Git stores project history locally as objects and references (like branches). When you use 'git push', and your git remote is with GitLab, it sends these updates to a remote GitLab server. How you connect (SSH or HTTP(S)) determines the authentication method: SSH uses GitLab Shell for key-based verification, while HTTP(S) relies on Workhorse and Rails for authentication. Once authenticated, Gitaly takes over, managing your Git repository and executing 'git-receive-pack' to handle the incoming changes. Gitaly is used by GitLab to read and write Git data.

Floro is a visual version control system for managing static assets and i18n strings.

Git’s error messages can be confusing to understand, but there are some great strategies to help decode them. Git status clarifies the current branch state, and git log helps examine commits and identify divergence points. You can also customize your shell prompt to display branch status, which can be helpful.

Jujutsu is a new version control system that is on track to replace Google's existing version control systems. It has an interesting approach to its design choices in terms of both implementation details and user interface. Jujutsu can be used with existing Git repositories. This article introduces the system and walks readers through how to use it.