Looking for Fediverse oddities!

I am super late, OVER THE DEADLINE to submit the slides of my talk at SFSCON 2025, but I still want to add a few little things, and I need tips.

My presentation ends by listing a few “crazy but true” things about the Fediverse.

Can you help me find a few more in the next couple hours?

So far I have:

Truth Social uses Mastodon and it was forced to open-source its code after it was discovered
Some public institutions host their own Fediverse instances!
You could host a Fediverse server in your living room
You can use a car’s on-board computer to power a Fediverse server
You can synchronize your personal calendar with federated calendars from the Fediverse (using @gancio)
You can buy indie music by paying an artist directly (using @bandwagon)
You can do academic peer-reviews via the Fediverse (using @bonfire)

What else??? I only want cool or incredible things.

bonfire.cafe