Explore strategies for leveraging GitHub in large corporate environments to foster sustainable open source contributions. Dive into the evolution from a "Wild West" approach to structured GitHub Organizations, examining Cisco's DevNet and main GitHub Orgs as case studies. Learn about public vs. private repositories, appropriate content for corporate GitHub Orgs, and the importance of archives. Understand membership roles, permissions, and the process of contributing to DevNet. Delve into corporate licensing challenges, including Cisco's Sample Code License and open source licensing considerations. Discover how to contribute new repositories, use repo templates, transfer existing repos, and manage long-lived forks. Gain insights on integrating with Cisco's Code Exchange and explore next steps for implementing these practices in your organization.