One musing: I did run into my first "issue" with federated Git hosting the other day while setting up Neovim on a new machine. One of the plugins I use is hosted on Tangled and I guess its backing Knot was down. This was awkward for two reasons:
1. It as unclear to me from the Tangled website the backing knot was the issue (for a while I thought it was something on my end)
2. I really had no backup plans for something like a Neovim plugin's source forge being down and, clearly, neither did the Neovim package manager as it just kept showing an error on every session I started with no way to fix it :).
I suppose in the long run we really shouldn't be assuming that code storage is just Always There or easily cached somewhere, but I anticipate some growing pains in the mean time. ATProto doesn't seem to have the benefit ActivityPub has where if the instance I wanted to view content on was down I can usually find some other instance that's gotten the messages.