From a Reddit post, TempleOS creator Terry Davis seems to have had a repository on his website
People don't believe I wrote my own compiler.
All the source code is on all the distros and on my website.
http://www.templeos.org/Wb/Home/Wb2/LineRep.html#l519 http://www.templeos.org/Wb/Home/Wb2/SymsAlpha.html http://www.templeos.org/Wb/
But, None of those links are still active. Has the source repository moved? Is there a public repository of the TempleOS source code? If it's open source, is the code included in the distribution? Ideally, I would get a git/cvs/svn repo though. Does Terry develop anywhere publicly, or just save locally and publish the source code in the ISOs?