I’m a bit confused as to how federation works.

I have an account here, and see a community I want to join in another instance… but I the login option only lets me log in with an account on that instance.

Is participating in communities cross-instance not possible yet?

Lemmy@lemmy.ml
Technology@beehaw.org

It kinda bothers me that communities are formatted like that instead of their actual http URL. When out of context, this is converted into a mailto: link, whereas using the http URL would result in a link I can click to actually get to that community.