So I have a personal appreciation for any app that can do this. Actually making federation work is pretty impressive.
When I was a kid I wrote a chat app on the Dartmouth College time sharing system. It was called “Echo” and I used it as a swap-in replacement for the default app “Excalibur”. Everyone hated it.
INDICATORS OF COMPROMISE (IOC)
InfoSec Community within the Fediverse. Newbies, experts, gurus - Everyone is Welcome! Instance is supposed to be fast and secure.
We have a Getting Started Guide here: https://ioc.wiki/mastodon
HAVE FUN and STAY SAFE!