Thriving 
TS Generation-first, open-source newsletter studio — write with AI, design with DESIGN.md tokens, send via Resend. Built with React + Hono + D1 on Cloudflare Workers.
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Thriving TS // readme
OpenNewsletter — The Open-Source Mailchimp & beehiiv Alternative
A generation-first newsletter studio. Describe a newsletter and let AI draft it, design it live with DESIGN.md tokens, and send it to a subscriber list you own. Built with React + Tailwind CSS + Hono + D1, deploys to Cloudflare Workers via Clawnify.
A self-hostable, open-source alternative to Mailchimp, beehiiv, Substack, and ConvertKit — the AI editor, the brand controls, and the sending pipeline, fully yours. No per-subscriber pricing, no lock-in.
Your contacts live in your own database, not in a sending provider’s account. The provider is just delivery, and it’s swappable.
Features
- Generation-first editor — write a prompt, get a structured draft (eyebrow, title, deck, Markdown body); revise it in place.
- Live DESIGN.md design panel — a Basic/Advanced token editor (colors, typography, layout, sections) that re-renders the preview as you type. The same tokens drive the sent email.
- Desktop / Mobile preview — a faithful canvas that mirrors the email renderer exactly.
- **Template…