@jford @christianselig Lemmy is the big one - think 'community" instead of "subreddit", but same idea. Cmtys are relayed amongst lemmy instances, but it'll show you if a community is "homed" by a particular instance.

Only difference is communities have a 'home" instance. for example there's an AskLemmy on lemmy.ml. I can see that on lemmy.ca as AskLemmy@lemmy.ml.

Supposedly there's a way to sub to communities from mastodon but haven't figured that out yet.