THE NEMESIS
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote
BugLens AI helps developers turn visual UI bug reports into tested code fixes. Developers upload a screenshot or video, or record their screen, describe the issue, and connect a GitHub repository. BugLens reproduces the problem in an isolated Modal sandbox. Meta models analyze reproduction frames, browser evidence, and relevant source code to identify a likely cause and propose a patch. After developer approval, seven verification gates check the fix before the application opens a GitHub pull request. Our hosted demonstration uses an intentionally broken checkout fixture and shows the complete workflow through a verified, unmerged PR. The current version is a single-developer demo with a React frontend and a separate Modal backend. Live application: https://frontend-jade-rho-52.vercel.app