sujalgawas/DevLegacy ? reverse-engineered prompt

Build me a web app called DevLegacy that lets someone paste a GitHub username and then gives them a detailed developer score based on their profile. I want it to look at things like commit consistency, open source activity, README quality, comments, file structure, and overall code quality, then turn all of that into a clear legacy score with simple explanations a normal person can understand.

It should also suggest what kind of developer role fits them best based on the tech they use, and show the results in a polished, modern interface with a bit of 3D flair. Please make it feel interactive and impressive, not like a basic dashboard. Use a Python backend and a React frontend, and make it easy to run locally with Docker. If you need to check current docs for any library or API details, go ahead and look them up online.