Introduction to Decentralized Social Media tools

The Social Media space is characterized by a massive centralization of power where it can also be assumed that serious impact on the free and democratic society is being excerted. While on the one hand, state censorship cannot be the solution, alternatives can be used where the various parts of society can set up and run their own instances, be that in a peer-to-peer or federated context such that a group's social rules can be applied without any single point of control and always with the possibility to switch instance(s).