I Didn’t Want to Give Full GitHub Access — So I Built My Own LeetCode-to-GitHub Sync Chrome Extension

I was practicing problems on LeetCode, and one day I thought: What if my GitHub could reflect this automatically? Not just as code, but as visible consistency. The contribution graph, the repository history — it would show that I was actively solving problems and improving over time. Anyone visiting my GitHub profile could see my LeetCode work without me manually uploading each solution. The idea was simple: accepted submissions on LeetCode should automatically appear in GitHub. The existing solutions didn’t feel right There are already Chrome extensions that do this. But when I looked into them, I noticed something that made me uncomfortable. Most of them required: Full read/write access to all my GitHub repositories Logging into my LeetCode account through the extension This felt like giving too much control to a third-party tool. Even if they were trustworthy, granting broad access when the extension only needed to write to a single repository didn’t feel right. So instead of using