Why Traditional Clean Architecture Stalls in Real-Time Cloud Apps

Most enterprise Flutter tutorials preach Uncle Bob's Clean Architecture or classic BLoC layering. They show neat diagrams with concentric circles: Presentation, Use Cases / Interactors, Repositories, and Data Sources.

Yet nearly every one of those tutorials demonstrates the architecture exclusively with static REST request-response endpoints or trivial counter apps.

The moment you build a modern, datastore-backed application—powered by Firebase Cloud Firestore, Supabase, or real-time WebSockets—traditional Clean Architecture rapidly deteriorates into one of two anti-patterns:

The "Anemic Lasagna" Trap: Layers of pass-through classes (Controller.get() ➔ UseCase.execute() ➔ Repository.fetch() ➔ DataSource.get()) that merely forward method invocations to the layer below without transforming data, encapsulating invariants, or providing architectural protection. You end up writing 4 files, 3 interfaces, and 20 lines of ceremonial glue for a single read operation.