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Kishan Agarwal

I build things that work end-to-end — devtools to full-stack apps. Obsessed with clean code, thoughtful interfaces, and software that is genuinely a pleasure to use and maintain.

Joined Joined on  Personal website https://kishanagarwal.dev
How WhatsApp Works Without Internet: Offline Messaging and Sync Explained

How WhatsApp Works Without Internet: Offline Messaging and Sync Explained

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8 min read

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React Navigation vs Expo Router: Which One Should You Actually Use?

React Navigation vs Expo Router: Which One Should You Actually Use?

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12 min read
Architecting Production React Native Apps: How Instagram, WhatsApp, and Uber Think About Scale

Architecting Production React Native Apps: How Instagram, WhatsApp, and Uber Think About Scale

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13 min read
React's Virtual DOM: How React Decides What (and What Not) to Redraw

React's Virtual DOM: How React Decides What (and What Not) to Redraw

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8 min read
Authentication Demystified: Every Login Method, Actually Explained

Authentication Demystified: Every Login Method, Actually Explained

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10 min read
The Journey of a Request: What Happens Before Your Code Even Runs?

The Journey of a Request: What Happens Before Your Code Even Runs?

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4 min read
The Invisible Middleman: Understanding Forward & Reverse Proxies

The Invisible Middleman: Understanding Forward & Reverse Proxies

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7 min read
How Instagram Stores Your Reels, Photos, and Drafts Without Losing a Frame

How Instagram Stores Your Reels, Photos, and Drafts Without Losing a Frame

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9 min read
Cuckoo Filters vs. Bloom Filters: Let’s Take it Easy

Cuckoo Filters vs. Bloom Filters: Let’s Take it Easy

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8 min read
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