Where RAG Fails: Understanding the Limitations of Retrieval-Augmented GenerationIf you've built anything with large language models in the last two years, you've almost certainly run into RAG — Retrieval-Augmented Generation. It's become the default answer to "how do I make my LLJul 19, 2026·10 min read
Async Code in Node.js: Callbacks and PromisesYou ask a friend to grab coffee while you keep working on your laptop. You don't freeze mid-sentence waiting for them to come back — you just keep typing, and when they return, you grab the cup. That'Jun 30, 2026·8 min read
Expo Router vs React Navigation - Which One Should You Use in 2026?Every React Native developer eventually hits the same wall: the app has grown past a handful of screens, the navigation file is 300 lines long, and nobody on the team is quite sure which navigator ownJun 30, 2026·14 min read
How Instagram Stores Reels, Photos, and Drafts Behind the ScenesYou tap Record. You nail the take. You hit "Save as Draft." You close the app, reopen it ten minutes later — and the Reel is right there, exactly where you left it. What just happened under the hood? May 31, 2026·15 min read
How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo RouterA deep dive into production-grade mobile architecture with React Native — from folder structure to realtime systems, offline support, and scalability thinking. Why Simple Folder Structures Fail at ScMay 21, 2026·25 min read
How React's Virtual DOM Works Under the Hood 🔬"The real DOM is expensive. The Virtual DOM is React's secret weapon." If you've ever asked yourself why React feels so snappy, or wondered what actually happens between calling setState() and seeingMay 21, 2026·9 min read
Destructuring in JavaScript: Write Cleaner, Faster, Smarter CodeJavaScript has evolved significantly, and one of the most elegant additions to modern JavaScript (ES6+) is destructuring. If you've ever written repetitive code to extract values from arrays or objectMay 9, 2026·4 min read
