Aplicação para controle financeiro pessoal
https://medium.com/flutter-community/flutter-code-organization-de3a4c219149
https://balta.io/blog/flutter-bloc-provider-state-management
API
https://medium.com/flutter-community/working-with-apis-in-flutter-8745968103e9
Singleton
https://forum.flutterando.com.br/d/59-criando-singleton-com-dart-flutter
Model Generator