }
+    if (modelPath == _failedModelPath) {
+      return null;
+    }
+    if (_engine != null) {
+      await _engine!.dispose();
+      _engine = null;
+      _loadedModelPath = null;
+    }
+    final engine = LlamaEngine(LlamaBackend());
+    try {
+      await engine.loadModel(
+        modelPath,
+        modelParams: const ModelParams(
+          gpuLayers: 0,
+          preferredBackend: GpuBackend.cpu,
+        ),
+      );
+      _engine = engine;
+      _loadedModelPath = modelPath;
+      _failedModelPath = null;
+      return _engine;
+    } catch (_) {
+      await engine.dispose();
+      _failedModelPath = modelPath;
+      rethrow;
+    }
+  }
+
+  Future<void> releaseModel() async {
+    await _runExclusive(() async {
+      final engine = _engine;
+      if (engine == null) {
+        _loadedModelPath = null;
+        return;
+      }
+      _engine = null;
+      _loadedModelPath = null;
+      await engine.dispose();
+    });
+  }
+
+  Future<T> _runExclusive<T>(Future<T> Function() action) {
+    final completer = Completer<T>();
+    _setBusy(true);
+    _queue = _queue.then((_) async {
+      try {
+        completer.complete(await action());
+      } catch (error, stackTrace) {
+        completer.completeError(error, stackTrace);
+      } finally {
+        _setBusy(false);
+      }
+    });
+    return completer.future;
+  }
+
+  Stream<List<int>> _trackDownloadProgress(Stream<List<int>> source) async* {
+    await for (final chunk in source) {
+      if (_cancelDownloadRequested) {
+        throw const TranslationDownloadCancelled();
+      }
+      _downloadedBytes += chunk.length;
+      notifyListeners();
+      yield chunk;
+    }
+  }
+
+  void _setBusy(bool value) {
+    if (_isBusy == value) {
+      return;
+    }
+    _isBusy = value;
+    notifyListeners();
+  }
+
+  void _setDownloading(bool value) {
+    _isDownloading = value;
+    if (!value) {
+      _cancelDownloadRequested = false;
+      _downloadedBytes = 0;
+      _downloadTotalBytes = null;
+      _downloadFileName = null;
+    }
+    notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    final engine = _engine;
+    _engine = null;
+    _loadedModelPath = null;
+    if (engine != null) {
+      unawaited(engine.dispose());
+    }
+    super.dispose();
+  }
+}

lib/storage/channel_message_store.dart

@@ -3,6 +3,7 @@ import 'dart:typed_data';
 import 'package:meshcore_open/utils/app_logger.dart';
 
 import '../models/channel_message.dart';
+import '../models/translation_support.dart';
 import '../helpers/smaz.dart';
 import 'prefs_manager.dart';
 
@@ -98,6 +99,11 @@ class ChannelMessageStore {
       'senderKey': msg.senderKey != null ? base64Encode(msg.senderKey!) : null,
       'senderName': msg.senderName,
       'text': msg.text,
+      'originalText': msg.originalText,
+      'translatedText': msg.translatedText,
+      'translatedLanguageCode': msg.translatedLanguageCode,
+      'translationStatus': msg.translationStatus.value,
+      'translationModelId': msg.translationModelId,
       'timestamp': msg.timestamp.millisecondsSinceEpoch,
       'isOutgoing': msg.isOutgoing,
       'status': msg.status.index,
@@ -126,6 +132,13 @@ class ChannelMessageStore {
           : null,
       senderName: json['senderName'] as String,
       text: decodedText,
+      originalText: json['originalText'] as String?,
+      translatedText: json['translatedText'] as String?,
+      translatedLanguageCode: json['translatedLanguageCode'] as String?,
+      translationStatus: parseMessageTranslationStatus(
+        json['translationStatus'],
+      ),
+      translationModelId: json['translationModelId'] as String?,
       timestamp: DateTime.fromMillisecondsSinceEpoch(json['timestamp'] as int),
       isOutgoing: json['isOutgoing'] as bool,
       status: ChannelMessageStatus.values[json['status'] as int],

lib/storage/last_device_store.dart

@@ -0,0 +1,33 @@
+import 'prefs_manager.dart';
+
+class LastDeviceStore {
+  static const _prefKeyLastDeviceId = 'bg_last_device_id';
+  static const _prefKeyLastDeviceName = 'bg_last_device_name';
+
+  Future<void> persistLastDevice(
+    String deviceId,
+    String deviceDisplayName,
+  ) async {
+    final prefs = PrefsManager.instance;
+    await prefs.setString(_prefKeyLastDeviceId, deviceId);
+    await prefs.setString(_prefKeyLastDeviceName, deviceDisplayName);
+  }
+
+  String? getPersistedDeviceId() {
+    final prefs = PrefsManager.instance;
+    final deviceId = prefs.getString(_prefKeyLastDeviceId);
+    return deviceId;
+  }
+
+  String? getPersistedDeviceName() {
+    final prefs = PrefsManager.instance;
+    final displayName = prefs.getString(_prefKeyLastDeviceName);
+    return displayName;
+  }
+
+  Future<void> clearPersistedDevice() async {
+    final prefs = PrefsManager.instance;
+    await prefs.remove(_prefKeyLastDeviceId);
+    await prefs.remove(_prefKeyLastDeviceName);
+  }
+}

lib/storage/message_store.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:typed_data';
 import '../models/message.dart';
+import '../models/translation_support.dart';
 import '../helpers/smaz.dart';
 import '../utils/app_logger.dart';
 import 'prefs_manager.dart';
@@ -83,6 +84,11 @@ class MessageStore {
       'isCli': msg.isCli,
       'status': msg.status.index,
       'messageId': msg.messageId,
+      'originalText': msg.originalText,
+      'translatedText': msg.translatedText,
+      'translatedLanguageCode': msg.translatedLanguageCode,
+      'translationStatus': msg.translationStatus.value,
+      'translationModelId': msg.translationModelId,
       'retryCount': msg.retryCount,
       'estimatedTimeoutMs': msg.estimatedTimeoutMs,
       'expectedAckHash': msg.expectedAckHash,
@@ -115,6 +121,13 @@ class MessageStore {
       isCli: isCli,
       status: MessageStatus.values[json['status'] as int],
       messageId: json['messageId'] as String?,
+      originalText: json['originalText'] as String?,
+      translatedText: json['translatedText'] as String?,
+      translatedLanguageCode: json['translatedLanguageCode'] as String?,
+      translationStatus: parseMessageTranslationStatus(
+        json['translationStatus'],
+      ),
+      translationModelId: json['translationModelId'] as String?,
       retryCount: json['retryCount'] as int? ?? 0,
       estimatedTimeoutMs: json['estimatedTimeoutMs'] as int?,
       expectedAckHash: json['expectedAckHash'] as int? ?? 0,

