Use own LLVM for wasi-sdk builds
This is essentially https://bugzilla.mozilla.org/show_bug.cgi?id=1605708.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information
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.
This is essentially https://bugzilla.mozilla.org/show_bug.cgi?id=1605708.