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Overview

Arkitekt provides a set of architectural patterns for building modern apps. The same core ideas apply whether you are targeting Android only or building a Kotlin Multiplatform project.

Two Paths, One Philosophy

  • Android / Compose — ViewModel + ViewState + Hilt DI
  • KMP / Decompose — BaseComponent + State (data class) + Koin DI

Both paths share:

  • Use Cases for business logic (UseCase, FlowUseCase from cr-usecases)
  • Stores (repositories) for data access and caching
  • Events for one-shot UI communication

Injection Hierarchy

Layer Android / Compose KMP / Decompose
UI @Composable @Composable
Presentation ViewModel BaseComponent
Business Logic UseCase / FlowUseCase UseCase / FlowUseCase
Data Store / Dao / ApiService Store / Dao / ApiService

When to Choose Which Path

  • Android-only projects — use the Android path (core + compose modules with Hilt).
  • KMP projects targeting iOS, Desktop, or Web — use the Decompose path (decompose module with Koin).

Both paths depend on the cr-usecases module, which is fully KMP-compatible. Business logic written with Use Cases can be shared across all targets regardless of the path you choose.