Behind the Scenes of Social Media Apps: How Reels, Photos, and Drafts Are Stored and DeliveredEvery day, millions of people record Reels, upload photos, save drafts, and watch videos on social media platforms. To users, everything feels simple: tap record, add effects, save, upload, and share.May 30 · 8 min readhanand.hashnode.dev
Building Production-Grade React Native Apps: Architecture Lessons from Instagram, WhatsApp, Uber, and NetflixModern mobile applications are no longer simple collections of screens connected by navigation routes. Applications such as Instagram, WhatsApp, Uber, and Netflix serve millions of users while handlinMay 30 · 9 min readhanand.hashnode.dev
How Messaging Apps Work Offline: Designing Reliable Chat SystemsImagine you're on a flight with Airplane Mode enabled. You open your favorite messaging app, type: "Hey, I'll reach by 7 PM." You hit Send. Surprisingly, the message appears instantly in your chat wMay 30 · 7 min readhanand.hashnode.dev
Understanding React Virtual DOM: How React Updates the UI EfficientlyModern web applications update their interfaces constantly. Notifications appear, forms update while typing, messages arrive in real time, and dashboards refresh data every few seconds. If every smallMay 30 · 7 min readhanand.hashnode.dev
React Navigation vs Expo Router — Understanding Mobile Routing in React NativeMobile applications are no longer just collections of screens. Modern apps behave like complete ecosystems where users continuously move between dashboards, authentication flows, settings pages, notifMay 22 · 12 min readhanand.hashnode.dev
