Understanding the Difference Between _, __, and . in Django ORM: When to Use user_id, user.id, or user__id?

A clear guide to the often‑confusing `_`, `__`, and `.` symbols in Django ORM. It explains the real‑world meaning of `u…

Why Is Cloudflare Free? Understanding CDN Mechanics and the Business Model

Explore why Cloudflare offers free CDN and security services, the underlying business model, and how the free plan bene…

What is HTTP/1.1 and HTTP/2? When should we use which?

This post summarizes the differences between HTTP/1.1 and HTTP/2, their scenario of use, and provides a guide on key co…

The Shift from CPU to GPU - Why Does AI Love 'Matrices'?

This post discusses the reasons behind the shift from CPU to GPU for AI models and presents performance improvement cas…

Redis AOF - When It's Okay to Turn It Off for Performance

This post explains situations where disabling Redis AOF (Append Only File) does not significantly affect performance, c…

Essential Knowledge for SPA and React - A Complete Guide to Browser Storage

A comprehensive guide on utilizing browser storage (session storage, local storage, IndexedDB, etc.) for SPA and React …