I would love my package manager to support a simple fetch helper protocol to plug-in distributed caches from torrents (with webseeds), to mDNS, heck just a Redis service tracking which systems should have which packages cached per site, to something not much more complex than an old fashioned HTTP caching proxy.
Well if you use apt you might be in luck. There's a bunch of apt transports. I don't know the maturity of them but you can google apt-transport-debtorrent, apt-transport-s3, and one for ipfs.
