NextBlock CMS: Full-stack open-source CMS for Next.js 16 (1-click deploy on Vercel)

Hey everyone!

Just opened the public beta for NextBlock CMS—an open-source, full-stack CMS engineered specifically around Next.js 16 and Supabase.

Rather than wiring a separate headless CMS into Next.js and dealing with schema duplication or API latency, NextBlock runs full-stack inside the same Next.js App Router tree.

Why it’s built for Vercel:

  • 1-Click Vercel Deploy: Deploys directly to Vercel with zero manual environment variable setup for the Supabase backend.

  • No Hydration Bugs: Content from the Notion-style Tiptap editor is saved as strict Postgres JSONB instead of raw HTML, rendering cleanly in React Server Components.

  • Fast Defaults: Scores 100/100 on Lighthouse out of the box.

  • Extras: Optional Stripe/Freemius e-commerce and BYOK AI block generation built-in.

:wrapped_gift: Beta Tester Incentive: We need developers to test deployment flows, edge caching, and the editor. If you check it out and share any feedback or bugs, I’ll send you a lifetime free license for our premium AI and e-commerce modules ($500/yr value).

Would love to hear what you think of the setup and developer experience!