# LLM Skill Marketplace

Go + Postgres marketplace where authenticated users can upload LLM skill files, sell them, and buyers can unlock and copy/download purchased skills.

## Stack
- Backend: Go (`go run .`)
- Frontend: vanilla HTML/CSS/JS
- Database: Postgres
- Auth: Authentik forward auth (identity headers)
- Config: environment variables with `.env` support

## Run
1. Copy `.env.example` to `.env` and set values.
2. Start Postgres and create the target database.
3. Install dependencies:
   ```bash
   go mod tidy
   ```
4. Start server:
   ```bash
   go run .
   ```
5. Open `http://localhost:8080`.

## Local dev mode (no auth setup)
Set `DEV_MODE=true` in `.env`.
In this mode, protected routes always authenticate as:
- `sub`: `demo-user-001`
- `email`: `demo@example.com`
- `name`: `Demo User`

## Forward auth flow (production)
When `DEV_MODE=false`, deploy this app behind Authentik forward auth.
The proxy/auth layer must validate authentication and pass identity headers to the app.
The app reads:
- `X-Authentik-Uid` (required; fallback `X-Forwarded-User`)
- `X-Authentik-Email`
- `X-Authentik-Name` (fallback `X-Forwarded-Preferred-Username`)

## Key routes
- `GET /dashboard`: upload form
- `GET /skills`: browse listings and buy
- `GET /my-skills`: purchased skills and copy/download access
- `POST /api/upload`: upload and list a skill
- `POST /api/purchase`: buy a skill
- `GET /api/my-skills`: owned purchased list
- `GET /uploads/:id`: download unlocked skill file