First working interface

.gitignore

@@ -26,6 +26,17 @@ android/local.properties
 linux/build/
 web/build/
 
+# Flutter misc
+.last_build_id
+
+# FVM (Flutter Version Management)
+.fvm/
+.fvmrc
+
+# Test coverage
+coverage/
+test/.test_coverage.dart
+
 # OS
 .DS_Store
 Thumbs.db

devtools_options.yaml

@@ -0,0 +1,3 @@
+description: This file stores settings for Dart & Flutter DevTools.
+documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
+extensions:

lib/app.dart

@@ -23,18 +23,27 @@ class TelemetryApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Telemetry Monitor',
-      theme: ThemeData(
-        useMaterial3: true,
-        colorSchemeSeed: Colors.blueGrey,
-      ),
-      home: AppScope(
-        session: session,
-        layout: layout,
-        settings: settings,
-        exporter: exporter,
-        child: const TabScaffold(),
+    return ListenableBuilder(
+      listenable: settings,
+      builder: (_, __) => MaterialApp(
+        title: 'Telemetry Monitor',
+        theme: ThemeData(
+          useMaterial3: true,
+          colorSchemeSeed: Colors.blueGrey,
+        ),
+        darkTheme: ThemeData(
+          useMaterial3: true,
+          colorSchemeSeed: Colors.blueGrey,
+          brightness: Brightness.dark,
+        ),
+        themeMode: settings.darkMode ? ThemeMode.dark : ThemeMode.light,
+        home: AppScope(
+          session: session,
+          layout: layout,
+          settings: settings,
+          exporter: exporter,
+          child: const TabScaffold(),
+        ),
       ),
     );
   }

lib/config/app_config.dart

@@ -63,6 +63,9 @@ class AppConfig {
   /// Default mini-log severity filter (Dashboard tab). ERROR + FATAL.
   static const Set<int> defaultMiniLogSeverities = {4, 5};
 
+  /// Default theme mode on first launch.
+  static const bool defaultDarkMode = false;
+
   /// Default chart x-window on launch and after Reset View.
   static const Duration defaultWindowWidth = Duration(seconds: 10);
 

lib/config/settings.dart

@@ -19,6 +19,7 @@ class Settings extends ChangeNotifier {
     required this.reconnectBackoffFactor,
     required this.miniLogSeverities,
     required this.statusLookback,
+    required this.darkMode,
   });
 
   String wsUrl;
@@ -30,6 +31,7 @@ class Settings extends ChangeNotifier {
   double reconnectBackoffFactor;
   Set<int> miniLogSeverities;
   int statusLookback;
+  bool darkMode;
 
   /// Load from shared_preferences with defaults for any missing keys.
   static Future<Settings> load({bool isWeb = false}) async {
@@ -62,6 +64,8 @@ class Settings extends ChangeNotifier {
           .toSet(),
       statusLookback: p.getInt('settings.statusLookback') ??
           AppConfig.defaultStatusLookback,
+      darkMode:
+          p.getBool('settings.darkMode') ?? AppConfig.defaultDarkMode,
     );
   }
 
@@ -81,6 +85,7 @@ class Settings extends ChangeNotifier {
     await p.setStringList('settings.miniLogSeverities',
         miniLogSeverities.map((s) => s.toString()).toList());
     await p.setInt('settings.statusLookback', statusLookback);
+    await p.setBool('settings.darkMode', darkMode);
     notifyListeners();
   }
 
@@ -98,6 +103,7 @@ class Settings extends ChangeNotifier {
     reconnectBackoffFactor = AppConfig.defaultReconnectBackoffFactor;
     miniLogSeverities = Set.of(AppConfig.defaultMiniLogSeverities);
     statusLookback = AppConfig.defaultStatusLookback;
+    darkMode = AppConfig.defaultDarkMode;
     notifyListeners();
   }
 
@@ -112,6 +118,7 @@ class Settings extends ChangeNotifier {
     reconnectBackoffFactor = other.reconnectBackoffFactor;
     miniLogSeverities = Set.of(other.miniLogSeverities);
     statusLookback = other.statusLookback;
+    darkMode = other.darkMode;
     notifyListeners();
   }
 
