Introducing DevPub - Open Source Dev.to CLI Tool
Recently I went looking for a CLI tool to manage my Dev.to articles from the terminal. I write 4-5 articles per month, track analytics obsessively, an…
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How to Evaluate an AI Video Generator Without Wasting Credits: A Repeatable Test Harness
Most AI video demos show the same thing: A polished final clip A prompt A claim that the result was generated in seconds What they usually do not show…
Why I built a zero-upload, local-first browser video compressor (and why you should stop uploading your MP4s to remote servers)
As content creators, video editors, and developers, we compress files almost every single day. Whether you're exporting a 4K draft for a client, tryin…
1,756 hand drawn icons, and nobody drew them
For a while my routine on side projects was this: find one sketchy icon somewhere, download the SVG, rename it, drop it in assets , then fix its strok…
Termux App Store: A Community Package Manager for Termux on Android
If you use Termux on Android, you probably know the feeling: You find a useful command-line tool on GitHub, but then you have to figure out how to ins…
I built a free emoji mixer that runs entirely in your browser
I kept seeing those "smash two emojis together" sites and noticed something: most of them upload your image to a server. Even when the math is just st…
The one seam, shown: Inline up close
In post 10 I closed the composition-versus-coherence question with one paragraph: I kept strict object-scoping, reserved an Inline operator for later,…
I built an AI observability platform with $0 – zero dependencies, zero ops, stateless
I’ve been building Cognilumin on and off for the past few months, mostly late nights and weekends. It’s a stateless AI observability platform—three to…
Flux 3 AI: Building a Resilient Multi-Model Video Workbench
AI video products look simple from the outside: a prompt box, a Generate button, and a result. The implementation becomes much more complicated as soo…
I Built Full Team Management Into My Agency SaaS. Here's the Complete Feature Spec.
I've been building Melororium ( https://melororium.com ) — a flat-fee workspace for agencies — for about eight months. The Team section turned out to …
Agentic Ledger: an open source flight recorder for AI agents (looking for testers and contributors)
I have been building an open source tool called Agentic Ledger and it just reached the point where I need more eyes on it than my own. This post is an…
Building a browser game with client-side Groth16 proofs
A smart contract can't tell whether a submitted score came from a valid game or was simply made up. Dario Dash handles that by proving the run itself.…
PhilBuilder vs voltbuilder
The problem Every time I needed to hand someone a quick installable build — a client, a tester, myself on a different machine — I had to either keep a…
Why I built Sanctuary: A local-first, zero-tracking reflection app
Most journaling and mental wellness apps require syncing sensitive personal thoughts to cloud servers where they risk being mined or exposed. I wanted…
How I Built a Peptide Dosage Calculator with Next.js — and Why SSR Matters More Than You Think
A researcher spends 30 seconds doing peptide math before every injection. I built a tool that does it instantly. Here's the surprising thing I learned…
Built a Custom Virtual Machine From Scratch in Rust
A few weeks ago I started working on XVM - a custom virtual machine built entirely from scratch in Rust. Not an emulator of any real processor (not x8…
I Built a Chrome Extension to Replace Notion's Broken Web Clipper
Notion's official Web Clipper has a 3.4★ rating on the Chrome Web Store. The reviews tell the same story for years: "go online to save" errors while o…
I built a tool to prove my multi-agent harness was worth it. It told me it wasn't.
I spend most of my time on agentic systems, and I had absorbed the same idea everyone else has: a planner improves things, and a panel of drafters wit…
We instrumented an AI agent swarm with SigNoz, and its own telemetry told us we were wrong about almost everything
Built for the WeMakeDevs Agents of SigNoz hackathon, July 2026. Mission Control. The graph is the swarm, the river underneath it is the live span stre…
Why I built Sanctuary: A local-first, zero-tracking reflection app
Most journaling and mental wellness apps require syncing sensitive personal thoughts to cloud servers where they risk being mined or exposed. I wanted…
I Built a 3D Game in Flutter — With No Game Engine
Everyone says the same thing: Flutter is for apps, not games. So I decided to find out where that's actually true — by building a 3D endless runner in…
Building a Real-Time AI Voice Agent That Handles 70+ Languages
The problem we started with Most small businesses still handle phone calls the old way: a human answers, or a menu tree routes the caller to a departm…
How Sentry Keeps PromptDev Running Smoothly in Production
Building PromptDev ( https://promptdev.site ), a sandbox for developers to construct, stack, and benchmark system instructions, requires a solid error…
Show DEV: NotchTune v1.2 - a Tiny Notch App to Control Spotify Web
Hey DEV community! 👋 A few days ago I shared NotchTune here — a tiny native macOS app that turns your MacBook's notch into a live Spotify Web controll…
I shipped three AI tools that run entirely in the browser — here's everything that broke
I set myself one rule for a side project: every tool has to run entirely in the user's browser. No file ever gets uploaded to a server. If I couldn't …
I built an eval harness to prove an LLM worked. It proved the opposite.
I set out to have a language model classify integration failures. I built an evaluation harness to prove it worked. The harness proved it wasn't worth…
Building NovaOS: A 16-bit Operating System from Scratch (in Assembly and C)
Building NovaOS: A 16-bit Operating System from Scratch (in Assembly and C) Introduction Hi everyone! I'm Daniel, an 11-year-old developer from Iran. …
MedSpeak
When I first built MedSpeak , you had to type the shorthand in by hand. That's fine for a demo, but the whole point of a label is that it's already wr…
I built a serverless URL shortener for $4.68/year (total)
I wanted two things: short links under my own brand (every link I share points traffic back to my site ), and a real excuse to run a complete system o…
How Reading a Design Patterns Book Led Me to Audit My Rust Framework with UML and Merise
I was reading a design patterns book. I got to the UML class diagrams — and I stopped. Because the diagram on the page was describing something Rust a…