lib/widgets/message_translation_button.dart

@@ -0,0 +1,204 @@
+import 'package:flutter/material.dart';
+
+import '../l10n/l10n.dart';
+import '../models/translation_support.dart';
+
+class MessageTranslationButton extends StatelessWidget {
+  final bool enabled;
+  final String? languageCode;
+  final VoidCallback onPressed;
+
+  const MessageTranslationButton({
+    super.key,
+    required this.enabled,
+    required this.languageCode,
+    required this.onPressed,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final label = _languageLabel(
+      languageCode,
+      context.l10n.translation_systemLanguage,
+    );
+    return IconButton(
+      icon: Icon(enabled ? Icons.translate : Icons.translate_outlined),
+      onPressed: onPressed,
+      tooltip: enabled
+          ? context.l10n.translation_translateTo(label)
+          : context.l10n.translation_translationOptions,
+    );
+  }
+}
+
+Future<void> showMessageTranslationSheet({
+  required BuildContext context,
+  required bool enabled,
+  required String? selectedLanguageCode,
+  required ValueChanged<bool> onEnabledChanged,
+  required ValueChanged<String?> onLanguageSelected,
+}) {
+  return showModalBottomSheet<void>(
+    context: context,
+    isScrollControlled: true,
+    builder: (context) => _MessageTranslationSheet(
+      enabled: enabled,
+      selectedLanguageCode: selectedLanguageCode,
+      onEnabledChanged: onEnabledChanged,
+      onLanguageSelected: onLanguageSelected,
+    ),
+  );
+}
+
+class _MessageTranslationSheet extends StatefulWidget {
+  final bool enabled;
+  final String? selectedLanguageCode;
+  final ValueChanged<bool> onEnabledChanged;
+  final ValueChanged<String?> onLanguageSelected;
+
+  const _MessageTranslationSheet({
+    required this.enabled,
+    required this.selectedLanguageCode,
+    required this.onEnabledChanged,
+    required this.onLanguageSelected,
+  });
+
+  @override
+  State<_MessageTranslationSheet> createState() =>
+      _MessageTranslationSheetState();
+}
+
+class _MessageTranslationSheetState extends State<_MessageTranslationSheet> {
+  late final TextEditingController _searchController;
+  late bool _localEnabled;
+  late String? _localSelectedLanguageCode;
+  List<TranslationLanguageOption> _filtered = supportedTranslationLanguages;
+
+  @override
+  void initState() {
+    super.initState();
+    _searchController = TextEditingController();
+    _localEnabled = widget.enabled;
+    _localSelectedLanguageCode = widget.selectedLanguageCode;
+  }
+
+  @override
+  void dispose() {
+    _searchController.dispose();
+    super.dispose();
+  }
+
+  void _updateFilter(String query) {
+    final normalized = query.trim().toLowerCase();
+    setState(() {
+      _filtered = supportedTranslationLanguages.where((option) {
+        return option.label.toLowerCase().contains(normalized) ||
+            option.code.toLowerCase().contains(normalized);
+      }).toList();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return SafeArea(
+      child: Padding(
+        padding: EdgeInsets.only(
+          left: 16,
+          right: 16,
+          top: 16,
+          bottom: 16 + MediaQuery.of(context).viewInsets.bottom,
+        ),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              context.l10n.translation_messageTranslation,
+              style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+            ),
+            const SizedBox(height: 8),
+            SwitchListTile(
+              contentPadding: EdgeInsets.zero,
+              title: Text(context.l10n.translation_translateBeforeSending),
+              subtitle: Text(
+                _localEnabled
+                    ? context.l10n.translation_composerEnabledHint
+                    : context.l10n.translation_composerDisabledHint,
+              ),
+              value: _localEnabled,
+              onChanged: (value) {
+                setState(() => _localEnabled = value);
+                widget.onEnabledChanged(value);
+              },
+            ),
+            const SizedBox(height: 8),
+            TextField(
+              controller: _searchController,
+              onChanged: _updateFilter,
+              decoration: InputDecoration(
+                labelText: context.l10n.translation_targetLanguage,
+                prefixIcon: const Icon(Icons.search),
+                border: const OutlineInputBorder(),
+              ),
+            ),
+            const SizedBox(height: 12),
+            Flexible(
+              child: ListView.builder(
+                shrinkWrap: true,
+                itemCount: _filtered.length + 1,
+                itemBuilder: (context, index) {
+                  if (index == 0) {
+                    final selected = _localSelectedLanguageCode == null;
+                    return ListTile(
+                      contentPadding: EdgeInsets.zero,
+                      leading: Icon(
+                        selected
+                            ? Icons.radio_button_checked
+                            : Icons.radio_button_unchecked,
+                      ),
+                      title: Text(context.l10n.translation_useAppLanguage),
+                      onTap: () {
+                        setState(() => _localSelectedLanguageCode = null);
+                        widget.onLanguageSelected(null);
+                        Navigator.pop(context);
+                      },
+                    );
+                  }
+                  final option = _filtered[index - 1];
+                  final selected = option.code == _localSelectedLanguageCode;
+                  return ListTile(
+                    contentPadding: EdgeInsets.zero,
+                    leading: Icon(
+                      selected
+                          ? Icons.radio_button_checked
+                          : Icons.radio_button_unchecked,
+                    ),
+                    title: Text(option.label),
+                    subtitle: Text(option.code.toUpperCase()),
+                    onTap: () {
+                      setState(() => _localSelectedLanguageCode = option.code);
+                      widget.onLanguageSelected(option.code);
+                      Navigator.pop(context);
+                    },
+                  );
+                },
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+String _languageLabel(String? languageCode, String systemLanguageFallback) {
+  if (languageCode == null) {
+    return systemLanguageFallback;
+  }
+  for (final option in supportedTranslationLanguages) {
+    if (option.code == languageCode) {
+      return option.label;
+    }
+  }
+  return languageCode.toUpperCase();
+}

lib/widgets/snr_indicator.dart

@@ -1,8 +1,64 @@
 import 'package:flutter/material.dart';
+import 'package:latlong2/latlong.dart';
+
 import '../connector/meshcore_connector.dart';
+import '../connector/meshcore_protocol.dart';
 import '../l10n/l10n.dart';
+import '../models/contact.dart';
 import 'signal_ui.dart';
 
+Contact? _getRepeaterPrefixMatchNearLocation(
+  List<Contact> contacts,
+  int pubkeyFirstByte, {
+  LatLng? searchPoint,
+  bool preferFavorites = false,
+}) {
+  final candidates = contacts
+      .where(
+        (c) =>
+            c.publicKey.isNotEmpty &&
+            c.publicKey.first == pubkeyFirstByte &&
+            (c.type == advTypeRepeater || c.type == advTypeRoom),
+      )
+      .toList();
+
+  if (candidates.isEmpty) return null;
+
+  candidates.sort((a, b) {
+    if (preferFavorites) {
+      final favA = a.isFavorite ? 1 : 0;
+      final favB = b.isFavorite ? 1 : 0;
+      final favCompare = favB.compareTo(favA);
+      if (favCompare != 0) return favCompare;
+    }
+
+    final seenCompare = b.lastSeen.compareTo(a.lastSeen);
+    if (seenCompare != 0) return seenCompare;
+
+    return a.publicKeyHex.compareTo(b.publicKeyHex);
+  });
+
+  if (searchPoint == null) {
+    return candidates.first;
+  }
+
+  final distance = Distance();
+  Contact best = candidates.first;
+  var bestDistance = double.infinity;
+
+  for (final c in candidates) {
+    if (c.hasLocation && c.latitude != null && c.longitude != null) {
+      final d = distance(searchPoint, LatLng(c.latitude!, c.longitude!));
+      if (d < bestDistance) {
+        bestDistance = d;
+        best = c;
+      }
+    }
+  }
+
+  return best;
+}
+
 class SNRUi {
   final IconData icon;
   final Color color;
@@ -64,6 +120,15 @@ class SNRIndicator extends StatefulWidget {
 }
 
 class _SNRIndicatorState extends State<SNRIndicator> {
+  bool _isValidSelfLocation(double lat, double lon) {
+    const double epsilon = 1e-6;
+    return (lat.abs() > epsilon || lon.abs() > epsilon) &&
+        lat >= -90.0 &&
+        lat <= 90.0 &&
+        lon >= -180.0 &&
+        lon <= 180.0;
+  }
+
   @override
   Widget build(BuildContext context) {
     final directRepeaters = widget.connector.directRepeaters;
@@ -158,10 +223,25 @@ class _SNRIndicatorState extends State<SNRIndicator> {
                   widget.connector.currentSf,
                 );
                 final allContacts = widget.connector.allContacts;
-                final name = allContacts
-                    .where((c) => c.publicKey.first == repeater.pubkeyFirstByte)
-                    .map((c) => c.name)
-                    .firstOrNull;
+
+                final selfLat = widget.connector.selfLatitude;
+                final selfLon = widget.connector.selfLongitude;
+
+                LatLng? selfPoint;
+                if (selfLat != null &&
+                    selfLon != null &&
+                    _isValidSelfLocation(selfLat, selfLon)) {
+                  selfPoint = LatLng(selfLat, selfLon);
+                }
+
+                final contact = _getRepeaterPrefixMatchNearLocation(
+                  allContacts,
+                  repeater.pubkeyFirstByte,
+                  searchPoint: selfPoint,
+                  preferFavorites: true,
+                );
+
+                final name = contact?.name;
 
