@gruber @sfalken This account is on Friendica.
All posts get dumped into the fediverse where the other servers can accept them for display.
I believe it is based on a mail server model where messages can go through multiple servers.
One thing I don't understand is channels on calckey. Are messages.on a calckey server only accessible to other users on that server, or via ANY calckey server?
Similarly with groups. They look like you can add folk from any instance, but people on, for instance, mastodonapp.uk never receive any invite or notification.
@atomicpoet any ideas?