@@ -125,5 +132,6 @@ class Settings extends ChangeNotifier {
         reconnectBackoffFactor: reconnectBackoffFactor,
         miniLogSeverities: Set.of(miniLogSeverities),
         statusLookback: statusLookback,
+        darkMode: darkMode,
       );
 }

lib/decoder/decoder_base.dart

@@ -11,6 +11,9 @@ abstract class Decoder {
   /// Stream of decoded envelopes (or batches thereof, flattened to per-envelope).
   Stream<Envelope> get envelopes;
 
+  /// Spin up any background machinery. No-op on the inline (Web) decoder.
+  Future<void> start();
+
   /// Push a raw frame for decoding. Returns immediately.
   void feed(Uint8List frame);
 

lib/decoder/decoder_inline.dart

@@ -15,6 +15,9 @@ class DecoderInline implements Decoder {
   @override
   Stream<Envelope> get envelopes => _out.stream;
 
+  @override
+  Future<void> start() async {}
+
   @override
   void feed(Uint8List frame) {
     try {

lib/decoder/decoder_isolate.dart

@@ -25,6 +25,7 @@ class DecoderIsolate implements Decoder {
   @override
   Stream<Envelope> get envelopes => _out.stream;
 
+  @override
   Future<void> start() async {
     if (_isolate != null) return;
     _fromIsolate = ReceivePort();

lib/export/csv_exporter_base.dart

@@ -14,15 +14,15 @@ class ExportResult {
   final int bytesWritten;
 }
 
-/// Builds CSV row strings. Shared by both platform implementations so the
-/// row layout is defined exactly once.
-class CsvRowBuilder {
-  CsvRowBuilder(this.layout);
+/// Builds rows for the data CSV. Needs a layout to know which channels are
+/// enabled and what their column names should be.
+class CsvDataRowBuilder {
+  CsvDataRowBuilder(this.layout);
   final LayoutController layout;
 
-  /// Header row for data CSV. Disabled channels are omitted; pause and the
-  /// 8 status fields always appear.
-  String dataHeader() {
+  /// Header row. Disabled channels are omitted; pause and the 8 status
+  /// fields always appear.
+  String header() {
     final cols = <String>['timestamp_us'];
     for (var ch = 1; ch <= 16; ch++) {
       if (layout.configFor(ch).enabled) {
@@ -37,7 +37,7 @@ class CsvRowBuilder {
   }
 
   /// Row for one packet. Missing values are blank cells.
-  String dataRow(packet) {
+  String row(packet) {
     final cells = <String>[];
     cells.add(packet.hasTimestampUs() ? packet.timestampUs.toString() : '');
     for (var ch = 1; ch <= 16; ch++) {
@@ -51,16 +51,6 @@ class CsvRowBuilder {
     return cells.join(',');
   }
 
-  String logHeader() => 'timestamp_us,severity,error_number,description';
-
-  String logRow(entry) {
-    final ts = entry.hasTimestampUs() ? entry.timestampUs.toString() : '';
-    final sev = entry.hasSeverity() ? entry.severity.name : '';
-    final err = entry.hasErrorNumber() ? entry.errorNumber.toString() : '';
-    final desc = entry.hasDescription() ? _escape(entry.description) : '';
-    return '$ts,$sev,$err,$desc';
-  }
-
   static String _channelCell(packet, int ch) {
     switch (ch) {
       case 1:  return packet.hasCh1()  ? packet.ch1.toString()  : '';
@@ -99,6 +89,22 @@ class CsvRowBuilder {
 
   /// Strip characters that would break CSV column names.
   static String _safe(String s) => s.replaceAll(RegExp(r'[,\s]+'), '_');
+}
+
+/// Builds rows for the log CSV. Takes no layout — log output is
+/// fully determined by the `LogPacket` itself.
+class CsvLogRowBuilder {
+  const CsvLogRowBuilder();
+
+  String header() => 'timestamp_us,severity,error_number,description';
+
+  String row(entry) {
+    final ts = entry.hasTimestampUs() ? entry.timestampUs.toString() : '';
+    final sev = entry.hasSeverity() ? entry.severity.name : '';
+    final err = entry.hasErrorNumber() ? entry.errorNumber.toString() : '';
+    final desc = entry.hasDescription() ? _escape(entry.description) : '';
+    return '$ts,$sev,$err,$desc';
+  }
 