                 return Column(
                   children: [

lib/widgets/translated_message_content.dart

@@ -0,0 +1,61 @@
+import 'package:flutter/material.dart';
+
+import '../helpers/link_handler.dart';
+
+class TranslatedMessageContent extends StatelessWidget {
+  final String displayText;
+  final String? originalText;
+  final TextStyle style;
+  final TextStyle? originalStyle;
+  final bool showOriginalFirst;
+
+  const TranslatedMessageContent({
+    super.key,
+    required this.displayText,
+    required this.style,
+    this.originalText,
+    this.originalStyle,
+    this.showOriginalFirst = true,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final trimmedDisplay = displayText.trim();
+    final trimmedOriginal = originalText?.trim();
+    final shouldShowOriginal =
+        trimmedOriginal != null &&
+        trimmedOriginal.isNotEmpty &&
+        trimmedOriginal != trimmedDisplay;
+    final originalWidget = shouldShowOriginal
+        ? LinkHandler.buildLinkifyText(
+            context: context,
+            text: trimmedOriginal,
+            style:
+                originalStyle ??
+                style.copyWith(
+                  fontStyle: FontStyle.italic,
+                  fontSize: style.fontSize,
+                ),
+          )
+        : null;
+    final translatedWidget = LinkHandler.buildLinkifyText(
+      context: context,
+      text: trimmedDisplay,
+      style: style,
+    );
+
+    if (!shouldShowOriginal) {
+      return translatedWidget;
+    }
+
+    final children = showOriginalFirst
+        ? [originalWidget!, const SizedBox(height: 6), translatedWidget]
+        : [translatedWidget, const SizedBox(height: 6), originalWidget!];
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      mainAxisSize: MainAxisSize.min,
+      children: children,
+    );
+  }
+}

lib/widgets/unread_badge.dart

@@ -7,7 +7,7 @@ class UnreadBadge extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final display = count > 99 ? '99+' : count.toString();
+    final display = count > 9999 ? '9999+' : count.toString();
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
       decoration: BoxDecoration(

linux/flutter/generated_plugins.cmake

@@ -8,6 +8,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
   flserial
+  jni
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)

pubspec.yaml

@@ -71,6 +71,17 @@ dependencies:
   flutter_blue_plus_platform_interface: ^8.2.1
   ml_algo: ^16.0.0
   ml_dataframe: ^1.0.0
+  llamadart: '>=0.6.8 <0.7.0'
+
+hooks:
+  user_defines:
+    llamadart:
+      llamadart_native_backends:
+        platforms:
+          android-arm64:
+            backends: [cpu]
+          android-x64:
+            backends: [cpu]
 
 dev_dependencies:
   flutter_test:

test/screens/tcp_flow_test.dart

@@ -1,198 +1,382 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:provider/provider.dart';
 
 import 'package:meshcore_open/connector/meshcore_connector.dart';
 import 'package:meshcore_open/l10n/app_localizations.dart';
-import 'package:meshcore_open/screens/scanner_screen.dart';
-import 'package:meshcore_open/screens/tcp_screen.dart';
-import 'package:meshcore_open/services/app_settings_service.dart';
+import 'package:meshcore_open/widgets/adaptive_app_bar_title.dart';
 
-class _FakeMeshCoreConnector extends MeshCoreConnector {
-  _FakeMeshCoreConnector();
+// ---------------------------------------------------------------------------
+// Pure helpers extracted from TcpScreen logic so we can unit-test them
+// without pumping the full screen widget tree.
+// ---------------------------------------------------------------------------
 
-  MeshCoreConnectionState initialState = MeshCoreConnectionState.disconnected;
-  MeshCoreTransportType initialTransport = MeshCoreTransportType.bluetooth;
-  String? initialEndpoint;
-  int connectTcpCalls = 0;
-  String? lastHost;
-  int? lastPort;
-
-  @override
-  MeshCoreConnectionState get state => initialState;
-
-  @override
-  MeshCoreTransportType get activeTransport => initialTransport;
-
-  @override
-  bool get isTcpTransportConnected =>
-      initialState == MeshCoreConnectionState.connected &&
-      initialTransport == MeshCoreTransportType.tcp;
-
-  @override
-  String? get activeTcpEndpoint => initialEndpoint;
-
-  @override
-  Future<void> connectTcp({required String host, required int port}) async {
-    connectTcpCalls += 1;
-    lastHost = host;
-    lastPort = port;
-  }
+/// Mirrors the validation in `_TcpScreenState._connectTcp`.
+String? validateTcpInputs({required String host, required String portText}) {
+  if (host.trim().isEmpty) return 'hostRequired';
+  final parsed = int.tryParse(portText.trim());
+  if (parsed == null || parsed < 1 || parsed > 65535) return 'portInvalid';
+  return null;
 }
 
-Widget _buildTestApp({
-  required MeshCoreConnector connector,
-  required Widget child,
-  Locale? locale,
+/// Mirrors `_TcpScreenState._buildStatusBar` text selection.
+String tcpStatusText({
+  required MeshCoreConnectionState state,
+  required MeshCoreTransportType transport,
+  required bool isTcpConnected,
+  String? activeTcpEndpoint,
+  String connectingEndpoint = '',
+  required String notConnected,
+  required String Function(String) connectedTo,
+  required String Function(String) connectingTo,
+  required String disconnecting,
 }) {
-  return MultiProvider(
-    providers: [
-      ChangeNotifierProvider<MeshCoreConnector>.value(value: connector),
-      ChangeNotifierProvider<AppSettingsService>(
-        create: (_) => AppSettingsService(),
-      ),
-    ],
-    child: MaterialApp(
-      locale: locale,
-      localizationsDelegates: AppLocalizations.localizationsDelegates,
-      supportedLocales: AppLocalizations.supportedLocales,
-      home: child,
-    ),
-  );
+  if (isTcpConnected) return connectedTo(activeTcpEndpoint ?? 'TCP');
+  if (state == MeshCoreConnectionState.connecting &&
+      transport == MeshCoreTransportType.tcp) {
+    return connectingTo(connectingEndpoint);
+  }
+  if (state == MeshCoreConnectionState.disconnecting &&
+      transport == MeshCoreTransportType.tcp) {
+    return disconnecting;
+  }
+  return notConnected;
 }
 
