And it also seems that mastodon can also be “syndicated” to these other communities, and vice versa? Is that true?
Are there limitations to any of this?
Apologies if this is not the perfect place to ask this question. I’m a lost old man. :-)
All fediverse software (lemmy, kin, mastodon, etc) implements their own version of ActivityPub in slightly different ways. There are cases where the overlap is enough to cross over (lemmy communities and kbin magazines), and some where it doesn’t work/is wonky (lemmy users can’t follow mastodon users).
There’s a more in depth write up here if you’re curious: https://overengineer.dev/blog/2019/01/13/activitypub-final-thoughts-one-year-later.html
I’m answering your post from kbin, you can see Lemmy instances and communities from Kbin!
Yes, that is one of the features of being federated. Kbin and Lemmy and Mastadon (and others) can all federate with each other, so posts and comments are all shared. It doesn’t really matter if you’re on Kbin or Lemmy, you can see the same communities/magazines and comments for the most part, and interact regardless of which one you are currently logged in to.
Well, my understanding is that email is federated, and SMS text messages are federated, but it isn’t easy to email a phone number, or send a text to someone’s email. So I’m surprised that Kbin and Lemmy can talk to each other.
But I see someone else answered that Lemmy, Kbin, and Mastodon all speak the same underlying protocol, ActivityPub. Now it’s starting to make sense.
but it isn’t easy to email a phone number,
Mildly off topic, and showing my age a bit on this one but it 100% is easy, as long as the telco in question supports it.
I used to be with Koodo up here in Canada (albeit this was years ago) and the ability to send/receive emails via your phone number was trivial. Literally could email 5555555555[AT]msg.koodomobile.com and it would be received, and when you reply the other side gets the email reply.
Whether companies still do this on the other hand, is the question (that no one asked lol).
This is how I got ringtones I made onto my phone. I’d just attach the .wav file to my email and it would show up as an MMS.
It’s still a thing. At least with Gmail accounts:
And you need to use the google messaging app on your phone. It probably bypasses texting and goes straight to the internet.
Lemmy, kbin, and Mastodon all speak the same underlying protocol – ActivityPub. I’ve found that the best way to think of it is to compare it to email. If I send you an email from my gmail account to your outlook account, it just works (well, mostly, email is a bit of a mess lol) even though the two email clients look vastly different from each other. ActivityPub (and federated protocols in general) are like email, but for twitter/reddit.
There are some different message types (it wouldn’t make sense to present twitter-like content in the context of a threaded forum like Reddit), and not all instance types support all the different message types. I’m using kbin (via kbin.social) and I can see Mastodon content, but I’m not sure if Lemmy has that ability.
Not sure if that was helpful, and I hope that others come and fact check me, but that’s my understanding of it.
Then wait until you find that you can follow Lemmy/kbin communities from Mastodon and comment on Lemmy/kbin posts from your Mastodon account 🤭
