One fun open source software I've played with, that I don't think many have heard of, is Deepstream.io. It attempts to be a batteries included real-time web ser

One fun open source software I've played with, that I don't think many have heard of, is Deepstream.io. It attempts to be a batteries included real-time web server that works with websockets, and can function as pub/sub server and client. It has a connector for using PostgreSQL as the database. The frontend JavaScript library is really easy to get working. https://deepstream.io/tutorials/concepts/what-is-deepstream/ https://deepstream.io/tutorials/concepts/what-is-deepstream/ https://github.com/deepstreamIO/deepstream.io https://github.com/deepstreamIO/deepstream.io (I'm not affiliated with the project.)