FlaskBB is pretty good. It uses Flask as the name implies which is a Python framework, but beyond that you don't need anything really startling to get it going.

FlaskBB is pretty good. It uses Flask as the name implies which is a Python framework, but beyond that you don't need anything really startling to get it going. It containerises reasonably nicely too. I've been running https://rangerovers.pub https://rangerovers.pub on it for about five or six years now.