To my understanding: -There are Lemmy instances -Instances communicate with each other to create the "Lemmyverse" -There a larger version of this that encapsulates all (or a lot of) services that use ActivityPub called the "Fediverse"

My question is how or if would I interact with said other services from Lemmy? Is that possible? Could I say, see Mastodon or Peertube content from Lemmy? If I can, how? Do I sign up to those sevices with my existing Lemmy account? Can or will I soon be able to interact with everything through one account? Because that seems to me like it should be possible assuming everything and everyone is federated.

How is Lemmy interconnected with the Fediverse right now, and how might it become further connected in the future?

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[–] [email protected] 6 points 1 year ago

You really need to just test on a piecemeal basis. It's a matter of what works with what, and sometimes even the devs don't know.

What I've found so far:

Lemmy uniquely grabs old posts from Lemmy, but most software is "here and now" so you won't see a history if you go somewhere until your instance is following it.

Mastodon can see Lemmy communities and users and you can DM people on mastodon from lemmy, but you can't follow Mastodon users on Lemmy because the paradigm is different.

Lotide communities can be followed and interacted with. I think the latest Lemmy has fixed federation in the other direction.

Friendica groups can be followed and interacted with. Users are the same as mastodon users

Peertube channels can be followed like communities and you can see, upvote, and comment on videos, but you can't post anything new -- your instance will let you, but it won't federate.

Kbin communities can be followed, be aware that kbin is in its early days so it has a lot of work on the back-end.

I was not able to federate with a.gru.ppe communities.

Hopefully this helps, and maybe others can post their discoveries. Decentralization is strength on the fediverse. The more things we can connect to, the less reliant we are on any one thing.

To do a lot of these, you put the community, magazine, or channel url into Lemmy search. It takes longer than you expect but if it's federating at all it'll show up on the search, then you can go and subscribe.