This is maybe one of the few use cases where a cryptocurrency can help; in a similar vein to the effectiveness of BitTorrent.
Specifically, Filecoin (built by the IPFS folks) could be used as a datastore for git. You can send DMCAs to pseudonymous Filecoin operators all you want; but the content will still be up if one operator keeps hosting it.
Hopefully it will also encourage all commits and repositories to be PGP signed (and not through a centralized FVEY platform), strengthening security, authenticity, and trust.
Space-based crypto-funded storage for guaranteeing that one operator.
The best part about non-GEO satellites is that, although you can't see them 24/7 from one location, that also makes it incredibly difficult to jam their uplinks continuously.
Until then, something IPFS based.