I've been rebuilding my federated social media protocol, Jonline (https://github.com/JonLatane/jonline) for a while. Agents have really changed the game for what I can do with platform of mine, and this is one of the things I like the most. Among many things, they've made it very easy to make my Events platform an "ICS aggregator/repeater/router" of sorts. Eventually I'll post a blog post here about it.

Plus, at the moment, it's a good demo of federation of events from my band's site (https://ato.band), since we happen to have 2 gigs this weekend :)