There is BitTorrent which I’m sure you’re aware of, and then there is also WebTorrent which you may not.
I’m also actively working on this exact problem with WebMirror with the key difference being that it works in browsers without requiring any additional software. Here is its demo: https://webmirror-demo.netlify.app/
ActivityPub :) People spend an incredible amount of time on social media—whether it be Facebook, Instagram, Twitter/X, TikTok, and YouTube—so it’d be nice to liberate that.
Why?