diff --git a/tool/brand.dart b/tool/brand.dart
new file mode 100644
index 0000000..165fdf7
--- /dev/null
+++ b/tool/brand.dart
@@ -0,0 +1,143 @@
+import 'dart:io';
+
+const appName = 'ACME Client';
+const packageId = 'com.acme.client';
+const version = '1.0.0+1';
+const url = "https://example.com";
+final iconPath = '${Platform.environment['HOME']}/Downloads/icon.png';
+
+const keystoreFilePath = 'android/android.keystore';
+const keystoreAlias = 'key';
+const keystorePassword = 'password';
+
+Future<void> main() async {
+  await _generateIcons(iconPath);
+  await _updateTitle(appName);
+  await _updatePackageId(packageId);
+  await _updateVersion(version);
+  await _updateUrl(url);
+  await _createKeystore();
+  stdout.writeln('Please run `flutterfire configure` now.');
+}
+
+Future<void> _generateIcons(String icon) async {
+  final dir = Directory('ios/Runner/Assets.xcassets/AppIcon.appiconset');
+  dir.deleteSync(recursive: true);
+  dir.createSync();
+
+  File('android/app/src/main/res/drawable/ic_launcher_foreground.xml').delete();
+  File('android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml').delete();
+
+  final f = await _writeTempYaml('flutter_launcher_icons.yaml', '''
+flutter_launcher_icons:
+  android: true
+  ios: true
+  image_path: "$icon"
+  remove_alpha_ios: true
+''');
+  await _run('flutter', ['pub', 'run', 'flutter_launcher_icons']);
+  await f.delete();
+
+  await _replaceInFile(
+    'android/app/src/main/AndroidManifest.xml',
+    RegExp(r'\s*<meta-data\s+android:name="com\.google\.firebase\.messaging\.default_notification_icon"[\s\S]*?/>', multiLine: true),
+    '',
+  );
+}
+
+Future<void> _updateTitle(String name) async {
+  await _replaceInFile(
+    'android/app/src/main/AndroidManifest.xml',
+    RegExp(r'android:label="[^"]*"'),
+    'android:label="$name"',
+  );
+
+  await _replaceInFile(
+    'ios/Runner/Info.plist',
+    RegExp(r'<key>CFBundleDisplayName</key>\s*<string>.*?</string>'),
+    '<key>CFBundleDisplayName</key>\n\t<string>$name</string>',
+  );
+}
+
+Future<void> _updatePackageId(String id) async {
+  await _replaceInFile(
+    'android/app/build.gradle.kts',
+    RegExp(r'applicationId = ".*?"'),
+    'applicationId = "$id"',
+  );
+
+  await _replaceInFile(
+    'ios/Runner.xcodeproj/project.pbxproj',
+    RegExp(r'PRODUCT_BUNDLE_IDENTIFIER = org\.traccar.*?;'),
+    'PRODUCT_BUNDLE_IDENTIFIER = $id;',
+  );
+}
+
+Future<void> _updateVersion(String version) async {
+  await _replaceInFile(
+    'pubspec.yaml',
+    RegExp(r'^version:\s*.*$', multiLine: true),
+    'version: $version',
+  );
+}
+
+Future<void> _updateUrl(String url) async {
+  await _replaceInFile(
+    'lib/screens/main_screen.dart',
+    RegExp(r'https://demo\.traccar\.org'),
+    url,
+  );
+}
+
+Future<void> _createKeystore() async {
+  final args = [
+    '-genkeypair',
+    '-v',
+    '-keystore', keystoreFilePath,
+    '-alias', keystoreAlias,
+    '-keyalg', 'RSA',
+    '-keysize', '2048',
+    '-validity', '10000',
+    '-storepass', keystorePassword,
+    '-keypass', keystorePassword,
+    '-dname', 'CN=Brand, OU=Dev, O=Company, L=City, S=State, C=US',
+  ];
+  await _run('keytool', args);
+
+  final file = File('android/key.properties');
+  final content = '''
+storePassword=$keystorePassword
+keyPassword=$keystorePassword
+keyAlias=$keystoreAlias
+storeFile=../../$keystoreFilePath
+''';
+  await file.writeAsString(content);
+
+  await _replaceInFile(
+    'android/app/build.gradle.kts',
+    RegExp(r'val\s+keystorePropertiesFile\s*=.*'),
+    'val keystorePropertiesFile = rootProject.file("key.properties")',
+  );
+}
+
+Future<File> _writeTempYaml(String name, String content) async {
+  final file = File(name);
+  await file.writeAsString(content);
+  return file;
+}
+
+Future<void> _replaceInFile(String path, RegExp pattern, String replacement) async {
+  final file = File(path);
+  if (!await file.exists()) return;
+  final text = await file.readAsString();
+  final newText = text.replaceAll(pattern, replacement);
+  if (newText != text) await file.writeAsString(newText);
+}
+
+Future<void> _run(String cmd, List<String> args) async {
+  final proc = await Process.start(cmd, args);
+  await stdout.addStream(proc.stdout);
+  await stderr.addStream(proc.stderr);
+  final code = await proc.exitCode;
+  if (code != 0) throw Exception('$cmd ${args.join(" ")} failed ($code)');
+}