Explore the process of establishing and nurturing an open source community through the lens of Red Hat's Game Industry Community of Practice in this 21-minute conference talk. Learn about the concept of Communities of Practice and their significance in fostering collaboration and innovation. Discover strategies for internal marketing, collaboration, and external marketing to build a thriving ecosystem. Gain insights into how Red Hat leverages its products and ecosystem to support the gaming industry. Understand the unique challenges and opportunities within the gaming community and industry. Delve into specific examples, including the O3D Engine, and engage with questions that arise during the discussion. Presented by Ruth Suehle and Derek Reese from Red Hat, this talk offers valuable lessons for anyone interested in building and growing open source communities.