Easy deployments in test server running in public network
Some bugs can only be detected after running the scanner several hours in the public network. Having a fabfile or similar would easir that deploying automatically in a test server.
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.