Matthew Slater builds and implements open source software for social & complementary currencies. As a full nomad, he knows first hand many people and projects in his field. In 2009 he co-founded with Tim Anderson the Swiss association Community Forge which freely hosts web sites for LETS and timebanks. He is also active in thinking and educating about money. In 2013 He co-created the ‘trading floor game’ with Sybille Saint Girons. In 2015 he co-authored the Money and Society MOOC with Professor Jem Bendell. In 2016 he co-authored the Credit Commons white paper with Tim Jenkin.