Discover the essential steps to building a thriving open source community through this insightful talk by Danese Cooper of the InnerSource Commons Foundation. Learn from her experience in launching and growing the InnerSource Commons project, which began at PayPal and evolved into a successful US 501(c)3 organization. Explore ten valuable lessons on fostering collaboration, scaling effectively, and embracing open source principles in internal engineering cultures. Gain practical insights on patience, measurement, preparation, strategic hiring, inclusivity, and ego management. Understand how to apply open source strategies to improve internal collaboration and pave the way for successful public open source initiatives.