One binary instead of five services
Pylon is the open-source application framework from Stack0. Typed schema, row-level policies, server functions, live queries, auth, and React server rendering ship in a single binary. SQLite by default, Postgres when you need it.
- Free and open source
- MIT licensed. No key to request, no sales call, and you can self-host it anywhere.
- Start in one command
- npm create @pylonsync/pylon@latest my-app, then npm run dev. Bun 1.0 or newer on PATH.
- Built for real applications
- SaaS products, internal tools, marketplaces, collaboration apps, and local-first apps that work offline.
- Agent-native
- A published authoring guide, an llms.txt, and an MCP server, so a coding agent can write Pylon correctly.
Not the right tool for a static site with no data, a single serverless function, or a codebase already committed to another full-stack framework you are not migrating.