This way of developing the #fediverse where each server only receive one kind of the objects accepted by #ActivityPub makes it more fragmented it, right? A server should send and receive all kinds of objects and should be up to the client to how to processes those objects.

If an user wants an Instagram-like app just create an account on any service and use and app with that UI, of lager they wanted to see more kinds of objects they should just use another client that supports Note, Article, etc. with the same account on the same server.

Ideally all server should have a shared API.

This fixes #fragmentation, the need to have multiple accounts if you are into multiple kinds of objects/content.

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[–] freamon 1 points 2 weeks ago

Hmmm. Speaking of Fediverse interoperability, platforms other than yours (Pandacap) typically arrange things so that https://pandacap.azurewebsites.net was the domain, and something like https://pandacap.azurewebsites.net/users/lizard-socks was the user, but Pandacap wants to use https://pandacap.azurewebsites.net for both. Combined with the fact that it doesn't seem to support /.well-known/nodeinfo means that no other platform knows what software it's running.

When your actor sends something out, it uses the id https://pandacap.azurewebsites.net/, but when something tries to look that up, it returns a "Person" with a subtly different id of https://pandacap.azurewebsites.net (no trailing slash). So there's the potential to create the following:

https://pandacap.azurewebsites.net/ sends something out.
Instance hasn't heard of that, so looks it up, and creates a new user in its database, with the returned ID (https://pandacap.azurewebsites.net)
https://pandacap.azurewebsites.net/ sends else something out. Instance looks in it's DB, finds nothing, so looks it up and tries to create it again. The best case is that it meets a DB uniqueness constraint, because the ID it gets back from that lookup does actually exist (so it can use that, but it was a long way around to find it). The worst case - when there's no DB uniqueness constraint -is that a 'new' user is created every time.
Repeat step 3 for every new thing you send.

If every new platform treats the Fediverse as a wheel that needs to be re-invented, then the whole project is doomed.