diff --git a/client/.vscode/launch.json b/client/.vscode/launch.json
new file mode 100644
index 0000000..611d181
--- /dev/null
+++ b/client/.vscode/launch.json
@@ -0,0 +1,25 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "client",
+      "request": "launch",
+      "type": "dart"
+    },
+    {
+      "name": "client (profile mode)",
+      "request": "launch",
+      "type": "dart",
+      "flutterMode": "profile"
+    },
+    {
+      "name": "client (release mode)",
+      "request": "launch",
+      "type": "dart",
+      "flutterMode": "release"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/client/lib/core/app.dart b/client/lib/core/app.dart
index a48f870..1f52ed2 100644
--- a/client/lib/core/app.dart
+++ b/client/lib/core/app.dart
@@ -2,10 +2,12 @@ import 'package:flutter/material.dart';
 import 'package:toiki/core/bloc_providers.dart';
 import 'package:toiki/core/repository_providers.dart';
 import 'package:toiki/screens/main_screen.dart';
-import 'package:toiki/utls/constants.dart';
+import 'package:toiki/utils/constants.dart';
 
 class App extends StatelessWidget {
-  const App({Key? key}) : super(key: key);
+  const App({
+    super.key,
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/client/lib/core/bloc_providers.dart b/client/lib/core/bloc_providers.dart
index f879efb..7919cd1 100644
--- a/client/lib/core/bloc_providers.dart
+++ b/client/lib/core/bloc_providers.dart
@@ -4,7 +4,10 @@ import 'package:toiki/blocs/conversion/conversion_bloc.dart';
 import 'package:toiki/repositories/conversion_repository.dart';
 
 class BlocProviders extends StatelessWidget {
-  const BlocProviders({Key? key, required this.child}) : super(key: key);
+  const BlocProviders({
+    super.key,
+    required this.child,
+  });
 
   final Widget child;
 
diff --git a/client/lib/core/repository_providers.dart b/client/lib/core/repository_providers.dart
index 65c213c..d9b697f 100644
--- a/client/lib/core/repository_providers.dart
+++ b/client/lib/core/repository_providers.dart
@@ -1,10 +1,13 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:toiki/repositories/conversion_repository.dart';
-import 'package:toiki/utls/api.dart';
+import 'package:toiki/utils/api.dart';
 
 class RepositoryProviders extends StatelessWidget {
-  const RepositoryProviders({Key? key, required this.child}) : super(key: key);
+  const RepositoryProviders({
+    super.key,
+    required this.child,
+  });
 
   final Widget child;
 
diff --git a/client/lib/exceptions/http_entity_not_found_exception.dart b/client/lib/exceptions/http_entity_not_found_exception.dart
index e28405f..5d8a6ed 100644
--- a/client/lib/exceptions/http_entity_not_found_exception.dart
+++ b/client/lib/exceptions/http_entity_not_found_exception.dart
@@ -1,6 +1,7 @@
 import 'package:toiki/exceptions/http_bad_request_exception.dart';
 
 class HttpEntityNotFoundException extends HttpBadRequestException {
-  const HttpEntityNotFoundException({required String? message})
-      : super(message: message);
+  const HttpEntityNotFoundException({
+    super.message,
+  });
 }
diff --git a/client/lib/exceptions/http_missing_authorization_exception.dart b/client/lib/exceptions/http_missing_authorization_exception.dart
index 9bcf57b..7a0658f 100644
--- a/client/lib/exceptions/http_missing_authorization_exception.dart
+++ b/client/lib/exceptions/http_missing_authorization_exception.dart
@@ -1,6 +1,7 @@
 import 'package:toiki/exceptions/http_bad_request_exception.dart';
 
 class HttpMissingAuthorizationException extends HttpBadRequestException {
-  const HttpMissingAuthorizationException({required String? message})
-      : super(message: message);
+  const HttpMissingAuthorizationException({
+    super.message,
+  });
 }
diff --git a/client/lib/repositories/conversion_repository.dart b/client/lib/repositories/conversion_repository.dart
index 8e3cc48..f83125f 100644
--- a/client/lib/repositories/conversion_repository.dart
+++ b/client/lib/repositories/conversion_repository.dart
@@ -1,5 +1,5 @@
 import 'package:toiki/models/convert_url_response.dart';
-import 'package:toiki/utls/api.dart';
+import 'package:toiki/utils/api.dart';
 
 class ConversionRepository {
   ConversionRepository({required this.api});
diff --git a/client/lib/screens/main_screen.dart b/client/lib/screens/main_screen.dart
index 8b2568a..8fd2986 100644
--- a/client/lib/screens/main_screen.dart
+++ b/client/lib/screens/main_screen.dart
@@ -4,11 +4,13 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:toiki/blocs/conversion/conversion_bloc.dart';
 import 'package:toiki/blocs/conversion/conversion_event.dart';
 import 'package:toiki/blocs/conversion/conversion_state.dart';
-import 'package:toiki/utls/constants.dart';
+import 'package:toiki/utils/constants.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 class MainScreen extends StatelessWidget {
-  MainScreen({Key? key}) : super(key: key);
+  MainScreen({
+    super.key,
+  });
 
   static const route = '/';
 
diff --git a/client/lib/utls/api.dart b/client/lib/utils/api.dart
similarity index 97%
rename from client/lib/utls/api.dart
rename to client/lib/utils/api.dart
index 1bb3177..ce35412 100644
--- a/client/lib/utls/api.dart
+++ b/client/lib/utils/api.dart
@@ -6,7 +6,7 @@ import 'package:http/http.dart' as http;
 import 'package:toiki/exceptions/http_bad_request_exception.dart';
 import 'package:toiki/exceptions/http_entity_not_found_exception.dart';
 import 'package:toiki/exceptions/http_missing_authorization_exception.dart';
-import 'package:toiki/utls/env.dart';
+import 'package:toiki/utils/env.dart';
 
 class Api {
   final _client = http.Client();
diff --git a/client/lib/utls/constants.dart b/client/lib/utils/constants.dart
similarity index 100%
rename from client/lib/utls/constants.dart
rename to client/lib/utils/constants.dart
diff --git a/client/lib/utls/env.dart b/client/lib/utils/env.dart
similarity index 100%
rename from client/lib/utls/env.dart
rename to client/lib/utils/env.dart