This is super slick. I really wish there was something that did the same, but using torrent protocol, so all your servers shared it.

Not a torrent protocol but p2p, check out https://github.com/spegel-org/spegel it's super cool.

I took inspiration from spegel but built a more focused solution to make a registry out of a Docker/containerd daemon. A lot of other cool stuff and workflows can be built on top of it.