The latest articles on DEV Community by Boran Tunç (@yemxpc). https://dev.to/yemxpc https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4084907%2F52368f4e-35e1-4242-b4c1-615580928736.jpg https://dev.to/yemxpc en Boran Tunç Wed, 19 Aug 2026 11:05:50 +0000 https://dev.to/yemxpc/why-i-built-a-lightweight-473-kb-username-checker-in-c17-4cig https://dev.to/yemxpc/why-i-built-a-lightweight-473-kb-username-checker-in-c17-4cig <p>I wanted a fast, lightweight way to check usernames across multiple platforms without the bloat of heavy runtime dependencies. So, I built <strong>JustUser</strong>.</p> <p>It's a native C++17 command-line tool that uses <code>libcurl</code> to query 45+ platforms efficiently. The compiled binary is under <strong>500 KB</strong> (~473 KB) and runs entirely out of the box.</p> <p><strong>Zero runtime dependencies</strong><br> <strong>Easy to extend</strong> via a simple <code>sites.json</code> configuration file</p> <p>You can check out the source code and pre-compiled binaries on GitHub:<br> <a href="https://github.com/yemxpc/JustUser" rel="noopener noreferrer">https://github.com/yemxpc/JustUser</a></p> <p>Feedback, contributions, or ideas are always welcome!</p> cli cpp opensource programming