For those who don’t know, a.gup.pe is an independent service that brings group behaviour (somewhat like communities here) to mastodon. It’s kinda nice and quite a few use it on mastodon.
Interestingly, it seems you can subscribe to one of their groups from lemmy!?
I just tried !blackmastodon@a.gup.pe and it seems to have worked and showed up in the community search! Not sure if posts are actually federating though, which would make sense as many might not know about this.
This might be a nice example of the two platforms being pretty compatible with each other??
And as a further FYI, !fediversenews@venera.social, which is a friendica group (works the same way as a gup.pe group) had a huge amount of content already showing in lemmy when I looked, which suggests it’s federating well
#threadiverse … Assemble!!