How to Save Data to LocalStorage and SharedPreferences in Flutter: Как создать простую интеграцию между с localstorage и плагином shared_preferences внутри приложения Flutter.
https://developer.school/how-to-save-data-to-localstorage-shared-prefs-in-flutter-flutter-web/
https://developer.school/how-to-save-data-to-localstorage-shared-prefs-in-flutter-flutter-web/