I would like to add (bare) repositories on network directories that are locally mounted. "Add more repositories" gives me many choices, which apparently does not include this specifically. It does have "Removable drive" which sees the CIFS directory (perhaps because it's under /media?) but not the AFS directory, and there doesn't seem to be a way to enter a path where it's not inclined to look ("rescan for removable drives" still misses /afs). I am comfortable using shell commands, but I don't know what commands to use.
It's just a git remote..
should be all you need.
If you want to do with using the webapp, go to the "Repository" menu in the upper-left, and select "Add another local repository."
You can then enter the path to your repository, whevever it is, and click on "combine the repositories"
But, like Justin said, this just sets up a git remote, so doing it at the command line will work just as well.
git init --barefirst? I discovered the second approach before reading the comment and it worked, but it did not make a bare repository as happens with the "removable drive" option in the assistant.