We actually wrote a blog post recently on why we chose Postgres! https://www.dbos.dev/blog/why-postgres-durable-execution https://www.dbos.dev/blog/why-postgres

We actually wrote a blog post recently on why we chose Postgres! https://www.dbos.dev/blog/why-postgres-durable-execution https://www.dbos.dev/blog/why-postgres-durable-execution There's no technical reason why this couldn't be done with another database, and we may add support for more in the future (DBOS Python already supports SQLite), but we're not working on it right now.