GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.
https://www.torproject.org/about/sponsors.html.en at Allium (up to $100k) you place a link to http://chacs.nrl.navy.mil/
The same link appears again at "Past sponsors".
They don't work for me.