I got inspired by setting up my own Mastodon instance and getting into this whole decentralised federated model to try out Matrix (matrix.org, @matrix). So, after some fiddling I managed to have a Matrix server running using Synapse. You can now IM me through @clemens:matrix.multiverset.net or come in and say hi in the public lobby of my server: #lobby:matrix.multiverset.net 😎