expo-bulletproof-structure
Bulletproof Expo Structure
Project structure pattern for Expo/React Native apps. Adapted from Bulletproof React for the mobile ecosystem with Expo Router's file-based routing.
Core Principle
The app/ directory is a thin routing layer. All business logic lives in features/. Shared code lives in top-level directories. The dependency graph flows one direction only.
Directory Structure
app/ # ROUTING ONLY — maps URLs to screens
(tabs)/ # Tab group layout
index.tsx # Home tab route
explore.tsx # Explore tab route
_layout.tsx # Tab navigator config
(auth)/ # Auth flow group
sign-in.tsx
sign-up.tsx
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