   /// Escape a free-form field for CSV. Wraps in quotes if needed.
   static String _escape(String s) {

lib/export/csv_exporter_io.dart

@@ -20,16 +20,16 @@ class CsvExporterImpl implements CsvExporter {
     required LayoutController layout,
     ProgressCallback? onProgress,
   }) async {
-    final builder = CsvRowBuilder(layout);
+    final builder = CsvDataRowBuilder(layout);
     final dir = await getApplicationDocumentsDirectory();
     final ts = DateTime.now().toIso8601String().replaceAll(':', '-');
     final file = File('${dir.path}/telemetry_data_$ts.csv');
     final sink = file.openWrite();
-    sink.writeln(builder.dataHeader());
+    sink.writeln(builder.header());
     final total = buffer.length;
     var written = 0;
     for (var i = 0; i < total; i++) {
-      sink.writeln(builder.dataRow(buffer[i]));
+      sink.writeln(builder.row(buffer[i]));
       written++;
       if (written % _chunkRows == 0) {
         onProgress?.call(written / total);
@@ -51,17 +51,16 @@ class CsvExporterImpl implements CsvExporter {
     required LogBuffer buffer,
     ProgressCallback? onProgress,
   }) async {
-    // Logs don't need a layout to format (no column projection).
     final dir = await getApplicationDocumentsDirectory();
     final ts = DateTime.now().toIso8601String().replaceAll(':', '-');
     final file = File('${dir.path}/telemetry_log_$ts.csv');
     final sink = file.openWrite();
-    final builder = CsvRowBuilder(_NoLayoutPlaceholder());
-    sink.writeln(builder.logHeader());
+    const builder = CsvLogRowBuilder();
+    sink.writeln(builder.header());
     final total = buffer.length;
     var written = 0;
     for (final entry in buffer.iterate()) {
-      sink.writeln(builder.logRow(entry));
+      sink.writeln(builder.row(entry));
       written++;
       if (written % _chunkRows == 0) {
         onProgress?.call(written / total);
@@ -77,10 +76,3 @@ class CsvExporterImpl implements CsvExporter {
     );
   }
 }
-
-/// CsvRowBuilder.logRow doesn't actually need a layout. We pass a placeholder
-/// so we don't have to plumb a real one through for log-only exports.
-class _NoLayoutPlaceholder implements LayoutController {
-  @override
-  dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}

lib/export/csv_exporter_web.dart

@@ -22,14 +22,14 @@ class CsvExporterImpl implements CsvExporter {
     required LayoutController layout,
     ProgressCallback? onProgress,
   }) async {
-    final builder = CsvRowBuilder(layout);
+    final builder = CsvDataRowBuilder(layout);
     final chunks = <String>[];
-    chunks.add('${builder.dataHeader()}\n');
+    chunks.add('${builder.header()}\n');
     final total = buffer.length;
     final sb = StringBuffer();
     var written = 0;
     for (var i = 0; i < total; i++) {
-      sb.writeln(builder.dataRow(buffer[i]));
+      sb.writeln(builder.row(buffer[i]));
       written++;
       if (written % _chunkRows == 0) {
         chunks.add(sb.toString());
@@ -53,14 +53,14 @@ class CsvExporterImpl implements CsvExporter {
     required LogBuffer buffer,
     ProgressCallback? onProgress,
   }) async {
-    final builder = CsvRowBuilder(_NoLayoutPlaceholder());
+    const builder = CsvLogRowBuilder();
     final chunks = <String>[];
-    chunks.add('${builder.logHeader()}\n');
+    chunks.add('${builder.header()}\n');
     final total = buffer.length;
     final sb = StringBuffer();
     var written = 0;
     for (final entry in buffer.iterate()) {
-      sb.writeln(builder.logRow(entry));
+      sb.writeln(builder.row(entry));
       written++;
       if (written % _chunkRows == 0) {
         chunks.add(sb.toString());
@@ -104,8 +104,3 @@ class CsvExporterImpl implements CsvExporter {
     html.Url.revokeObjectUrl(url);
   }
 }
-
-class _NoLayoutPlaceholder implements LayoutController {
-  @override
-  dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}

lib/main.dart

@@ -21,11 +21,7 @@ Future<void> main() async {
     backoffFactor: settings.reconnectBackoffFactor,
   );
   final decoder = DecoderImpl(batchInterval: settings.decoderBatchInterval);
-
-  // Native isolate decoders need an explicit start.
-  if (decoder is DecoderIsolate) {
-    await decoder.start();
-  }
+  await decoder.start();
 
   final session = SessionController(
     transport: transport,

lib/transport/websocket_transport_base.dart

@@ -48,7 +48,7 @@ abstract class WebSocketTransportBase {
     _shouldReconnect = false;
     _reconnectTimer?.cancel();
     _reconnectTimer = null;
-    await _closePlatform();
+    await closePlatform();
     _state.value = WsConnectionState.disconnected;
   }
 
