There is mostly functional git remote - https://github.com/ipfs-shipyard/git-remote-ipld - It's still missing "full" remote tracking with IPNS, that will get implemented soon after next go-ipfs release, so it's a bit weird to use now
Also, if you mostly use GitHub as a way to backup your code or to synchronise it between machines, and you're okay with spending a little bit, simply spin up a 5$/month VPS on digital ocean (or similar), set up your SSH keys, create bare git repos for your projects, and you're good to go. Private and simple.
There is mostly functional git remote - https://github.com/ipfs-shipyard/git-remote-ipld - It's still missing "full" remote tracking with IPNS, that will get implemented soon after next go-ipfs release, so it's a bit weird to use now
Git portal is also taking shape: https://igis.io/ (also accessible via any gateway - https://cloudflare-ipfs.com/ipns/igis.io/). Git repo is at https://github.com/ipfs-shipyard/IGiS (Dynamic features like pull-requests are hard).
Edit: formatting