Phabricator <i>is</i> a very good tool! But calling it a substitute for GitHub seems a bit off. GitHub (and GitLab) revolve around repositories. As the name implies they are focused on git and git workflows. As a user you are using `git` most of the time when interacting with the systems.<p>Phabricator on the other can supports `git`, but that&#x27;s just one of the supported storage systems for phabricator. As a user you are using `arc`, phabricators command line tool.<p>I&#x27;ve seen <i>many</i> people having issues with using `arc`, having used, say github, prior to that. This got better recently when the `arc land` workflow was improved.