[rgovostes]

For a Stack Exchange-alike, the ROS project hosts one at https://answers.ros.org which is powered by Askbot (https://askbot.com/), which says it is an open source Django app, but I didn’t see the code at a quick glance.

[frafra]

Latest release is from 2015: https://github.com/ASKBOT/askbot-devel/tags.