Instead, it uses Fossil as a version control system. Some thoughts. Fossil is also developed by the same primary author as SQLite (D. Richard Hipp). Like SQLite, they share some similar design philosophies (at a very high level): All-in-one product – Fossil takes the main ideas of VCS and extends them by including bug tracking, wiki, alerting, chat, and a web interface. Whether or not that makes it more of an alternative to git or GitHub is another question.