@intekhab

How Instagram Stores Reels, Photos, and Drafts Behind the Scenes

4d ago · 5 min read · Let's Imagine you record a 30-second Reel. You added --> Music, Filters, Text, Stickers, etc But you are not ready to post it yet, so you click "Save Draft". You close the app and reopen it later. You

How WhatsApp Works Without Internet: Offline Messaging and Sync Explained

4d ago · 4 min read · Imagine you are in a out area and there has no network and you send a message: "Hello, are you free today?" Even though there is no internet, the message immediately appears in your chat screen. Why?

MIMd Intekhab Alamlinux-hunting.hashnode.dev

Linux File System Hunting

4d ago · 6 min read · Understanding the Linux Architecture: From Blocks to Active Connections The Linux operating system often feels like a black box. Many developers and system administrators know basic commands, but they

Expo Router vs React Navigation - Which One Should You Use in 2026?

May 22 · 4 min read · Building navigation is one of the most important parts of a mobile application. Whether it is Instagram, Uber, or WhatsApp, users constantly move between screens. That is why routing and navigation ar

How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router

May 22 · 4 min read · How Modern Large-Scale Mobile Apps Are Structured Modern apps like Instagram are much bigger than simple mobile applications. They handle: millions of users realtime updates media uploads notifica