I Built PyVCS to Understand How Git Works Internally

📰 Medium · Python

Learn how Git works internally by building a simplified version of it, PyVCS, and understand key concepts like blobs, trees, commits, and the index

intermediate Published 23 Jun 2026
Action Steps
  1. Build a simplified version of Git, like PyVCS, to understand its internal workings
  2. Use PyVCS to experiment with Git concepts like blobs, trees, and commits
  3. Read the Git documentation to learn more about its internal architecture
  4. Implement a staging area (index) in PyVCS to understand how it works
  5. Test PyVCS with a remote server to see how data is sent and received
Who Needs to Know This

Developers and software engineers can benefit from understanding how Git works internally to improve their workflow and troubleshooting skills

Key Insight

💡 Understanding Git's internal architecture can improve your development workflow and troubleshooting skills

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🔍 Demystify Git's internal workings by building PyVCS! 💻

Key Takeaways

Learn how Git works internally by building a simplified version of it, PyVCS, and understand key concepts like blobs, trees, commits, and the index

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Title: I Built PyVCS to Understand How Git Works Internally

URL Source: https://medium.com/@muhammadabdullahkhaver/i-built-pyvcs-to-understand-how-git-works-internally-4eeafc00306f?source=rss------python-5

Published Time: 2026-06-23T21:50:43Z

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# I Built PyVCS to Understand How Git Works Internally

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## Why I Did It

Like many developers, I use Git every day. I know the commands by heart — `add`, `commit`, `push`, `log` – but I realised I had only a vague idea of what actually happens under the hood. What’s a blob? How does a tree differ from a commit? How does the index (staging area) work? And most mysteriously, how does `git push` actually send data to a remote server?

I wanted to demystify this. Instead of readin
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