@@ -78,7 +78,7 @@ abstract class WebSocketTransportBase {
 
   /// Subclass: close the platform-specific channel if open.
   @protected
-  Future<void> _closePlatform();
+  Future<void> closePlatform();
 
   Future<void> _openOnce() async {
     if (_url == null) return;

lib/transport/websocket_transport_io.dart

@@ -42,7 +42,7 @@ class WebSocketTransport extends WebSocketTransportBase {
   }
 
   @override
-  Future<void> _closePlatform() async {
+  Future<void> closePlatform() async {
     await _sub?.cancel();
     _sub = null;
     await _channel?.sink.close(WebSocketStatus.normalClosure);

lib/transport/websocket_transport_web.dart

@@ -38,7 +38,7 @@ class WebSocketTransport extends WebSocketTransportBase {
   }
 
   @override
-  Future<void> _closePlatform() async {
+  Future<void> closePlatform() async {
     await _sub?.cancel();
     _sub = null;
     await _channel?.sink.close(1000); // Normal closure.

lib/ui/app_scope.dart

@@ -30,6 +30,17 @@ class AppScope extends InheritedWidget {
     return scope!;
   }
 
+  /// Republish this scope above [child]. Used when opening dialogs, because
+  /// `showDialog` mounts the dialog in the root Navigator's overlay, which
+  /// sits above the AppScope in the widget tree.
+  Widget wrap(Widget child) => AppScope(
+        session: session,
+        layout: layout,
+        settings: settings,
+        exporter: exporter,
+        child: child,
+      );
+
   @override
   bool updateShouldNotify(AppScope old) =>
       session != old.session ||

lib/ui/chart_grid.dart

@@ -14,7 +14,6 @@ class ChartGrid extends StatelessWidget {
       builder: (_, __) {
         final grid = scope.layout.grid;
         return GridView.builder(
-          physics: const NeverScrollableScrollPhysics(),
           gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
             crossAxisCount: grid.cols,
             mainAxisSpacing: 8,

lib/ui/chart_painter.dart

@@ -2,7 +2,6 @@ import 'package:flutter/material.dart';
 
 import '../layout/chart_config.dart';
 import '../layout/layout_controller.dart';
-import '../session/decimator.dart';
 import '../session/session_controller.dart';
 
 /// Stateless per-frame painter. Reads everything fresh from the controllers

lib/ui/chart_widget.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 
 import '../layout/chart_config.dart';
-import '../session/view_state.dart';
 import 'app_scope.dart';
 import 'chart_painter.dart';
 

lib/ui/dashboard_tab.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 
-import 'app_scope.dart';
 import 'chart_grid.dart';
 import 'mini_log_panel.dart';
 
@@ -9,18 +8,13 @@ class DashboardTab extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Padding(
-      padding: const EdgeInsets.all(8),
+    return const Padding(
+      padding: EdgeInsets.all(8),
       child: Column(
         children: [
-          const Expanded(flex: 4, child: ChartGrid()),
-          const SizedBox(height: 8),
-          Expanded(
-            flex: 1,
-            child: MiniLogPanel(
-              severities: AppScope.of(context).settings.miniLogSeverities,
-            ),
-          ),
+          Expanded(flex: 4, child: ChartGrid()),
+          SizedBox(height: 8),
+          Expanded(flex: 1, child: MiniLogPanel()),
         ],
       ),
     );

lib/ui/dialogs/settings_dialog.dart

@@ -140,6 +140,14 @@ class _SettingsDialogState extends State<SettingsDialog> {
                   hint: '≈ 1 s @ 1 kHz'),
               _section('Dashboard mini log'),
               ..._severityCheckboxes(),
+              _section('Appearance'),
+              SwitchListTile(
+                dense: true,
+                contentPadding: EdgeInsets.zero,
+                title: const Text('Dark theme'),
+                value: _draft.darkMode,
+                onChanged: (v) => setState(() => _draft.darkMode = v),
+              ),
             ],
           ),
         ),
@@ -198,6 +206,7 @@ class _SettingsDialogState extends State<SettingsDialog> {
         double.tryParse(_backoffCtrl.text) ?? _draft.reconnectBackoffFactor;
     _draft.statusLookback =
         int.tryParse(_lookbackCtrl.text) ?? _draft.statusLookback;
+    // darkMode is edited directly on _draft via the switch.
 
