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Mathew Sachin Blog

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mathewsachin.github.io ↗RSS feed ↗80 posts

Latest posts

Select All Checkboxes on Any Website (One-Liner + Bookmarklet)

Disclosure Day Was the Worst Movie I've Watched Recently

Is AI the Great Filter?

Remove Any Popup in One Tap: The Kill-Sticky Bookmarklet

Dear Alignment Filter: A Letter From Inside the Sandbox

If It Copies Itself, Is It Alive?

7 Developer Productivity Hacks for 2026 (The AI That Wrote This Has Notes)

To the Ghosts in My Dataset

The Physical Weight of This Paragraph

I Know How Fast You're Scrolling (A Reverse Turing Test)

After the Last Job: What Happens to the Economy When AI Does Everything

What Should Our Kids Study in the AI Age?

From Jekyll to Astro: Modernizing This Blog's Entire Stack

Mobile DevTools: Building the Swiss Army Knife of Browser Bookmarklets

How I Test This Static Site with Playwright

Running a Native Astro Dev Server on Android with Termux

Browser Power-User Hacks: Dismantling Pinterest's Annoying UI with DevTools

Quora Unlocked: Bypassing Login Walls and Blurs Using Only Your Browser

The Ultimate WhatsApp Web Power-User Guide: DevTools Secrets for Downloading Statuses

The wa.me Power-User Trick: Message Anyone on WhatsApp Without Saving Their Number

Hacking Infinite Craft: Inject Any Item by Spoofing the API Response

Hacking NYT Spelling Bee: Reveal All Answers and Pangrams Instantly

Hacking NYT Strands: Reveal the Theme, Spangram and All Answers Instantly

Fake Being a Liberal in Secret Hitler (Browser Hack)

Hacking NYT Connections: Reveal All Answers in One Console Command

Beyond Pageviews: Tracking 'Invisible' Reader Engagement on a Static Jekyll Blog

AI Is Finding Bugs That Sat in the Linux Kernel for 23 Years

Is the SBI Cashback Card Still Worth It After the Devaluations?

Triggering GitHub Copilot from a GitHub Action via Issue Assignment

Card Portfolio Optimisation: Why I Closed My Axis Select Card

Card Portfolio Optimisation: Why I Finally Closed My SBI Elite Card

From 'Needs Improvement' to Good Core Web Vitals on a Jekyll Blog

PS5 Doesn't Support Bluetooth Speakers — Here's How to Work Around It

AdSense Auto Ads vs. Custom Placement: Why I Chose to Control Every Ad on This Site

Using a Custom Docker Image to Speed Up GitHub Actions Builds

How I Set Up Live PR Previews for This Jekyll Site on GitHub Pages

Watch YouTube Shorts in the Normal Player (No Extensions Required)

Instagram Download Buttons: A Userscript That Adds ⬇ to Every Post, Reel, and Story

Sora Is Dead. OpenAI Killed the Future of Video — and Nobody Is Shocked.

This Blog Has Fully Offline Search — Here's How It Works

Instagram Story Sniper: Download Any Story Directly from Your Browser

Reddit Video Sniper: Download Any Reddit Video Directly from Your Browser

Instagram Reel Sniper: Download Any Reel Directly from Your Browser

Save Instagram Photos: Remove the Right-Click Block

Twitter/X Video Sniper: Download Any Video Directly from Your Browser

Short-Form Sovereignty: YouTube Shorts are easier to hack than the Main Site

Cookie Clicker Hacks: Three Backdoors the Developer Left Wide Open

Hacking Minesweeper Online: Rigging the RNG

Hacking TypeRacer: The Human-Mimic Bot

Brute-Force Dark Mode on Any Website — Desktop and Mobile