Many protocols can be used to a software work in Fediverse. Like Xmpp, Matrix, ActivityPub, etc. Fediverse it's interesting, because it involve the community to create their own spaces to interact with other spaces. It eases the migration from a platform to another for the user, if is well implemented of course, if the user does not like certain content or advertisement on their feed. The moderation will be more simple, because will be bigger as the instances' number grows.
Many protocols can be used to a software work in Fediverse. Like Xmpp, Matrix, ActivityPub, etc. Fediverse it's interesting, because it involve the community to create their own spaces to interact with other spaces. It eases the migration from a platform to another for the user, if is well implemented of course, if the user does not like certain content or advertisement on their feed. The moderation will be more simple, because will be bigger as the instances' number grows.
I give you one example of implementation of ActivityPub.