Write a React hook

Write a custom React hook for debounced search with TypeScript, including proper cleanup and generic typing.

Build an API route

Create a Next.js API route with input validation using Zod, error handling, and rate limiting middleware.

Debug an issue

Help me debug a React component that re-renders excessively. I have a list that flickers when typing in an input field above it.

Design architecture

Design a microservices architecture for a real-time chat application with WebSocket support, message persistence, and presence detection.