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.
In this section we should recommend and explain how to use unix domain sockets:
To enable design management, you'll need to meet the requirements. If you need help, reach out to our support team for assistance.