Comment by KraftyOne

You build a distributed system on top of this! For example, you may have many distributed workers durably executing workflows from the Postgres-backed task queue. The Postgres transactions allow you to atomically perform operations spanning both your task queue and your business data.

Here's another blog post about how a Postgres-backed task queue can run at scale: https://www.dbos.dev/blog/making-postgres-queues-scale