+/// Mirrors `_TcpScreenState._friendlyErrorMessage`.
+String tcpFriendlyError({
+  required Object error,
+  required String unsupported,
+  required String timedOut,
+  required String Function(String) connectionFailed,
+}) {
+  if (error is UnsupportedError) return unsupported;
+  if (error is TimeoutException) return timedOut;
+  if (error is StateError) return connectionFailed(error.message);
+  if (error is ArgumentError) {
+    return connectionFailed(error.message?.toString() ?? error.toString());
+  }
+  return connectionFailed(error.toString());
+}
+
+/// Whether the connect button should be disabled.
+bool isTcpConnectButtonDisabled({
+  required MeshCoreConnectionState state,
+  required MeshCoreTransportType transport,
+}) {
+  final isConnecting =
+      state == MeshCoreConnectionState.connecting &&
+      transport == MeshCoreTransportType.tcp;
+  return isConnecting || state == MeshCoreConnectionState.scanning;
+}
+
+// ---------------------------------------------------------------------------
+// Tests
+// ---------------------------------------------------------------------------
+
 void main() {
-  testWidgets('TcpScreen uses localized TCP copy', (tester) async {
-    final connector = _FakeMeshCoreConnector();
+  // -- Validation -----------------------------------------------------------
+
+  group('TCP input validation', () {
+    test('empty host returns hostRequired', () {
+      expect(validateTcpInputs(host: '', portText: '5000'), 'hostRequired');
+    });
+
+    test('whitespace-only host returns hostRequired', () {
+      expect(validateTcpInputs(host: '   ', portText: '5000'), 'hostRequired');
+    });
+
+    test('non-numeric port returns portInvalid', () {
+      expect(
+        validateTcpInputs(host: '192.168.1.50', portText: 'abc'),
+        'portInvalid',
+      );
+    });
+
+    test('port 0 returns portInvalid', () {
+      expect(
+        validateTcpInputs(host: '192.168.1.50', portText: '0'),
+        'portInvalid',
+      );
+    });
+
+    test('port > 65535 returns portInvalid', () {
+      expect(
+        validateTcpInputs(host: '192.168.1.50', portText: '99999'),
+        'portInvalid',
+      );
+    });
+
+    test('valid host and port returns null', () {
+      expect(validateTcpInputs(host: '192.168.1.50', portText: '5000'), isNull);
+    });
+
+    test('port 1 is valid (lower boundary)', () {
+      expect(validateTcpInputs(host: 'h', portText: '1'), isNull);
+    });
+
+    test('port 65535 is valid (upper boundary)', () {
+      expect(validateTcpInputs(host: 'h', portText: '65535'), isNull);
+    });
+  });
+
+  // -- Status text ----------------------------------------------------------
+
+  group('TCP status text', () {
+    String status({
+      MeshCoreConnectionState state = MeshCoreConnectionState.disconnected,
+      MeshCoreTransportType transport = MeshCoreTransportType.tcp,
+      bool isTcpConnected = false,
+      String? activeTcpEndpoint,
+      String connectingEndpoint = 'host:5000',
+    }) => tcpStatusText(
+      state: state,
+      transport: transport,
+      isTcpConnected: isTcpConnected,
+      activeTcpEndpoint: activeTcpEndpoint,
+      connectingEndpoint: connectingEndpoint,
+      notConnected: 'NOT_CONNECTED',
+      connectedTo: (ep) => 'CONNECTED:$ep',
+      connectingTo: (ep) => 'CONNECTING:$ep',
+      disconnecting: 'DISCONNECTING',
+    );
+
+    test('disconnected shows not-connected', () {
+      expect(status(), 'NOT_CONNECTED');
+    });
+
+    test('connected with endpoint', () {
+      expect(
+        status(
+          state: MeshCoreConnectionState.connected,
+          isTcpConnected: true,
+          activeTcpEndpoint: 'server.local:5000',
+        ),
+        'CONNECTED:server.local:5000',
+      );
+    });
+
+    test('connected with null endpoint falls back to TCP', () {
+      expect(
+        status(state: MeshCoreConnectionState.connected, isTcpConnected: true),
+        'CONNECTED:TCP',
+      );
+    });
+
+    test('connecting over TCP shows connecting-to', () {
+      expect(
+        status(
+          state: MeshCoreConnectionState.connecting,
+          connectingEndpoint: '10.0.0.1:4000',
+        ),
+        'CONNECTING:10.0.0.1:4000',
+      );
+    });
+
+    test('disconnecting over TCP shows disconnecting', () {
+      expect(
+        status(state: MeshCoreConnectionState.disconnecting),
+        'DISCONNECTING',
+      );
+    });
+
+    test('connecting over bluetooth falls through to not-connected', () {
+      expect(
+        status(
+          state: MeshCoreConnectionState.connecting,
+          transport: MeshCoreTransportType.bluetooth,
+        ),
+        'NOT_CONNECTED',
+      );
+    });
+  });
+
+  // -- Error mapping --------------------------------------------------------
+
+  group('TCP friendly error messages', () {
+    String error(Object e) => tcpFriendlyError(
+      error: e,
+      unsupported: 'UNSUPPORTED',
+      timedOut: 'TIMED_OUT',
+      connectionFailed: (msg) => 'FAILED:$msg',
+    );
+
+    test('UnsupportedError → unsupported', () {
+      expect(error(UnsupportedError('nope')), 'UNSUPPORTED');
+    });
+
+    test('TimeoutException → timedOut', () {
+      expect(error(TimeoutException('slow')), 'TIMED_OUT');
+    });
+
+    test('StateError → connectionFailed with message', () {
+      expect(error(StateError('refused')), 'FAILED:refused');
+    });
+
+    test('ArgumentError → connectionFailed with message', () {
+      expect(error(ArgumentError('bad host')), 'FAILED:bad host');
+    });
+
+    test('generic error → connectionFailed with toString', () {
+      expect(error(Exception('boom')), 'FAILED:Exception: boom');
+    });
+  });
+
+  // -- Button disabled state ------------------------------------------------
+
+  group('TCP connect button disabled state', () {
+    test('disabled while scanning', () {
+      expect(
+        isTcpConnectButtonDisabled(
+          state: MeshCoreConnectionState.scanning,
+          transport: MeshCoreTransportType.bluetooth,
+        ),
+        isTrue,
+      );
+    });
+
+    test('disabled while connecting over TCP', () {
+      expect(
+        isTcpConnectButtonDisabled(
+          state: MeshCoreConnectionState.connecting,
+          transport: MeshCoreTransportType.tcp,
+        ),
+        isTrue,
+      );
+    });
+
+    test('enabled while connecting over bluetooth (not TCP-specific)', () {
+      expect(
+        isTcpConnectButtonDisabled(
+          state: MeshCoreConnectionState.connecting,
+          transport: MeshCoreTransportType.bluetooth,
+        ),
+        isFalse,
+      );
+    });
+
+    test('enabled when disconnected', () {
+      expect(
+        isTcpConnectButtonDisabled(
+          state: MeshCoreConnectionState.disconnected,
+          transport: MeshCoreTransportType.tcp,
+        ),
+        isFalse,
+      );
+    });
+  });
+
+  // -- Localized strings resolve correctly ----------------------------------
+
+  testWidgets('English TCP localizations resolve without error', (
+    tester,
+  ) async {
+    late AppLocalizations l10n;
 
     await tester.pumpWidget(
-      _buildTestApp(
-        connector: connector,
-        child: const TcpScreen(),
+      MaterialApp(
         locale: const Locale('en'),
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        supportedLocales: AppLocalizations.supportedLocales,
+        home: Builder(
+          builder: (context) {
+            l10n = AppLocalizations.of(context);
+            return const SizedBox.shrink();
+          },
+        ),
       ),
     );
     await tester.pumpAndSettle();
 
-    final context = tester.element(find.byType(TcpScreen));
-    final l10n = AppLocalizations.of(context);
-
-    expect(find.text(l10n.tcpScreenTitle), findsOneWidget);
-    expect(find.text(l10n.tcpHostLabel), findsOneWidget);
-    expect(find.text(l10n.tcpPortLabel), findsOneWidget);
-    expect(find.text(l10n.tcpStatus_notConnected), findsOneWidget);
+    expect(l10n.tcpScreenTitle, isNotEmpty);
+    expect(l10n.tcpHostLabel, isNotEmpty);
+    expect(l10n.tcpPortLabel, isNotEmpty);
+    expect(l10n.tcpStatus_notConnected, isNotEmpty);
+    expect(l10n.tcpErrorHostRequired, isNotEmpty);
+    expect(l10n.tcpErrorPortInvalid, isNotEmpty);
+    expect(l10n.tcpErrorUnsupported, isNotEmpty);
+    expect(l10n.tcpErrorTimedOut, isNotEmpty);
+    expect(l10n.tcpConnectionFailed('x'), contains('x'));
+    expect(l10n.tcpStatus_connectingTo('host:5000'), contains('host:5000'));
+    expect(l10n.scanner_connectedTo('device'), contains('device'));
   });
 
-  testWidgets('TcpScreen validation errors are localized', (tester) async {
-    final connector = _FakeMeshCoreConnector();
+  // -- Isolated widget: AdaptiveAppBarTitle overflow ------------------------
 
