Bare-bones Supabase OTP + MongoDB + Stripe starter

Minimal SvelteKit TypeScript frontend and FastAPI backend.

Recommended deployment path:

• Supabase for Auth (required)
• MongoDB for database (required) [Recommended to deploy to railway for lowest cost, Atlas for production scale]
• Fly.io, Railway or AWS ECS for server deployment.

Features:

• Supabase OTP code signup/login with JWKS-based JWT verification
• MongoDB user/profile storage
• Stripe subscription checkout
• User-controlled activity tracking via /telemetry/action
• Tiers: free, plus monthly/annual, pro monthly/annual
• Frontend loads plans from GET /plans
• Google Analytics loaded only after cookie consent
• All styling lives inside Svelte files

This project was built to make it easy to start commercial apps - and provide coding agents a solid base for success on the important stuff.

Out of the box you get user management, payments, database setup, telemetry foundations, and a frontend.

Docs

See docs/ for concise guides:

• docs/auth.md
• docs/payments.md
• docs/client.md
• docs/server.md
• docs/user.md
• docs/telemetry.md
• docs/gdpr.md
• docs/schemas.md

GDPR notes

Current privacy controls:

1. Users can opt in and out of product activity tracking from account settings.
2. The backend checks tracking_enabled before storing telemetry.
3. Telemetry is disabled by default for new users.

Implemented self-service privacy endpoints:

1. GET /me/export downloads the user's Mongo profile data.
2. DELETE /me deletes the Mongo user and Supabase auth user.