NEXTDEVKIT is a ready-made template that helps developers build full-featured SaaS applications with Next.js, OpenNext, and SST. It comes with user authentication, payment flows, database integration, and built-in support for Vercel, Cloudflare Workers, and AWS. You can clone the repo, tweak a few variables and theme settings, then deploy to your favorite platform in minutes. Spend less time wiring up infrastructure and more time building what really matters.