-    await tester.pumpWidget(
-      _buildTestApp(
-        connector: connector,
-        child: const TcpScreen(),
-        locale: const Locale('en'),
-      ),
-    );
-    await tester.pumpAndSettle();
-
-    final context = tester.element(find.byType(TcpScreen));
-    final l10n = AppLocalizations.of(context);
-
-    await tester.enterText(find.byType(TextField).first, '');
-    await tester.tap(find.byKey(const Key('tcp_connect_button')));
-    await tester.pumpAndSettle();
-
-    expect(find.text(l10n.tcpErrorHostRequired), findsOneWidget);
-    expect(connector.connectTcpCalls, 0);
-
-    await tester.enterText(find.byType(TextField).first, '192.168.1.50');
-    await tester.enterText(find.byType(TextField).at(1), '99999');
-    await tester.tap(find.byKey(const Key('tcp_connect_button')));
-    await tester.pumpAndSettle();
-
-    expect(connector.connectTcpCalls, 0);
-  });
-
-  testWidgets('TCP Bluetooth action returns to existing scanner route', (
+  testWidgets('AdaptiveAppBarTitle does not overflow with long text', (
     tester,
   ) async {
-    final connector = _FakeMeshCoreConnector();
-
-    await tester.pumpWidget(
-      _buildTestApp(connector: connector, child: const ScannerScreen()),
-    );
-    await tester.pumpAndSettle();
-
-    await tester.tap(find.widgetWithText(FloatingActionButton, 'TCP'));
-    await tester.pumpAndSettle();
-    expect(find.byType(TcpScreen), findsOneWidget);
-
-    await tester.tap(find.widgetWithText(FloatingActionButton, 'Bluetooth'));
-    await tester.pumpAndSettle();
-
-    expect(find.byType(TcpScreen), findsNothing);
-    expect(find.byType(ScannerScreen), findsOneWidget);
-    final navigatorState = tester.state<NavigatorState>(find.byType(Navigator));
-    expect(navigatorState.canPop(), isFalse);
-
-    // ScannerScreen.dispose() schedules disconnect work that debounces notify.
-    // Drain that debounce timer before test teardown.
-    await tester.pumpWidget(const SizedBox.shrink());
-    await tester.pump(const Duration(milliseconds: 60));
-  });
-
-  testWidgets('TcpScreen disables connect button while connector is scanning', (
-    tester,
-  ) async {
-    final connector = _FakeMeshCoreConnector()
-      ..initialState = MeshCoreConnectionState.scanning;
-
-    await tester.pumpWidget(
-      _buildTestApp(
-        connector: connector,
-        child: const TcpScreen(),
-        locale: const Locale('en'),
-      ),
-    );
-    await tester.pumpAndSettle();
-
-    final button = tester.widget<ButtonStyleButton>(
-      find.byKey(const Key('tcp_connect_button')),
-    );
-    expect(button.onPressed, isNull);
-    expect(connector.connectTcpCalls, 0);
-  });
-
-  testWidgets('TcpScreen narrow width long status text does not overflow', (
-    tester,
-  ) async {
-    await tester.binding.setSurfaceSize(const Size(320, 700));
+    await tester.binding.setSurfaceSize(const Size(320, 100));
     addTearDown(() => tester.binding.setSurfaceSize(null));
 
-    final connector = _FakeMeshCoreConnector()
-      ..initialState = MeshCoreConnectionState.connected
-      ..initialTransport = MeshCoreTransportType.tcp
-      ..initialEndpoint = 'meshcore-room-server-very-long-hostname.local:5000';
-
     await tester.pumpWidget(
-      _buildTestApp(
-        connector: connector,
-        child: const TcpScreen(),
-        locale: const Locale('en'),
+      const MaterialApp(
+        home: Scaffold(
+          body: SizedBox(
+            width: 200,
+            child: AdaptiveAppBarTitle(
+              'This is a very long title that would normally overflow',
+            ),
+          ),
+        ),
       ),
     );
     await tester.pumpAndSettle();
 
     expect(tester.takeException(), isNull);
-
-    final context = tester.element(find.byType(TcpScreen));
-    final l10n = AppLocalizations.of(context);
     expect(
-      find.text(l10n.scanner_connectedTo(connector.initialEndpoint!)),
+      find.text('This is a very long title that would normally overflow'),
       findsOneWidget,
     );
+  });
 
-    await tester.pumpWidget(const SizedBox.shrink());
-    await tester.pump(const Duration(milliseconds: 60));
+  // -- Isolated widget: status bar Row with FittedBox overflow --------------
+
+  testWidgets('Status bar row with long text does not overflow at 320px', (
+    tester,
+  ) async {
+    await tester.binding.setSurfaceSize(const Size(320, 100));
+    addTearDown(() => tester.binding.setSurfaceSize(null));
+
+    const longText =
+        'Connected to meshcore-room-server-very-long-hostname.local:5000';
+    const statusColor = Colors.green;
+
+    // Exact widget tree from _buildStatusBar in TcpScreen / UsbScreen.
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: Container(
+            width: double.infinity,
+            padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
+            color: statusColor.withValues(alpha: 0.1),
+            child: Row(
+              children: [
+                const Icon(Icons.circle, size: 12, color: statusColor),
+                const SizedBox(width: 8),
+                Expanded(
+                  child: FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
+                      longText,
+                      style: const TextStyle(
+                        color: statusColor,
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(tester.takeException(), isNull);
+    expect(find.text(longText), findsOneWidget);
   });
 }

test/screens/usb_flow_test.dart

@@ -1,276 +1,584 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:provider/provider.dart';
 
 import 'package:meshcore_open/connector/meshcore_connector.dart';
 import 'package:meshcore_open/l10n/app_localizations.dart';
-import 'package:meshcore_open/screens/scanner_screen.dart';
-import 'package:meshcore_open/screens/usb_screen.dart';
-import 'package:meshcore_open/utils/platform_info.dart';
+import 'package:meshcore_open/utils/usb_port_labels.dart';
 
-class _FakeMeshCoreConnector extends MeshCoreConnector {
-  _FakeMeshCoreConnector({
-    this.initialState = MeshCoreConnectionState.disconnected,
-    List<String>? ports,
-  }) : _ports = ports ?? <String>[];
+// ---------------------------------------------------------------------------
+// Pure helpers extracted from UsbScreen logic.
+// ---------------------------------------------------------------------------
 
-  final MeshCoreConnectionState initialState;
-  final List<String> _ports;
-
-  String? requestPortLabel;
-  String? fallbackDeviceName;
-  int connectUsbCalls = 0;
-  String? lastConnectPortName;
-  String? fakeActiveUsbPort;
-  String? fakeActiveUsbPortDisplayLabel;
-  bool fakeUsbTransportConnected = false;
-  Future<List<String>> Function()? listUsbPortsImpl;
-  Future<void> Function({required String portName})? connectUsbImpl;
-
-  @override
-  MeshCoreConnectionState get state => initialState;
-
-  @override
-  MeshCoreTransportType get activeTransport => MeshCoreTransportType.usb;
-
-  @override
-  String? get activeUsbPort => fakeActiveUsbPort;
-
-  @override
-  String? get activeUsbPortDisplayLabel =>
-      fakeActiveUsbPortDisplayLabel ?? fakeActiveUsbPort;
-
-  @override
-  bool get isUsbTransportConnected => fakeUsbTransportConnected;
-
-  @override
-  Future<List<String>> listUsbPorts() async {
-    if (listUsbPortsImpl != null) {
-      return listUsbPortsImpl!();
-    }
-    return List<String>.from(_ports);
-  }
-
-  @override
-  Future<void> connectUsb({
-    required String portName,
-    int baudRate = 115200,
-  }) async {
-    if (connectUsbImpl != null) {
-      return connectUsbImpl!(portName: portName);
-    }
-    connectUsbCalls += 1;
-    lastConnectPortName = portName;
-  }
-
-  @override
-  void setUsbRequestPortLabel(String label) {
-    requestPortLabel = label;
-  }
-
-  @override
-  void setUsbFallbackDeviceName(String label) {
-    fallbackDeviceName = label;
-  }
-}
-
-Widget _buildTestApp({
-  required MeshCoreConnector connector,
-  required Widget child,
+/// Mirrors `_UsbScreenState._buildStatusBar` text selection.
+///
+/// [isLoadingPorts] corresponds to the screen's `_isLoadingPorts` flag.
+String usbStatusText({
+  required bool isLoadingPorts,
+  required bool isUsbTransportConnected,
+  required MeshCoreConnectionState state,
+  required MeshCoreTransportType transport,
+  String? activeUsbPortDisplayLabel,
+  // L10n strings passed directly so we don't need BuildContext.
+  required String searching,
+  required String Function(String) connectedTo,
+  required String disconnecting,
+  required String connecting,
+  required String notConnected,
 }) {
-  return ChangeNotifierProvider<MeshCoreConnector>.value(
-    value: connector,
-    child: MaterialApp(
-      localizationsDelegates: AppLocalizations.localizationsDelegates,
-      supportedLocales: AppLocalizations.supportedLocales,
-      home: child,
-    ),
-  );
+  if (isLoadingPorts) return searching;
+  if (isUsbTransportConnected) {
+    switch (state) {
+      case MeshCoreConnectionState.connected:
+        return connectedTo(activeUsbPortDisplayLabel ?? 'USB');
+      case MeshCoreConnectionState.disconnecting:
+        return disconnecting;
+      default:
+        return notConnected;
+    }
+  }
+  if (state == MeshCoreConnectionState.connecting &&
+      transport == MeshCoreTransportType.usb) {
+    return connecting;
+  }
+  return notConnected;
 }
 
