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What is Yugen?
Yugen is the most complete TypeScript starter kit for building highly-scalable web applications. It combines the best of modern tools — TanStack Start, Convex, Polar, Resend, and Cloudflare — into a production-grade boilerplate that's 100% type-safe and ready in under 10 minutes.
The boilerplate comes with pre-wired integrations for authentication (BetterAuth with 2FA, passkeys, SSO, and waitlist), payments (Polar as Merchant of Record for subscriptions and one-time purchases with global tax compliance), and email (Resend for transactional and marketing emails). Backend complexity is abstracted away with Convex, offering a real-time database, serverless functions, and automatic type safety.
Designed for both solo developers and teams, Yugen includes comprehensive step-by-step documentation, MVP documentation prompts trained on the Alex Hormozi content architecture, and tools like Ruler and Ultracite to keep AI coding agents from hallucinating. Infrastructure is managed via Alchemy and Cloudflare Workers for fast global performance, with monitoring from Sentry and BetterStack.
With predictable pricing and generous free tiers from integrated services, you can build unlimited projects without surprise bills. Join founders who've shipped their MVPs in days and sleep well knowing their stack is solid.
How to use Yugen
- 1
Purchase the lifetime license and access the boilerplate repository.
- 2
Follow the setup guide to configure environment variables and dependencies in under 10 minutes.
- 3
Use pre-configured integrations to add authentication, payments, and email to your app.
- 4
Deploy globally on Cloudflare Workers and set up error monitoring with Sentry and BetterStack.
- 5
Utilize the built-in documentation and prompts to document your project and guide AI tools.
Key features
End-to-end type safety across the entire stack with TanStack Start and Convex.
Pre-wired integrations for auth, payments, email, and storage (BetterAuth, Polar, Resend, Cloudflare).
Real-time reactive database and serverless functions via Convex, with generous free tiers.
LLM-ready codebase that prevents AI hallucinations using Ruler and Ultracite.
Comprehensive documentation with step-by-step guides and MVP documentation prompts.
Use cases
- Rapidly build and launch a SaaS MVP with ready-made payments and user management.
- Create a subscription-based app with global tax compliance handled by Polar.
- Enable non-technical founders to understand project architecture through in-code documentation.
- Develop with AI assistants that stay on track thanks to LLM-friendly code conventions.
- Scale from zero to thousands of users without worrying about backend infrastructure.
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Frequently asked questions about Yugen
Common questions to help you decide if Yugen is right for you.