when trying to fetch from https://anongit.gentoo.org/git/repo/sync/gentoo.git I get: error: RPC failed; HTTP 504 curl 22 The requested URL returned error: 504 fatal: the remote end hung up unexpectedly https://infra-status.gentoo.org/ shows a "?" for "Git Repositories". So I guess it's not only an issue on my end.
I had issues because of https://bugs.gentoo.org/800151 yesterday. So that might be related.
reboot fixed it. sorry for the noise.