This document discusses how the open source project Joind.In uses GitHub to manage its codebase and development. It summarizes key aspects of GitHub like version control, code repositories, wikis, pull requests, and issue tracking. The document outlines how Joind.In utilizes GitHub features for its wiki, source code hosted in a main repository with forks, and issue tracking on JIRA instead of GitHub. It also discusses how the project uses mailing lists, IRC, and transparency to engage its community.