The Rebus Community launched in November 2016 with the goal of building a new, collaborative model of open textbook publishing. To better understand what open textbook publishing entails, we provided hands-on support for 15 open textbook projects. In so doing, we learned what was involved in the process of making an open textbook. This feedback fed into the creation of software and resources to help make publishing easier for global textbook creators. As the next step, we’re launching this platform and sharing it with open textbook and OER creators. In this session, we’ll talk about where we’ve been, where we’re going, what we’ve learned, and how you can participate!