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vynl/LOCAL_SETUP.md

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# Vynl - Local Development Setup
## Prerequisites
- Docker and Docker Compose installed
- Spotify Developer account (for playlist import)
- Anthropic API key (for recommendations)
## 1. Configure Environment
Edit `backend/.env` and fill in your API keys:
```
SPOTIFY_CLIENT_ID=your-client-id
SPOTIFY_CLIENT_SECRET=your-client-secret
ANTHROPIC_API_KEY=your-api-key
```
Stripe keys are optional for local dev — billing will just not work without them.
## 2. Start Everything
```bash
docker compose up --build
```
This starts:
- **PostgreSQL** on port 5432
- **Redis** on port 6379
- **Backend API** on http://localhost:8000
- **Frontend** on http://localhost:5173
The backend runs Alembic migrations automatically on startup.
## 3. Open the App
Go to http://localhost:5173
- Register with email/password
- Or connect Spotify (must configure Spotify Developer App first)
## 4. Spotify Developer App Setup
1. Go to https://developer.spotify.com/dashboard
2. Create an app
3. Set redirect URI to: `http://localhost:5173/auth/spotify/callback`
4. Copy Client ID and Client Secret to `backend/.env`
Note: Spotify apps start in Development Mode (25 user limit). This is fine for testing.
## 5. Test the Flow
1. Register an account
2. Connect Spotify
3. Import a playlist
4. Go to Discover, select the playlist, click "Discover"
5. Save some recommendations
---
## External Access for Testers
To let others test without deploying to a server, use a **Cloudflare Tunnel** (free).
### Setup Cloudflare Tunnel
```bash
# Install cloudflared
curl -L https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64 -o /usr/local/bin/cloudflared
chmod +x /usr/local/bin/cloudflared
# Login (one time)
cloudflared tunnel login
# Create a tunnel
cloudflared tunnel create vynl-test
# Run the tunnel (points to your local frontend)
cloudflared tunnel --url http://localhost:5173 run vynl-test
```
This gives you a URL like `https://vynl-test-xxxxx.cfargotunnel.com` that anyone can access.
### Or use the quick method (no account needed)
```bash
cloudflared tunnel --url http://localhost:5173
```
This creates a temporary public URL instantly. Share it with testers. It expires when you stop the command.
### Important for external access
When using a tunnel, update `backend/.env`:
```
FRONTEND_URL=https://your-tunnel-url.cfargotunnel.com
SPOTIFY_REDIRECT_URI=https://your-tunnel-url.cfargotunnel.com/auth/spotify/callback
```
And add the tunnel URL as a redirect URI in your Spotify Developer App settings.
Then restart the backend:
```bash
docker compose restart backend
```