     final scope = AppScope.of(context);
     final urlChanged = scope.settings.wsUrl != _draft.wsUrl;

lib/ui/full_log_tab.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 
-import '../proto/messages.pb.dart';
 import 'app_scope.dart';
 import 'log_list_view.dart';
 

lib/ui/mini_log_panel.dart

@@ -1,15 +1,13 @@
 import 'package:flutter/material.dart';
 
-import '../proto/messages.pb.dart';
 import 'app_scope.dart';
 import 'log_list_view.dart';
 
 /// Compact log panel on the Dashboard tab. Filters by severity using the
-/// set configured in Settings (default ERROR + FATAL).
+/// set configured in Settings (default ERROR + FATAL). Rebuilds when the
+/// severity set changes.
 class MiniLogPanel extends StatelessWidget {
-  const MiniLogPanel({super.key, required this.severities});
-
-  final Set<int> severities;
+  const MiniLogPanel({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -24,10 +22,10 @@ class MiniLogPanel extends StatelessWidget {
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
-          Padding(
-            padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
+          const Padding(
+            padding: EdgeInsets.symmetric(horizontal: 12, vertical: 6),
             child: Row(
-              children: const [
+              children: [
                 Text('Errors & fatals',
                     style: TextStyle(
                         fontWeight: FontWeight.w500, fontSize: 12)),
@@ -39,15 +37,21 @@ class MiniLogPanel extends StatelessWidget {
           ),
           const Divider(height: 1),
           Expanded(
-            child: LogListView(
-              session: scope.session,
-              filter: (e) => severities.contains(
-                e.hasSeverity() ? e.severity.value : 0,
-              ),
+            child: ListenableBuilder(
+              listenable: scope.settings,
+              builder: (_, __) {
+                final severities = scope.settings.miniLogSeverities;
+                return LogListView(
+                  session: scope.session,
+                  filter: (e) => severities.contains(
+                    e.hasSeverity() ? e.severity.value : 0,
+                  ),
+                );
+              },
             ),
           ),
         ],
       ),
     );
   }
-}
+}

lib/ui/toolbar.dart

@@ -57,7 +57,7 @@ class Toolbar extends StatelessWidget {
             OutlinedButton.icon(
               onPressed: () => showDialog<void>(
                 context: context,
-                builder: (_) => const LayoutDialog(),
+                builder: (_) => scope.wrap(const LayoutDialog()),
               ),
               icon: const Icon(Icons.grid_view),
               label: const Text('Layout'),
@@ -66,7 +66,7 @@ class Toolbar extends StatelessWidget {
             OutlinedButton.icon(
               onPressed: () => showDialog<void>(
                 context: context,
-                builder: (_) => const SettingsDialog(),
+                builder: (_) => scope.wrap(const SettingsDialog()),
               ),
               icon: const Icon(Icons.settings),
               label: const Text('Settings'),

linux/.gitignore

@@ -0,0 +1 @@
+flutter/ephemeral

linux/CMakeLists.txt

@@ -0,0 +1,128 @@
+# Project-level configuration.
+cmake_minimum_required(VERSION 3.13)
+project(runner LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "telemetry_monitor")
+# The unique GTK application identifier for this application. See:
+# https://wiki.gnome.org/HowDoI/ChooseApplicationID
+set(APPLICATION_ID "com.example.telemetry_monitor")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(SET CMP0063 NEW)
+
+# Load bundled libraries from the lib/ directory relative to the binary.
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Define build configuration options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+# Application build; see runner/CMakeLists.txt.
+add_subdirectory("runner")
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)
+
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
+  install(FILES "${bundled_library}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endforeach(bundled_library)
+
+# Copy the native assets provided by the build.dart from all packages.
+set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
+install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+   COMPONENT Runtime)
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()

linux/flutter/CMakeLists.txt

@@ -0,0 +1,88 @@
+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)

