@ebooksyearn I've been playing around with Nostr. It has maybe 500 users and is extremely barebones (I mentioned it here the other day). But Jack Dorsey is talking about it, so that's how it got included.
Tribel got some buzz at the beginning of the Musk regime as a possible alternative (it sucks).
@mmasnick @ebooksyearn Tribel not only sucks, it’s run by naked grifters.