Explore the legal intricacies of open source software in this comprehensive conference talk. Delve into the core principles of open source development and consumption, examining the rights and limitations for professional use, modification, and redistribution. Compare popular open source licenses, learning how to make informed decisions for leveraging external open source projects and properly licensing your own work. Gain valuable insights into key considerations such as attribution, non-endorsement, advertising, patent licensing, derivative works, version compatibility, and potential GPL risks. Understand the importance of contributor license agreements and develop a long-term strategy for open source integration in your organization.