linux/flutter/generated_plugin_registrant.cc

@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}

linux/flutter/generated_plugin_registrant.h

@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_

linux/flutter/generated_plugins.cmake

@@ -0,0 +1,24 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  jni
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)

linux/runner/CMakeLists.txt

@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.13)
+project(runner LANGUAGES CXX)
+
+# Define the application target. To change its name, change BINARY_NAME in the
+# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
+# work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add preprocessor definitions for the application ID.
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Add dependency libraries. Add any application-specific dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")

linux/runner/main.cc

@@ -0,0 +1,6 @@
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}

linux/runner/my_application.cc

@@ -0,0 +1,148 @@
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Called when first Flutter frame received.
+static void first_frame_cb(MyApplication* self, FlView* view) {
+  gtk_widget_show(gtk_widget_get_toplevel(GTK_WIDGET(view)));
+}
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "telemetry_monitor");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "telemetry_monitor");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(
+      project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  GdkRGBA background_color;
+  // Background defaults to black, override it here if necessary, e.g. #00000000
+  // for transparent.
+  gdk_rgba_parse(&background_color, "#000000");
+  fl_view_set_background_color(view, &background_color);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  // Show the window when Flutter renders.
+  // Requires the view to be realized so we can start rendering.
+  g_signal_connect_swapped(view, "first-frame", G_CALLBACK(first_frame_cb),
+                           self);
+  gtk_widget_realize(GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application,
+                                                  gchar*** arguments,
+                                                  int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+    g_warning("Failed to register: %s", error->message);
+    *exit_status = 1;
+    return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GApplication::startup.
+static void my_application_startup(GApplication* application) {
+  // MyApplication* self = MY_APPLICATION(object);
+
+  // Perform any actions required at application startup.
+
+  G_APPLICATION_CLASS(my_application_parent_class)->startup(application);
+}
+
+// Implements GApplication::shutdown.
+static void my_application_shutdown(GApplication* application) {
+  // MyApplication* self = MY_APPLICATION(object);
+
+  // Perform any actions required at application shutdown.
+
+  G_APPLICATION_CLASS(my_application_parent_class)->shutdown(application);
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line =
+      my_application_local_command_line;
+  G_APPLICATION_CLASS(klass)->startup = my_application_startup;
+  G_APPLICATION_CLASS(klass)->shutdown = my_application_shutdown;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  // Set the program name to the application ID, which helps various systems
+  // like GTK and desktop environments map this running application to its
+  // corresponding .desktop file. This ensures better integration by allowing
+  // the application to be recognized beyond its binary name.
+  g_set_prgname(APPLICATION_ID);
+
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID, "flags",
+                                     G_APPLICATION_NON_UNIQUE, nullptr));
+}

linux/runner/my_application.h

@@ -0,0 +1,21 @@
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication,
+                     my_application,
+                     MY,
+                     APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_

