I know you can watch kbin posts. Very easily. Just treat it as if it were any other instance. Say there’s a community called water in kbin (there probably isn’t), you could access it by going to lemmy.ml/[email protected]

That’s it.

For mastodon, though, no idea. I’m too new. I do know that kbin can access mastodon stuff and it has a micro blogging mode. Haven’t seen any such thing on lemmy yet.

Yes, all the services share the same underlying protocol and share content.
If you go to your frontpage and switch from “local” to “all” you’ll see posts from many different sites and services.

You already posted this from sh.itjust.works to lemmy.ml, so you’re already doing it.

Regarding kbin, word is it’s really struggling under exodus and their Cloudflare DDOS protection might mess with federation.

That said, I’m able to read 2 magazines using Jerboa, maybe they’re the only ones federated so far with my instance? I haven’t figured out how to “discover” unfederated kbin instances. /kbin [email protected] and [email protected] They might show up if you type “kbin” into the community search bar in Jerboa if your instance knows about them.

Please correct me if any of this is wrong, I’m just throwing out my current understanding of the situation.