first implementation finished

app/lib/features/app_widget/domain/services/home_widget.dart

@@ -0,0 +1,23 @@
+import 'package:home_widget/home_widget.dart';
+import 'package:kagi_bang_bang/domain/entities/received_parameter.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:rxdart/rxdart.dart';
+
+part 'home_widget.g.dart';
+
+@Riverpod(keepAlive: true)
+FutureOr<bool> widgetPinnable(WidgetPinnableRef ref) async {
+  return await HomeWidget.isRequestPinWidgetSupported() ?? false;
+}
+
+@riverpod
+Raw<Stream<ReceivedParameter>> appWidgetLaunchStream(
+  AppWidgetLaunchStreamRef ref,
+) {
+  // ignore: discarded_futures
+  final initialStream = HomeWidget.initiallyLaunchedFromHomeWidget().asStream();
+
+  return ConcatStream([initialStream, HomeWidget.widgetClicked])
+      .whereNotNull()
+      .map((uri) => ReceivedParameter(null, uri.host));
+}