For example in the screenshot (twitch clip), if you want to share on reddit you click the reddit button, but what button are devs supposed to put to share in the fediverse? Do they pick an instance of their choice?! Is this a weakness of a federated platform or what?
Probably uses the Lemmy API to detect which instance you’re logged into or you log in directly when prompted.
But the API is instance specific.
The only ways I see this working is one of:
But without some central registry there’s no way to know what is your home instance.