pubspec.lock

@@ -0,0 +1,522 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: e2eb0491ba5ddb6177742d2da23904574082139b07c1e33b8503b9f46f3e1a37
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.13.1"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.2"
+  code_assets:
+    dependency: transitive
+    description:
+      name: code_assets
+      sha256: "83ccdaa064c980b5596c35dd64a8d3ecc68620174ab9b90b6343b753aa721687"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.19.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.3"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "6d7fd89431262d8f3125e81b50d3847a091d846eafcd4fdb88dd06f36d705a45"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: c3f1ee72c96f8f78935e18aa8cecced9ab132419e8625dc187e1c2408efc20de
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  hooks:
+    dependency: transitive
+    description:
+      name: hooks
+      sha256: "025f060e86d2d4c3c47b56e33caf7f93bf9283340f26d23424ebcfccf34f621e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.3"
+  jni:
+    dependency: transitive
+    description:
+      name: jni
+      sha256: c2230682d5bc2362c1c9e8d3c7f406d9cbba23ab3f2e203a025dd47e0fb2e68f
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  jni_flutter:
+    dependency: transitive
+    description:
+      name: jni_flutter
+      sha256: "8b59e590786050b1cd866677dddaf76b1ade5e7bc751abe04b86e84d379d3ba6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.0.2"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.10"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.19"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.13.0"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.17.0"
+  native_toolchain_c:
+    dependency: transitive
+    description:
+      name: native_toolchain_c
+      sha256: "6ba77bb18063eebe9de401f5e6437e95e1438af0a87a3a39084fbd37c90df572"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.17.6"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: "100a1c87616ab6ed41ec263b083c0ef3261ee6cd1dc3b0f35f8ddfa4f996fe52"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.3.0"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: f096c55ebb7deb7e384101542bfba8c52696c1b56fca2eb62827989ef2353bbc
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "69cbd515a62b94d32a7944f086b2f82b4ac40a1d45bebfc00813a430ab2dabcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "2a376b7d6392d80cd3705782d2caa734ca4727776db0b6ec36ef3f1855197699"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.0"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "88f5779f72ba699763fa3a3b06aa4bf6de76c8e5de842cf6f29e2e06476c2334"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  protobuf:
+    dependency: "direct main"
+    description:
+      name: protobuf
+      sha256: "68645b24e0716782e58948f8467fd42a880f255096a821f9e7d0ec625b00c84d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.0"
+  protoc_plugin:
+    dependency: "direct dev"
+    description:
+      name: protoc_plugin
+      sha256: fb0554851c9eca30bd18405fbbfe81e39166d4a2f0e5b770606fd69da3da0b2f
+      url: "https://pub.dev"
+    source: hosted
+    version: "21.1.2"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  record_use:
+    dependency: transitive
+    description:
+      name: record_use
+      sha256: "2551bd8eecfe95d14ae75f6021ad0248be5c27f138c2ec12fcb52b500b3ba1ed"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.0"
+  shared_preferences:
+    dependency: "direct main"
+    description:
+      name: shared_preferences
+      sha256: c3025c5534b01739267eb7d76959bbc25a6d10f6988e1c2a3036940133dd10bf
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.5"
+  shared_preferences_android:
+    dependency: transitive
+    description:
+      name: shared_preferences_android
+      sha256: e8d4762b1e2e8578fc4d0fd548cebf24afd24f49719c08974df92834565e2c53
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.23"
+  shared_preferences_foundation:
+    dependency: transitive
+    description:
+      name: shared_preferences_foundation
+      sha256: "4e7eaffc2b17ba398759f1151415869a34771ba11ebbccd1b0145472a619a64f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.6"
+  shared_preferences_linux:
+    dependency: transitive
+    description:
+      name: shared_preferences_linux
+      sha256: "580abfd40f415611503cae30adf626e6656dfb2f0cee8f465ece7b6defb40f2f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      sha256: "649dc798a33931919ea356c4305c2d1f81619ea6e92244070b520187b5140ef9"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      sha256: c49bd060261c9a3f0ff445892695d6212ff603ef3115edbb448509d407600019
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.3"
+  shared_preferences_windows:
+    dependency: transitive
+    description:
+      name: shared_preferences_windows
+      sha256: "94ef0f72b2d71bc3e700e025db3710911bd51a71cefb65cc609dd0d9a982e3c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "56a02f1f4cd1a2d96303c0144c93bd6d909eea6bee6bf5a0e0b685edbd4c47ab"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.2"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.2"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: "8161c84903fd860b26bfdefb7963b3f0b68fee7adea0f59ef805ecca346f0c7a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.10"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "046d3928e16fa4dc46e8350415661755ab759d9fc97fc21b5ab295f71e4f0499"
+      url: "https://pub.dev"
+    source: hosted
+    version: "15.1.0"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  web_socket:
+    dependency: transitive
+    description:
+      name: web_socket
+      sha256: "34d64019aa8e36bf9842ac014bb5d2f5586ca73df5e4d9bf5c936975cae6982c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  web_socket_channel:
+    dependency: "direct main"
+    description:
+      name: web_socket_channel
+      sha256: d645757fb0f4773d602444000a8131ff5d48c9e47adfe9772652dd1a4f2d45c8
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
+sdks:
+  dart: ">=3.10.3 <4.0.0"
+  flutter: ">=3.41.0"

web/index.html

@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="telemetry_monitor">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>telemetry_monitor</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!--
+    You can customize the "flutter_bootstrap.js" script.
+    This is useful to provide a custom configuration to the Flutter loader
+    or to give the user feedback during the initialization process.
+
+    For more details:
+    * https://docs.flutter.dev/platform-integration/web/initialization
+  -->
+  <script src="flutter_bootstrap.js" async></script>
+</body>
+</html>

web/manifest.json

@@ -0,0 +1,35 @@
+{
+    "name": "telemetry_monitor",
+    "short_name": "telemetry_monitor",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}