The key insight: success comes from recognizing repeated patterns rather than memorizing countless problems.

**Vía: https://x.com/_adityaa21/status/2005115654849135045**

— Backend expectations —

Backend Fundamentals

1. How the Server Works (Request–Response Cycle)
2. REST API Design Principles
3. HTTP Methods & Status Codes
4. Middleware & Request Flow
5. Authentication vs Authorization

Node.js & Backend Runtime:

1. Event Loop & Non-Blocking I/O
2. Async/Await & Promises
3. Error Handling & Global Error Middleware
4. Environment Variables & Config Management
5. Logging & Debugging