A system-design deep dive into real-time location tracking in apps like Zomato—from driver GPS capture and pub/sub to WebSockets, interpolation, reliability, and privacy.
Read Full ArticleA deep technical breakdown of DRM, secure video pipelines, OS-level hooks, and hardware protections that prevent Netflix screen capture.
Read Full Article →Microservices promised speed and scalability, but for many teams they increased complexity, latency, and cost. Here's why modular monoliths are making a comeback.
Read Full Article →Ever wondered what really happens under the hood when you send a message in a large WhatsApp group? This post breaks down how modern chat systems avoid database overload and scale to billions of messages.
Read Full Article →A deep but simple explanation of how Google and Microsoft Authenticator generate time-based one-time passwords (TOTP) every 30 seconds without internet access.
Read Full Article →A system design deep dive into how Instagram checks username availability instantly at massive scale using caching, normalization, and database constraints.
Read Full Article →