Explore best practices for creating inclusive and diverse open source communities through a comprehensive examination of community handbooks. Learn about key attributes of effective handbooks, drawing insights from the Chaos and GitLab community examples. Discover the importance of a "GitLab First" culture, community handbook standards, and processes for maintaining and updating guidelines. Delve into essential topics to cover, writing style recommendations, and methods for handling updates. Gain access to valuable resources and a QR code for further information in this informative 26-minute talk presented by Jaskirat Singh from CHAOSS / The Linux Foundation and Nuritzi Sanchez from GitLab Inc.