Linus Lüssing, aka. T_X, has been working on getting decentral layer 2 community mesh networks, like Freifunk, multicast enabled and scalable: By adding features and bugfixes to projects like the B.A.T.M.A.N. Advanced mesh routing protocol, the Linux bridge and the Gluon mesh firmware framework. One of his next adventure is to get hackspaces and community networks interconnected via multicast, with tools like pim6sd, to leverage the true potential of multicast.