Less Boilerplate

Eliminate the need for countless interfaces and implementations. Archer provides contractual DataSources and Repositories that reduce boilerplate while maintaining clean architecture principles.

Functional & Type-Safe

Built on Arrow, Archer brings functional programming patterns to Clean Architecture. Use Either, Ice, or Nullable for type-safe error handling with raise and typed errors.

Flexible Strategies

Compose data sources with simple DSL. Add caching, expiration, validation, and more. Switch between NetworkFirst, StoreFirst, or custom strategies with minimal code changes.