Calckey is a Fediverse server type which includes lots of features that Mastodon doesn't yet have, such as emoji reactions, markdown, customisable interfaces, widgets and lots more.
To see for yourself, have a look on the official website at:
For the latest updates, follow the official account at:
If you want to try signing up, there's a stable server at:
@feditips @calckey I'm getting a blank screen when I go to https://calckey.social/. I tried Firefox and Chrome.
Give it a bit of time, I think it is being quite slow at the moment! :/
There are other servers too, you can find a listing of them on the website at https://calckey.org/join/