After nearly a month of waiting, CalcKey has announced their official rebranding as Firefish.
CalcKey adopts a new name, new logo, new site, and new project infrastructure. While the name is somewhat odd, this feels like a really big step forward for the project.
It's basically an alternate version of Mastodon, similar to how Kbin and Lemmy both do similar things while being seperate projects, and a fork of another project called Misskey
For the most part. There's a bunch of different microblogging and macroblogging platforms that all talk to each other through ActivityPub, but of course there are occasionally quirks when it comes to compatibility.