Rick Casey shares what he's learned building, managing, funding an open source project over 8 million users.\n\nThe app is Destiny Item Manager \u2014\xa0a companion to Bungie's wildly popular looter-shooter Destiny.\n\nIf you play Destiny, you've surely used this or scene it on stream.\nBut even if you're not a gamer you'll learn a lot about what it takes to manage and succeed with open source at this scale.