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How I Built an Actual-Size Screen Ruler with Hardware Calibration Using Astro

Most on-screen measurement tools rely purely on standard CSS pixels (96 DPI), which often leads to inaccurate physical readings across modern high-density laptop and mobile displays. To solve this, I

1 min readaionlineruler.hashnode.dev

OkudumNov 3

Okudum: A free book-sharing app for Turkish readers (Android)

Hi! I'm the developer behind Okudum (developer name Dronopter), a free Android app I built for Turkish readers. The idea is simple: most of us have shelves full of books we've already finished. Okudum

1 min readokudumapp.hashnode.dev

Rajendra SahuOct 21

How I Built an In-Browser Passport Photo Studio with Next.js and MediaPipe

Building a privacy-first tool to format, check, and print biometric document photos directly on the client side.

4 min readpassportphotobox.hashnode.dev

Michael HairetisOct 21

The most useful number my system produces is one I never set out to build

Built to pick the next question, the per-subject estimate turned out to be the useful output. Notes on graders, parent reporting and what a number hides.

2 min readopenred.hashnode.dev

SpeakercleaningtoolOct 17

How We Built an In-Browser Acoustic Resonance Engine to Clear Wet Phone Speakers

Discover how we built an in-browser acoustic resonance engine using the Web Audio API to eject water from wet phone speakers without native apps.

6 min readspeakercleaningtool.hashnode.dev

AndriiSep 6

How Big Is a Billion? I Built the Whole Road to Find Out.

How I built a drivable road of $100 bills in Three.js, rendering millions of notes with a treadmill trick, SI units, and SSR fallback for crawlers.

8 min readrealworth.hashnode.dev

ɐ ℒℯℯAug 4

How I Built ToolHub: A 138-Tool Static PWA That Stays Sub-Second

A technical deep dive into building ToolHub—a fast, privacy-first, client-side suite of 138+ web utilities using Next.js static export.

2 min readaxtric.hashnode.dev

WuXinJul 30

Why We Built an Ad-Free, 100% Client-Side Developer Toolkit as CS Students

Discover how Team Perception built SnipToolkit: 100% client-side, ad-free suite of web developer utilities using Astro and Cloudflare edge deployment

3 min readsniptoolkit.hashnode.dev

kandarp gautamJul 21

🐇 RabbitMQTest — A Simple RabbitMQ Demo in C#

The RabbitMQTest repository by Kandarp Gautam is a C# project that demonstrates how to use RabbitMQ for message queuing. It shows the basics of a producer sending messages and a consumer receiving the

2 min readkandy.hashnode.dev