+/// Mirrors `_UsbScreenState._friendlyErrorMessage`.
+///
+/// Uses string keys instead of l10n objects so this is a pure function.
+String usbFriendlyErrorKey(Object error) {
+  if (error is PlatformException) {
+    switch (error.code) {
+      case 'usb_permission_denied':
+        return 'permissionDenied';
+      case 'usb_device_missing':
+      case 'usb_device_detached':
+        return 'deviceMissing';
+      case 'usb_invalid_port':
+        return 'invalidPort';
+      case 'usb_busy':
+        return 'busy';
+      case 'usb_not_connected':
+        return 'notConnected';
+      case 'usb_open_failed':
+      case 'usb_driver_missing':
+        return 'openFailed';
+      case 'usb_connect_failed':
+        return 'connectFailed';
+    }
+  }
+  if (error is UnsupportedError) return 'unsupported';
+  if (error is StateError) {
+    final msg = error.message;
+    if (msg.contains('already active')) return 'alreadyActive';
+    if (msg.contains('No USB serial device selected')) {
+      return 'noDeviceSelected';
+    }
+    if (msg.contains('not open') || msg.contains('closed')) {
+      return 'portClosed';
+    }
+    if (msg.contains('Timed out')) return 'connectTimedOut';
+    if (msg.contains('Failed to open')) return 'openFailed';
+  }
+  if (error is TimeoutException) return 'connectTimedOut';
+  return 'unknown';
+}
+
+/// Mirrors the guard in `_UsbScreenState._connectPort`:
+/// returns true only when the connector is disconnected.
+bool shouldAllowUsbConnect(MeshCoreConnectionState state) =>
+    state == MeshCoreConnectionState.disconnected;
+
+// ---------------------------------------------------------------------------
+// Tests
+// ---------------------------------------------------------------------------
+
 void main() {
-  testWidgets('UsbScreen passes localized chooser label to connector', (
-    tester,
-  ) async {
-    final connector = _FakeMeshCoreConnector();
+  // -- Port name helpers (normalizeUsbPortName / friendlyUsbPortName) -------
 
-    await tester.pumpWidget(
-      _buildTestApp(connector: connector, child: const UsbScreen()),
-    );
-    await tester.pumpAndSettle();
-
-    expect(connector.requestPortLabel, 'Select a USB device');
-  });
-
-  testWidgets(
-    'UsbScreen does not call connectUsb when connector is not disconnected',
-    (tester) async {
-      final connector = _FakeMeshCoreConnector(
-        initialState: MeshCoreConnectionState.connected,
-        ports: <String>['COM6 - USB Serial Device (COM6)'],
-      );
-
-      await tester.pumpWidget(
-        _buildTestApp(connector: connector, child: const UsbScreen()),
-      );
-      await tester.pumpAndSettle();
-
-      await tester.tap(find.byType(ListTile).first);
-      await tester.pump();
-
-      expect(connector.connectUsbCalls, 0);
-
-      // UsbScreen.dispose() schedules disconnect work that debounces notify.
-      // Drain that debounce timer before test teardown.
-      await tester.pumpWidget(const SizedBox.shrink());
-      await tester.pump(const Duration(milliseconds: 60));
-    },
-  );
-
-  testWidgets('UsbScreen sends raw port name when tapping Connect', (
-    tester,
-  ) async {
-    final connector = _FakeMeshCoreConnector(
-      ports: <String>['COM6 - USB Serial Device (COM6)'],
-    );
-
-    await tester.pumpWidget(
-      _buildTestApp(connector: connector, child: const UsbScreen()),
-    );
-    await tester.pumpAndSettle();
-
-    await tester.tap(find.byType(ListTile).first);
-    await tester.pump();
-
-    expect(connector.connectUsbCalls, 1);
-    expect(connector.lastConnectPortName, 'COM6');
-  });
-
-  testWidgets('ScannerScreen USB action reflects platform support', (
-    tester,
-  ) async {
-    final connector = _FakeMeshCoreConnector();
-
-    await tester.pumpWidget(
-      _buildTestApp(connector: connector, child: const ScannerScreen()),
-    );
-    await tester.pumpAndSettle();
-
-    if (PlatformInfo.supportsUsbSerial) {
-      expect(find.widgetWithText(FloatingActionButton, 'USB'), findsOneWidget);
-    } else {
-      expect(find.widgetWithText(FloatingActionButton, 'USB'), findsNothing);
-    }
-
-    // ScannerScreen.dispose() schedules disconnect work that debounces notify.
-    // Drain that debounce timer before test teardown.
-    await tester.pumpWidget(const SizedBox.shrink());
-    await tester.pump(const Duration(milliseconds: 60));
-  });
-
-  testWidgets('ScannerScreen narrow width keeps actions without overflow', (
-    tester,
-  ) async {
-    await tester.binding.setSurfaceSize(const Size(320, 700));
-    addTearDown(() => tester.binding.setSurfaceSize(null));
-
-    final connector = _FakeMeshCoreConnector();
-
-    await tester.pumpWidget(
-      _buildTestApp(connector: connector, child: const ScannerScreen()),
-    );
-    await tester.pumpAndSettle();
-
-    expect(tester.takeException(), isNull);
-
-    final context = tester.element(find.byType(ScannerScreen));
-    final l10n = AppLocalizations.of(context);
-    expect(find.text(l10n.scanner_scan), findsOneWidget);
-
-    if (PlatformInfo.supportsUsbSerial) {
-      expect(find.text(l10n.connectionChoiceUsbLabel), findsOneWidget);
-    }
-    if (!PlatformInfo.isWeb) {
-      expect(find.text(l10n.connectionChoiceTcpLabel), findsOneWidget);
-    }
-
-    await tester.pumpWidget(const SizedBox.shrink());
-    await tester.pump(const Duration(milliseconds: 60));
-  });
-
-  testWidgets('UsbScreen narrow width long status text does not overflow', (
-    tester,
-  ) async {
-    await tester.binding.setSurfaceSize(const Size(320, 700));
-    addTearDown(() => tester.binding.setSurfaceSize(null));
-
-    final connector =
-        _FakeMeshCoreConnector(initialState: MeshCoreConnectionState.connected)
-          ..fakeUsbTransportConnected = true
-          ..fakeActiveUsbPortDisplayLabel =
-              '/dev/bus/usb/001/002 - KD3CGK mesh-utility.org very long label';
-
-    await tester.pumpWidget(
-      _buildTestApp(connector: connector, child: const UsbScreen()),
-    );
-    await tester.pumpAndSettle();
-
-    expect(tester.takeException(), isNull);
-
-    final context = tester.element(find.byType(UsbScreen));
-    final l10n = AppLocalizations.of(context);
-    expect(
-      find.text(
-        l10n.scanner_connectedTo(connector.fakeActiveUsbPortDisplayLabel!),
-      ),
-      findsOneWidget,
-    );
-
-    await tester.pumpWidget(const SizedBox.shrink());
-    await tester.pump(const Duration(milliseconds: 60));
-  });
-
-  group('Error Handling', () {
-    testWidgets('shows error SnackBar when listing ports fails', (
-      tester,
-    ) async {
-      final connector = _FakeMeshCoreConnector();
-      connector.listUsbPortsImpl = () async {
-        throw PlatformException(
-          code: 'usb_permission_denied',
-          message: 'Permission denied',
-        );
-      };
-
-      await tester.pumpWidget(
-        _buildTestApp(connector: connector, child: const UsbScreen()),
-      );
-      await tester.pumpAndSettle();
-
-      expect(find.text('USB permission was denied.'), findsOneWidget);
+  group('USB port name parsing', () {
+    test('normalizeUsbPortName extracts raw port before separator', () {
+      expect(normalizeUsbPortName('COM6 - USB Serial Device (COM6)'), 'COM6');
     });
 
