Log in to an instance. Search for specific communities using the following format:
communityname@instanceurl
Subscribe.
Alternatively, you can use the “all” filter to see content from all instances that federate with yours.
Update: the format I described above is optional. Just search by community name and you’ll find it.
They stopped showing on memmy a couple of days ago, however my other account @ lemmy.ml works fine.
Search also seems to be broken.
Maybe some api change between version 0.18.1 and the one running on this instance?
update: I can confirm they’re showing again on memmy.