I kinda wish the fediverse had started with an account system which could then be integrated with various servers. It would concentrate on just keeping account configs where new services had new tab areas or such. Then you could have the services instances that would authtenticate and use the login configs for view and such. of course many instances would do multiple things but it would be so great to go to mastadon and have it interact with the same fediverse account as what I would use at lemming or peertube.