In case your instance does not federate to something you would like it to, follow these steps:

  • Go to your instance URL in a web browser - https://lemmy.cafe
  • Click Communities
  • Enter something in format !community@instance, e.g. !general@lemmy.cafe. Click the search button.
  • Nothing will show up, give it a couple of seconds
  • Click Communities again
  • Select All
  • Your searched community should now be on the list
  • Click Subscribe next to it
  • ???
  • Profit!