Pleroma

Pleroma is an extendable ActivityPub communication server. Pleroma can be as light-weight as you want it to be, fit for both running from a homeserver or from more serious infrastructure. Pleroma embraces customization. Instead of trying to dictate how users should use our software, we give them options. From the backend to the frontend, there are hundreds of configurable options to satify the different needs of everyone. We know there's no single setup that works for everyone, and are more than willing to listen to users' feedback. Being part of fediverse of course means interacting with other servers and Pleroma provides the best experience when displaying other types of content, even non-microblogging.

The Fediverse nowadays is a very big place with a lot of different people, who don't necessarily agree with each other or have good intentions. To help with the insurmountable task to moderate the stream of incoming and outgoing content, Pleroma has Message Rewrite Facility, allowing instance administrators to automatically act upon activities including modifying them and deciding whether to show them in federated timeline or not. Having more detailed and partially automated moderation helps create a network where users don't have to worry about not being able to talk to someone else because the admins didn't have the rights tools at their disposals.