Most interview prep for Node.js is either trivia ("what does `this` mean here?") or algorithm puzzles you’ll hardly ever use in production.

I put together a repo of real-world Node.js questions: things like handling backpressure in streams, building a mutex with async/await, per-user concurrency limits, graceful shutdowns, caching strategies, etc.

It’s meant both for interview prep and as self-practice for engineers who want to get better at solving actual system-level problems.

Contributions welcome if you’ve run into tricky Node.js challenges yourself.

Repo: https://github.com/freakynit/nodejs-beyond-leetcode