TanStack Router

File-Based Routing

routes/
├── __root.tsx        # Root layout (meta, providers)
├── index.tsx         # / (homepage)
├── _app.tsx          # Layout for /_app/* routes
├── _app/
│   ├── index.tsx     # /app
│   └── settings.tsx  # /app/settings
├── posts.tsx         # /posts (list)
├── posts/
│   └── $id.tsx       # /posts/:id (detail)
└── api/
    └── auth/$.tsx    # /api/auth/* (catch-all)