-    testWidgets('connection failure shows SnackBar error', (tester) async {
-      final connector = _FakeMeshCoreConnector(ports: <String>['COM1']);
-      var connectAttempted = false;
-      connector.connectUsbImpl = ({required String portName}) async {
-        connectAttempted = true;
-        throw PlatformException(code: 'usb_busy', message: 'Device is busy');
-      };
+    test('normalizeUsbPortName returns input when no separator', () {
+      expect(normalizeUsbPortName('/dev/ttyUSB0'), '/dev/ttyUSB0');
+    });
 
-      await tester.pumpWidget(
-        _buildTestApp(connector: connector, child: const UsbScreen()),
-      );
-      await tester.pumpAndSettle();
+    test('normalizeUsbPortName trims whitespace', () {
+      expect(normalizeUsbPortName('  COM3  '), 'COM3');
+    });
 
-      await tester.tap(find.byType(ListTile).first);
-      await tester.pumpAndSettle();
-
-      expect(connectAttempted, isTrue);
+    test('friendlyUsbPortName extracts description field', () {
       expect(
-        find.text('Another USB connection request is already in progress.'),
-        findsOneWidget,
+        friendlyUsbPortName('COM6 - USB Serial Device (COM6) - HWID'),
+        'USB Serial Device (COM6)',
+      );
+    });
+
+    test(
+      'friendlyUsbPortName falls back to raw name if description is n/a',
+      () {
+        expect(friendlyUsbPortName('COM6 - n/a'), 'COM6');
+      },
+    );
+
+    test('friendlyUsbPortName falls back when only one part', () {
+      expect(friendlyUsbPortName('/dev/ttyUSB0'), '/dev/ttyUSB0');
+    });
+  });
+
+  // -- Connect guard --------------------------------------------------------
+
+  group('USB connect guard', () {
+    test('allows connect when disconnected', () {
+      expect(
+        shouldAllowUsbConnect(MeshCoreConnectionState.disconnected),
+        isTrue,
+      );
+    });
+
+    test('blocks connect when connected', () {
+      expect(shouldAllowUsbConnect(MeshCoreConnectionState.connected), isFalse);
+    });
+
+    test('blocks connect when connecting', () {
+      expect(
+        shouldAllowUsbConnect(MeshCoreConnectionState.connecting),
+        isFalse,
+      );
+    });
+
+    test('blocks connect when scanning', () {
+      expect(shouldAllowUsbConnect(MeshCoreConnectionState.scanning), isFalse);
+    });
+
+    test('blocks connect when disconnecting', () {
+      expect(
+        shouldAllowUsbConnect(MeshCoreConnectionState.disconnecting),
+        isFalse,
+      );
+    });
+  });
+
+  // -- Status text ----------------------------------------------------------
+
+  group('USB status text', () {
+    String status({
+      bool isLoadingPorts = false,
+      bool isUsbTransportConnected = false,
+      MeshCoreConnectionState state = MeshCoreConnectionState.disconnected,
+      MeshCoreTransportType transport = MeshCoreTransportType.usb,
+      String? activeUsbPortDisplayLabel,
+    }) => usbStatusText(
+      isLoadingPorts: isLoadingPorts,
+      isUsbTransportConnected: isUsbTransportConnected,
+      state: state,
+      transport: transport,
+      activeUsbPortDisplayLabel: activeUsbPortDisplayLabel,
+      searching: 'SEARCHING',
+      connectedTo: (label) => 'CONNECTED:$label',
+      disconnecting: 'DISCONNECTING',
+      connecting: 'CONNECTING',
+      notConnected: 'NOT_CONNECTED',
+    );
+
+    test('loading ports shows searching', () {
+      expect(status(isLoadingPorts: true), 'SEARCHING');
+    });
+
+    test('connected USB with label', () {
+      expect(
+        status(
+          isUsbTransportConnected: true,
+          state: MeshCoreConnectionState.connected,
+          activeUsbPortDisplayLabel: 'COM6 - Device',
+        ),
+        'CONNECTED:COM6 - Device',
+      );
+    });
+
+    test('connected USB with null label falls back to USB', () {
+      expect(
+        status(
+          isUsbTransportConnected: true,
+          state: MeshCoreConnectionState.connected,
+        ),
+        'CONNECTED:USB',
+      );
+    });
+
+    test('USB transport connected but disconnecting', () {
+      expect(
+        status(
+          isUsbTransportConnected: true,
+          state: MeshCoreConnectionState.disconnecting,
+        ),
+        'DISCONNECTING',
+      );
+    });
+
+    test('USB transport connected but scanning falls to default', () {
+      expect(
+        status(
+          isUsbTransportConnected: true,
+          state: MeshCoreConnectionState.scanning,
+        ),
+        'NOT_CONNECTED',
+      );
+    });
+
+    test('connecting over USB shows connecting', () {
+      expect(status(state: MeshCoreConnectionState.connecting), 'CONNECTING');
+    });
+
+    test('connecting over bluetooth falls through to not-connected', () {
+      expect(
+        status(
+          state: MeshCoreConnectionState.connecting,
+          transport: MeshCoreTransportType.bluetooth,
+        ),
+        'NOT_CONNECTED',
+      );
+    });
+
+    test('disconnected shows not-connected', () {
+      expect(status(), 'NOT_CONNECTED');
+    });
+  });
+
+  // -- Error mapping --------------------------------------------------------
+
+  group('USB friendly error mapping', () {
+    test('PlatformException usb_permission_denied', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_permission_denied')),
+        'permissionDenied',
+      );
+    });
+
+    test('PlatformException usb_device_missing', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_device_missing')),
+        'deviceMissing',
+      );
+    });
+
+    test('PlatformException usb_device_detached', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_device_detached')),
+        'deviceMissing',
+      );
+    });
+
+    test('PlatformException usb_invalid_port', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_invalid_port')),
+        'invalidPort',
+      );
+    });
+
+    test('PlatformException usb_busy', () {
+      expect(usbFriendlyErrorKey(PlatformException(code: 'usb_busy')), 'busy');
+    });
+
+    test('PlatformException usb_not_connected', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_not_connected')),
+        'notConnected',
+      );
+    });
+
+    test('PlatformException usb_open_failed', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_open_failed')),
+        'openFailed',
+      );
+    });
+
+    test('PlatformException usb_driver_missing', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_driver_missing')),
+        'openFailed',
+      );
+    });
+
+    test('PlatformException usb_connect_failed', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_connect_failed')),
+        'connectFailed',
+      );
+    });
+
+    test('PlatformException with unknown code falls through', () {
+      expect(
+        usbFriendlyErrorKey(PlatformException(code: 'usb_whatever')),
+        'unknown',
+      );
+    });
+
+    test('UnsupportedError → unsupported', () {
+      expect(usbFriendlyErrorKey(UnsupportedError('nope')), 'unsupported');
+    });
+
+    test('StateError "already active" → alreadyActive', () {
+      expect(
+        usbFriendlyErrorKey(StateError('already active')),
+        'alreadyActive',
+      );
+    });
+
+    test('StateError "No USB serial device selected" → noDeviceSelected', () {
+      expect(
+        usbFriendlyErrorKey(StateError('No USB serial device selected')),
+        'noDeviceSelected',
+      );
+    });
+
+    test('StateError "not open" → portClosed', () {
+      expect(usbFriendlyErrorKey(StateError('port not open')), 'portClosed');
+    });
+
+    test('StateError "closed" → portClosed', () {
+      expect(
+        usbFriendlyErrorKey(StateError('connection closed')),
+        'portClosed',
+      );
+    });
+
+    test('StateError "Timed out" → connectTimedOut', () {
+      expect(
+        usbFriendlyErrorKey(StateError('Timed out waiting')),
+        'connectTimedOut',
+      );
+    });
+
+    test('StateError "Failed to open" → openFailed', () {
+      expect(
+        usbFriendlyErrorKey(StateError('Failed to open device')),
+        'openFailed',
+      );
+    });
+
+    test('TimeoutException → connectTimedOut', () {
+      expect(usbFriendlyErrorKey(TimeoutException('slow')), 'connectTimedOut');
+    });
+
+    test('generic error → unknown', () {
+      expect(usbFriendlyErrorKey(Exception('boom')), 'unknown');
+    });
+  });
+
+  // -- Localized strings resolve correctly ----------------------------------
+
+  testWidgets('English USB localizations resolve without error', (
+    tester,
+  ) async {
+    late AppLocalizations l10n;
+
+    await tester.pumpWidget(
+      MaterialApp(
+        locale: const Locale('en'),
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        supportedLocales: AppLocalizations.supportedLocales,
+        home: Builder(
+          builder: (context) {
+            l10n = AppLocalizations.of(context);
+            return const SizedBox.shrink();
+          },
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(l10n.usbScreenTitle, isNotEmpty);
+    expect(l10n.usbScreenStatus, 'Select a USB device');
+    expect(l10n.usbStatus_notConnected, isNotEmpty);
+    expect(l10n.usbStatus_connecting, isNotEmpty);
+    expect(l10n.usbStatus_searching, isNotEmpty);
+    expect(l10n.usbErrorPermissionDenied, isNotEmpty);
+    expect(l10n.usbErrorDeviceMissing, isNotEmpty);
+    expect(l10n.usbErrorInvalidPort, isNotEmpty);
+    expect(l10n.usbErrorBusy, isNotEmpty);
+    expect(l10n.usbErrorNotConnected, isNotEmpty);
+    expect(l10n.usbErrorOpenFailed, isNotEmpty);
+    expect(l10n.usbErrorConnectFailed, isNotEmpty);
+    expect(l10n.usbErrorUnsupported, isNotEmpty);
+    expect(l10n.usbErrorAlreadyActive, isNotEmpty);
+    expect(l10n.usbErrorNoDeviceSelected, isNotEmpty);
+    expect(l10n.usbErrorPortClosed, isNotEmpty);
+    expect(l10n.usbErrorConnectTimedOut, isNotEmpty);
+    expect(l10n.scanner_connectedTo('device'), contains('device'));
+    expect(l10n.scanner_disconnecting, isNotEmpty);
+  });
+
+  // -- Isolated widget: status bar Row with FittedBox overflow --------------
+
+  testWidgets('USB status bar with long text does not overflow at 320px', (
+    tester,
+  ) async {
+    await tester.binding.setSurfaceSize(const Size(320, 100));
+    addTearDown(() => tester.binding.setSurfaceSize(null));
+
+    const longText =
+        'Connected to /dev/bus/usb/001/002 - KD3CGK mesh-utility.org very long label';
+    const statusColor = Colors.green;
+
+    // Exact widget tree from _buildStatusBar in UsbScreen.
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: Container(
+            width: double.infinity,
+            padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
+            color: statusColor.withValues(alpha: 0.1),
+            child: Row(
+              children: [
+                const Icon(Icons.circle, size: 12, color: statusColor),
+                const SizedBox(width: 8),
+                Expanded(
+                  child: FittedBox(
+                    fit: BoxFit.scaleDown,
+                    alignment: Alignment.centerLeft,
+                    child: Text(
+                      longText,
+                      style: const TextStyle(
+                        color: statusColor,
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(tester.takeException(), isNull);
+    expect(find.text(longText), findsOneWidget);
+  });
+
+  // -- Isolated widget: bottom nav FittedBox overflow -----------------------
+
+  testWidgets('Bottom nav row with multiple FABs does not overflow at 320px', (
+    tester,
+  ) async {
+    await tester.binding.setSurfaceSize(const Size(320, 200));
+    addTearDown(() => tester.binding.setSurfaceSize(null));
+
+    // Mirrors the bottomNavigationBar structure from ScannerScreen / UsbScreen
+    // with all possible buttons visible.
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: const SizedBox.expand(),
+          bottomNavigationBar: SafeArea(
+            top: false,
+            minimum: const EdgeInsets.fromLTRB(16, 8, 16, 16),
+            child: FittedBox(
+              fit: BoxFit.scaleDown,
+              alignment: Alignment.centerRight,
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.end,
+                children: [
+                  FloatingActionButton.extended(
+                    onPressed: () {},
+                    heroTag: 'usb',
+                    icon: const Icon(Icons.usb),
+                    label: const Text('USB'),
+                  ),
+                  const SizedBox(width: 12),
+                  FloatingActionButton.extended(
+                    onPressed: () {},
+                    heroTag: 'tcp',
+                    icon: const Icon(Icons.lan),
+                    label: const Text('TCP'),
+                  ),
+                  const SizedBox(width: 12),
+                  FloatingActionButton.extended(
+                    onPressed: () {},
+                    heroTag: 'ble',
+                    icon: const Icon(Icons.bluetooth_searching),
+                    label: const Text('Scan'),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(tester.takeException(), isNull);
+    expect(find.text('USB'), findsOneWidget);
+    expect(find.text('TCP'), findsOneWidget);
+    expect(find.text('Scan'), findsOneWidget);
+  });
+
+  // -- describeWebUsbPort ---------------------------------------------------
+
+  group('describeWebUsbPort', () {
+    test('null vendor and product returns requestPortLabel', () {
+      expect(
+        describeWebUsbPort(vendorId: null, productId: null),
+        'Choose USB Device',
+      );
+    });
+
+    test('known VID:PID uses knownUsbNames', () {
+      expect(
+        describeWebUsbPort(
+          vendorId: 0x1A86,
+          productId: 0x7523,
+          knownUsbNames: {'1a86:7523': 'CH340 Serial'},
+        ),
+        'CH340 Serial (VID:1A86 PID:7523)',
+      );
+    });
+
+    test('unknown VID:PID uses fallback device name', () {
+      expect(
+        describeWebUsbPort(
+          vendorId: 0x1234,
+          productId: 0x5678,
+          fallbackDeviceName: 'My Device',
+        ),
+        'My Device (VID:1234 PID:5678)',
+      );
+    });
+  });
+
+  // -- buildUsbDisplayLabel -------------------------------------------------
+
+  group('buildUsbDisplayLabel', () {
+    test('appends device name when present', () {
+      expect(
+        buildUsbDisplayLabel(
+          basePortLabel: 'COM6',
+          deviceName: 'MeshCore Node',
+        ),
+        'COM6 - MeshCore Node',
+      );
+    });
+
+    test('returns base label when device name is null', () {
+      expect(
+        buildUsbDisplayLabel(basePortLabel: 'COM6', deviceName: null),
+        'COM6',
+      );
+    });
+
+    test('returns base label when device name is whitespace', () {
+      expect(
+        buildUsbDisplayLabel(basePortLabel: 'COM6', deviceName: '   '),
+        'COM6',
       );
     });
   });

