Open Source Durable Objects for Postgres

Author here.

celld and workerd give you Durable Objects if you run another daemon. This is a library your app loads, with state stored in the SQL database you already have (Postgres, MySQL and SQLite supported). No daemon required, no new infrastructure and monitoring, no broker, and no vendor account.

Pre-1.0, MIT, TypeScript, in browser (with WASM SQLite), and Ruby too. Happy to answer anything.