Kumiko

About this product

Kumiko is an open-source (MIT) backend framework for business software. You describe the domain in TypeScript, and tenant scoping, auth and roles, an audit trail, realtime updates and a schema-driven UI follow from it. It runs on Bun and Postgres, and you can host it yourself. The npm package ships an AGENTS.md, so coding agents can work from the installed docs. PublicStatus, Offlot and CashColt run on it in production.

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