StarQueue is a message queue server written in Python.
It is desined to be a more simple copy of Amazon Simple Queue Server.
Clients access it via HTTP. The API is documented at https://github.com/starqueue/starqueue/tree/main/starqueueserver/website
The database is Postgres.
When I developed it initially, I included seamless support for Postgres, MySQL and Microsoft SQL server.
At some point in the development I gave up on all databases except Postgres, though I have left the MySQL and SQL server code in place.
I deployed StarQueue as an online service at one point (no longer online). This github repo is a copy of the source code for that service.
This project is not live and is archived, but I have posted it here in case anyone finds it interesting.