I feel like BitTorrent as technology for decentralization and censorship resistance is severely underutilized by devs in the Bitcoin space. You can easy host entire websites on mutable torrents swarms, and would be unblockable.

Open source code for this exists, here's one example https://github.com/publiusfederalist/federalist

I would love to see some kind of smart contract system built on Bitcoin powered by torrents.