ELI5: Would it be possible for a "fediverse" app to exist?
ELI5: Would it be possible for a "fediverse" app to exist?
By this I mean: something that can view and fully interact with multiple different services like Lemmy, Mastodon, etc.
Does it exist already?
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As ActivityPub is just an underlying protocol, the question is similar to asking something like "Is it possible to make an Internet app for everything?".
There will be new ways to use the #fediverse in the future and new applications will be developed and adopted and it makes little sense in trying to provide every possible way to view the fediverse in an ever playing catch-up implementation of a view into it.
Try to look at it as the Internet itself.
It's an attempt at providing a finite and limited answer to an open ended question. Doesn't make a lot of sense.
The ActivityPub spec actually has a Server2Client part, which is where a regular "ActivityPub server" like lemmy or mastodon or anything like that could talk to an "activitypub client", which would be capable of interacting with any activitypub server and display it correctly.
AFAI, nobody bothered to implement it anywhere, but it is possible. It is also very much not like the internet as a whole, as activitypub represents user interactions in general, not anything ever.