Creating tokenized ecosystems is hard. How do we figure out what we want? How do we manifest that intent with block rewards and other crypto building blocks? How do we simulate and validate the design? How do we anticipate attacks and respond to them? How do we update the protocols? Given that these systems are wildly powerful, how can we better take responsibility for their design & deployment? Our mission is to see token ecosystem design become a new engineering discipline. This implies a body of theory, practice, tools and a sense of responsibility. We aim to do this collectively as a community in a decentralized, permissionless, open-source fashion that all can contribute to and all can use.