fix

lib/main.dart

@@ -1,14 +1,30 @@
 import 'dart:io';
 
 import 'package:fluent_ui/fluent_ui.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:momo/fluent/app.dart';
 import 'package:momo/material/app.dart';
+import 'package:window_manager/window_manager.dart';
+import 'package:tray_manager/tray_manager.dart';
 
-void main() {
-  print(defaultTargetPlatform);
-  runApp(ProviderScope(child: const MyApp()));
+void main() async {
+  if (Platform.isLinux || Platform.isWindows || Platform.isMacOS) {
+    WidgetsFlutterBinding.ensureInitialized();
+    // Must add this line.
+    await windowManager.ensureInitialized();
+    WindowOptions windowOptions = const WindowOptions(
+      size: Size(800, 600),
+      center: true,
+      minimumSize: Size(300, 400),
+      // backgroundColor: Colors.transparent,
+      // skipTaskbar: false,
+      // titleBarStyle: TitleBarStyle.hidden,
+    );
+    windowManager.waitUntilReadyToShow(windowOptions, () async {
+      await windowManager.show();
+      await windowManager.focus();
+    });
+  }
+  runApp(const ProviderScope(child: MyApp()));
 }
 
 class MyApp extends StatelessWidget {
@@ -16,10 +32,6 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    if (Platform.isWindows) {
-      return const MyFluentApp();
-    } else {
-      return const MyMaterialApp();
-    }
+    return const MyMaterialApp();
   }
 }