How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo RouterMay 23, 2026·20 min read
How Messaging Apps Work Offline: Designing Reliable Chat SystemsMost people expect messaging apps to work instantly. Whether it's sending a text, sharing a photo, or reacting to a message, users rarely think about what happens behind the scenes. But what happens wMay 30, 2026·8 min read
Kafka explained : The easy wayWell, this is always a hefty topic to understand—but the core idea behind it isn’t that complex. In fact, once you strip away the jargon, it’s surprisingly intuitive. Kafka acts as a broker for messagApr 28, 2026·5 min read·4
The Node.js Event Loop ExplainedIntroduction JavaScript was originally designed to run inside browsers, handling user interactions like clicks and form submissions. When Node.js brought JavaScript to the server, it introduced a chalApr 25, 2026·5 min read·3
Blocking vs Non-Blocking Code in Node.jsWhen building backend systems, one of the most important concepts to understand is how your server handles tasks. In Node.js, this comes down to blocking vs non-blocking code — a core reason why Node.Apr 25, 2026·4 min read
REST API Design Made Simple with Express.jsBuilding APIs is a core skill for any backend or full-stack developer. If you're working with Node.js, understanding how to design clean and scalable REST APIs using Express.js is essential. This guidApr 25, 2026·4 min read
Why Node.js is Perfect for Building Fast Web ApplicationsWhen developers talk about speed in web applications, they’re not just referring to raw execution time—they mean how efficiently a system can handle multiple users, process requests, and respond withoApr 25, 2026·5 min read·6
What is Middleware in Express and How It WorksIntroduction When building backend applications using Express.js, one of the most important concepts you’ll encounter is middleware. Middleware is what gives Express its flexibility and power. At a hiApr 25, 2026·4 min read·1