1. Add `flutter_localizations` and `intl` dependencies to `pubspec.yaml`.
2. Create `l10n.yaml` to configure localization code generation.
3. Define localized strings in `.arb` files within the `lib/l10n` directory.
4. Integrate `AppLocalizations` into the `MaterialApp` widget.
5. Specify supported locales in the `MaterialApp` widget.
6. Access localized values using `AppLocalizations.of(context)!.key`.
7. Run `flutter gen-l10n` to generate localization files.