What criteria do you follow when determining an architectural solution for a specific project?

When choosing an architecture for a Flutter project, I consider the following criteria:

• Application complexity: for simple apps, Provider or setState are sufficient; for complex ones, BLoC, Redux, or Riverpod are preferable.
• Team and experience: if the team is familiar with a certain pattern, it's better to use it to speed up development.
• Scalability and support requirements: architectures with clear separation of responsibilities (e.g., BLoC) facilitate maintenance.
• Testing requirements: some architectures are easier to cover with tests.
• Performance: minimizing unnecessary UI redraws.

For example, for a large corporate application, I choose BLoC or Riverpod, and for a small MVP — Provider or even setState.