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How does the cross instance federation works? (lemmy.ml)

submitted 1 year ago* (last edited 1 year ago) by JonnyRobbie@lemmy.ml to c/lemmy_support@lemmy.ml

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I'm still trying to wrap my head around the whole federation thing. I got my account created on lemmy.ml, but I see that I can set the front page include posts from the whole federation, be it beehaw, etc.

Now I'm confused about actually posting stuff. For example, on the lemmy.ml frontpage sidebar, there's a rule 3, no porn. Is it instance-wide? Or is it just for /c/lemmy community? Can I create my own community with nsfw comment? And if not, can I use a federation to post a nsfw content to an instance that allows nsfw from my account on lemmy.ml?

There's a docs page here: https://join-lemmy.org/docs/en/users/01-getting-started.html, but I feel there needs to be more comprehensive and idiot-friendly ELI5 version of federartion and how is it actually impleemented, because its such a huge paradigm shift which most of people are not used to.

EDIT: Also, can I create communities cross-instance for example?

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[–] DivergentHarmonics@sopuli.xyz 2 points 1 year ago* (last edited 1 year ago)

For example, on the lemmy.ml frontpage sidebar, there's a rule 3, no porn. Is it instance-wide?

Rules placed on the front page of an instance are the instance-wide rules. So, no porn allowed on lemmy.ml.

Can I create my own community with nsfw comment?

Yes but on an instance that allows it. You'd have to make a separate user account there.

And if not, can I use a federation to post a nsfw content to an instance that allows nsfw from my account on lemmy.ml?

Yes. Unless the admins of an instance have reasons to block (not federate with) another instance, you can cross-post to any one that your instance federates with. It's even possible to an extent, to cross-post to other projects/networks. You'll have to follow the remote instance's guidelines, though.

[–] bdonvr@lemmy.rogers-net.com 2 points 1 year ago* (last edited 1 year ago)

You can only create a community on your own instance. But you could be a moderator of a community on a different one.

And anyone can make an instance for anything, even porn. There aren't any Fediverse wide rules. However, other instances can block you if they wish. They probably wouldn't have any reason to unless that instance's users were being a nuisance outside their own instance.

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