I still have my mirror/backup of some of the bitcoin repositories up as well: http://nxshomzlgqmwfwhcnyvbznyrybh3gotlfgis7wkv7iur2yj2rarlhiad.onion
It doesn’t provide a nice user interface like gitlab, though. I’m hesitant to run anything that requires dynamic server functionality.
I should probably add the new metadata mirroring, as I’m still using the ancient bitcoin-gh-meta script.