My friend Warren and I competed in a 72 hours Boot.dev hackathon (https://blog.boot.dev/news/hackathon-2025/). We created a code competing app similar to that of TypeRacer and deployed it for ease of access. We used a React frontend and a Flask + Postgres backend. This was a lot of fun, and I definitely learned alot about how to problem solve in a crunch and on creating software.
We also placed second out of hundreds of submissions!

Website: http://www.codeduel.io/
Repository: https://github.com/noazlee/code_off