> I wonder if you could use this in a Django project with Channels, and stream database changes over websocket to the client.I wonder if you could use this in a Django project with Channels, and stream database changes over websocket to the client.

That's exactly what I'm doing with this! :) But you don't even need channels for that! The point is to simplify the stack.

    > What is the purpose of setting the isolation level to autocommit?

Notifications are only sent after a transaction has been committed, see: https://www.postgresql.org/docs/12/sql-listen.html

Here is an example in the psycopg2 documentation: https://www.psycopg.org/docs/advanced.html#asynchronous-noti...