Oops, hi again all; I am just learning to administer a Lemmy instance and accidentally deleted all my posts. Not to worry though, feel free to re-introduce yourself here, and welcome to lemmy!
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Hello. I am moderating https://lemmy.ml/c/xmpp and am semi-active in the JoinJabber.org collective.
oh drat, doesnβt look like their federation support actually lets you subscribe to groups in other lemmy instances yet? Oh well, soon I hope!
It does, how else would I be subscribed here?
It is a bit hidden though. You need to cut and paste the URL into the search field.
But only this post - itβs not possible to follow the whole sub/community or even the whole instance? Because I can only see the community URL for posts, not for communities or whole servers / instances.
this one I can see, but itβs not the link with the fediverse-icon, like next to each post. I named it βcommunity urlβ, (so to get on it from a different instance), but yourβs is the normal urlβ¦
Good point, itβs not very intuative nor is federation simple to understand. The first thing I had to learn was that unless the community (group/subreddit) is originally created on the home server/instance (feddit.de in your case), itβs all copies of the original community from the originating instance.
So Iβm guessing youβre looking at
feddit.de/c/main@community.xmpp.net. Itβs Fedditβs copy of themaingroup fromcommunity.xmpp.net.To subscribe to a community not already βcopiedβ to Feddit, you have to tell them what URL to copy from. That would be
https://community.xmpp.net/c/main, which is where the circled link leads! πSo to subscribe to a community on a different instance, you can βCopy linkβ and paste it in Fedditβs search box. You will see the community show up in the search results, and thatβs basically Fedditβs new copy of the original community.
yea, I already got this, but in the end it is still a copy of it?
That was a good explanation with the βcopiesβ of yours - that explains why sometimes the original link and the fed.link from my instance (feddit in this case) was different and not 100% identically (sometimes posts were missing on mine - and I wondered).
So the only way, not to get a copy and 100% up to date βviewβ is to make an account on the local instance, I assume?
Yes. Although copies are somewhat supposed to be identical - Thatβs a big part of what federation is.
No, it gets updated pretty quickly. If you make a post to a βcopiedβ/federated community, itβs usually sent to the original (and distributed to other connected instances) before you can open a new tab and check the original community for yourself. Same thing when others make posts or comments, youβll see them almost immediately.
The problems start if thereβs comments from many different βcopiesβ, but your home instance doesnβt accept them. We end up with several copies, all of them missing some pieces compared to the original.
To make matters moreβ¦ interesting, the original community can remove comments yet they can still be reinstated in βcopiesβ around the fediverse.
ah ok. I understand. Thank you very much!!!
But is it necessary that one member of an instance at first needs to create the very first copy (at first) by doing how you explained before (searching on own instanceβ¦)? So if no one does, there will be no copy at all on my instance? Or is it done automatically by the system how federation works and what it is?
Yes. A user subscribed to every single external community in https://feddit.de/communities/listing_type/All/page/1 to bring it over to Feddit.de.
There is no automation when it comes to propagating a community, and this has the unfortunate side-effects that servers can create competing communities because theyβre unaware that it already exists or it was made by users who doesnβt know or care about federation.
How many tech communities can you find in the βList of popular Lemmy communities and their alternativesβ post weβve been posting in? π
It does. I am following this from my account on lemmy.ml
@sam
Testing: Trying to read and write from mastodon hereβ¦ Letβs see how far Iβll come.
At least I could find the βmainβ group from a mastodon clientβ¦
That seems to have worked; hopefully you get replies too :)
Hello again!
haha, Iβll like it again!
Welcome to the federation! o7
XMPP was federated before federation was cool π
removed by mod