Yugen

Yugen gives you a clean, predictable starting point. Built on TanStack Start, Convex, BetterAuth, Polar. It's fully type-safe and has unmatched developer experience (none of that NextJS, Supabase garbage) Intentionally designed so that your AI agents can rip through your codebase without breaking things (or hallucinating!). Those are not our words. They're the words of the developers building with it right now. It handles all the boring setup and keeps costs stable, so you can focus on shipping features to keep your users happy.