Comment by mads_quist

I really like the emergence of simple queuing tools for robust database management systems. Keep things simple and remove infrastructure complexity. Definitely a +1 from me!

For handling straightforward asynchronous tasks like sending opt-in emails, we've developed a similar library at All Quiet for C# and MongoDB: https://allquiet.app/open-source/mongo-queueing

In this context:

    LISTEN/NOTIFY in PostgreSQL is comparable to MongoDB's change streams.
    SELECT FOR UPDATE SKIP LOCKED in PostgreSQL can be likened to MongoDB's atomic read/update operations.