How to implement Flutter localization with GetX for multiple languages (English and Malayalam)?

I'm building a Flutter app and want to support multiple languages, specifically English (en) and Malayalam (ml). I am using the GetX package for state management and routing, and I want users to dynamically switch languages within the app.

My requirements: Support for English and Malayalam.

User can switch language at runtime (e.g., using a dropdown or button).

Use GetX localization features instead of intl or flutter_localizations manually.

create a dart file for your translations e.g app_translations.dart and define your translations in it like this:

class AppTranslations extends Translations {
  @override
  Map<String, Map<String, String>> get keys => {
        // English Translations
        'en_US': {
          'app_title': 'My App',
          'welcome_message': 'Welcome to MY App',
         },
        // Malayalam Translations
        'ml_IN': {
          'app_title': 'IN Malayalam',
          'welcome_message': 'Welcome message in Malayalam',
         },
}

create Object of this class and provide it to Material app like this:

 Widget build(BuildContext context) {
    return GetMaterialApp(
      // Localization settings
      translations: AppTranslations(), // Your translations class
      locale: initialLocale, // initialLocale you can get it from local storage for persistent locale settings. 
      supportedLocales: const [ // Your supported Locales
         Locale('en', 'US'),
         Locale('ml', 'IN'),
      ],
      home: HomeScreen(),
    );
  }

Then in the app you can use it like this:

@override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('app_title'.tr), // Translated AppBar title
      ),
      body: Center(
        child: Text(
                'welcome_message'.tr, // Using .tr to get the translated string
              ),
      ),
    );
  }
}

and you can switch the language by the following method:

Get.updateLocale(newLocale);