I recently wrote an extremely basic implementation of Git in Golang inspired by the CodeCrafters challenge. My goal was to gain a better understanding of how Git (and systems like it with custom protocols) works internally. While this project has no practical value (why would anyone want to write their own Git for any reason other than learning?), understanding Git’s internals can be valuable for:

• Debugging complex Git issues
• Understanding how version control systems work at a fundamental level
• Learning about distributed systems and data structures
• Appreciating the engineering decisions behind Git’s design

My implementation supports just enough commands to allow for initializing/cloning repositories, making commits, pushing and pulling, and creating/checking out branches.