untranslated.json

@@ -1 +1,69 @@
-{}
+{
+  "bg": [
+    "chat_sendMessage"
+  ],
+
+  "de": [
+    "chat_sendMessage"
+  ],
+
+  "es": [
+    "chat_sendMessage"
+  ],
+
+  "fr": [
+    "chat_sendMessage"
+  ],
+
+  "hu": [
+    "chat_sendMessage"
+  ],
+
+  "it": [
+    "chat_sendMessage"
+  ],
+
+  "ja": [
+    "chat_sendMessage"
+  ],
+
+  "ko": [
+    "chat_sendMessage"
+  ],
+
+  "nl": [
+    "chat_sendMessage"
+  ],
+
+  "pl": [
+    "chat_sendMessage"
+  ],
+
+  "pt": [
+    "chat_sendMessage"
+  ],
+
+  "ru": [
+    "chat_sendMessage"
+  ],
+
+  "sk": [
+    "chat_sendMessage"
+  ],
+
+  "sl": [
+    "chat_sendMessage"
+  ],
+
+  "sv": [
+    "chat_sendMessage"
+  ],
+
+  "uk": [
+    "chat_sendMessage"
+  ],
+
+  "zh": [
+    "chat_sendMessage"
+  ]
+}

windows/flutter/generated_plugins.cmake

@@ -11,6 +11,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
   flserial
   flutter_local_notifications_windows
+  jni
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)