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# CLAUDE.md
## Project Overview
Feedaka is a personal RSS/Atom feed reader. Monorepo with a Go backend and React/TypeScript frontend, communicating via REST API.
## Tech Stack
- **Backend:** Go 1.24+, Echo v4, oapi-codegen (OpenAPI server stubs), SQLite with sqlc
- **Frontend:** React 19, TypeScript, Vite, Tailwind CSS, openapi-fetch (REST client), wouter (routing)
- **API Schema:** TypeSpec → OpenAPI 3.x → oapi-codegen (Go) + openapi-typescript (TS)
- **Task Runner:** [just](https://github.com/casey/just) (justfiles at root and `backend/`)
- **Linting/Formatting:** Biome (frontend), go fmt (backend)
- **Code Generation:** TypeSpec + oapi-codegen + openapi-typescript + sqlc
## Common Commands
### Build & Dev
```sh
just build # Build both frontend and backend
just dev # Start dev servers (frontend + backend)
just fmt # Format all code
just check # Type-check all code
just generate # Regenerate API and DB code (TypeSpec → OpenAPI → Go/TS)
```
### Frontend (run from `frontend/`)
```sh
npm run build # Build with TypeScript + Vite
npm run dev # Start Vite dev server
npm run check # Run Biome checks
npm run fix # Auto-fix with Biome
npm run generate # Generate TypeScript types from OpenAPI
```
### Backend (run from `backend/`)
```sh
just build # Compile Go binary
just fmt # go fmt
just check # Verify build compiles
just generate # Run go generate (oapi-codegen + sqlc)
```
## Code Generation
Generated files — do not edit by hand:
- `openapi/openapi.yaml` — TypeSpec output (OpenAPI 3.x)
- `backend/api/generated.go` — oapi-codegen output (Echo server stubs + models)
- `backend/db/users.sql.go`, `backend/db/articles.sql.go`, `backend/db/feeds.sql.go` — sqlc output
- `frontend/src/api/generated.d.ts` — openapi-typescript output
Regenerate with `just generate` from the repo root.
## Project Structure
```
typespec/
main.tsp # API schema definition (source of truth)
tspconfig.yaml # TypeSpec compiler config
openapi/
openapi.yaml # Generated OpenAPI 3.x spec
backend/
cmd/ # CLI commands (serve, migrate, create-user)
api/ # REST API handlers + generated server stubs
db/ # Database layer, migrations, sqlc queries
feed/ # Feed fetching logic
auth/ # Authentication
config/ # Configuration
context/ # Context helpers
sqlc.yaml # sqlc config
frontend/
src/
api/ # Generated TypeScript types
components/ # React components
pages/ # Page components
contexts/ # React contexts (auth)
hooks/ # Custom hooks
services/ # API client setup
biome.json # Biome config
```
## CI
CI (`just check`, `just build`, `just fmt`) runs on pushes and PRs to main. Formatting changes must be committed before pushing — CI fails if `just fmt` produces uncommitted changes.
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