Blog

Building a robust email uniqueness check that scales to millions of signups. We'll explore Bloom filters, race conditions, email normalization, and why a simple database query isn't enough.

Ever wondered what actually happens when you hit 'Download' on YouTube? A full system design breakdown of how YouTube encrypts, stores, and serves offline videos on your device.

A practical walkthrough of a mini e-commerce architecture using Nginx, Node.js, PostgreSQL, Redis, RabbitMQ, and a worker service with Docker Compose.