Anything on github?
The original Id software release is there, but no dos version because of a sound library issue. (Why not release dos source without sound?
This is still under development, try it out:
https://sourceforge.net/projects/prboom-plus/
Where can I checkout the source code? Don't want a tar.gz.
http://www.doomarchive.com/download.asp?FileId=5583 and probably elsewhere.
PrBoom+
sudo apt-get install prboom-plus
Need to remap restart level key, it is right near my cursor keys.