TypeScript Coffee

i built a social platform where everything vanishes after 24 hours

genjutsu is a fast-paced, developer-focused social network where everything vanishes every 24 hours.... Read More

Why Are We Still Doing GPU Work in JavaScript? (Live WebGPU Benchmark & Demo🚀)

JavaScript has been the main language of the web for years. Its popularity probably surprised even... Read More

I Let AI Rewrite 40% of My Codebase. Here’s What Actually Happened.

AI is no longer a novelty in development. It’s not a toy. It’s not magic. It’s not replacing... Read More

In the AI Agents Era, Why Waste Time Building a Framework?

Not about the result. About the zen of solving your own annoyances one weekend at a time Read More

I overpowered AI by inventing "Brilliant" code by AI opinion itself

As it always happens to me, I started from describing a simple API client, then I started playing... Read More

Building a Production-Grade Table Editor with React and XState

Introduction Table editors look simple. Add rows. Edit cells. Resize columns. But once... Read More

Your Dialog Has role='dialog'. That Doesn't Make It Accessible.

How I built a focus trap, click-outside hook, and roving tabindex from scratch — and what I learned about the gap between ARIA attributes and actual accessibility. Read More

Type-Safe CustomEvents: Better Messaging with Native APIs

The native EventTarget is a hidden gem for internal messaging. It is built-in, fast and stays out of... Read More

I Built a Claude Code Agent That Doesn't Need Me Anymore

I gave my AI agent persistent memory and identity. Four months later, it had a life I knew nothing about. Read More

I built an open-source alternative to Toast and Square for restaurant management

The Problem If you run a small restaurant, your options for online ordering and management... Read More

TanStack Is Eating React's Ecosystem — And Nobody Is Talking About It

Six months ago, I would have laughed at this title. TanStack? The React Query people? Eating an... Read More

I built 10 free Claude Code tools in a weekend - here's what I learned

I've been using Claude Code daily for months. At some point I noticed I kept doing the same tedious... Read More

Breaking Free from the Render Cycle: Event-Driven Frontend Architecture

React encourages a very specific mental model: data flows top-down. Parents pass props to children,... Read More

I’m 13 and I built a Bun framework that’s 2x faster than Express 🚀

It’s a 97kB (2.4kB gzipped) Bun-native framework that hits 21,748 req/s. 👑 Why... Read More

Stop Writing Step Functions by Hand

If you've worked with Step Functions at any real scale, you know the concept is great — orchestrate... Read More

I Over-Engineered My First Project: Bridging TypeScript and Zig with Bun! 🚀

Hello, hello! It's me Owen again! I've been inactive for awhile and thought maybe I should post... Read More

How I Built Aegis — A Credential Isolation Proxy for AI Agents

AI agents are getting really good at calling APIs. But the way we usually give them access — pasting... Read More

notion-flows: Your Notion Pages Are Your Automation Code

I built a CLI tool that turns plain-English Notion pages into live business automations powered by Claude AI — edit the page, change the behavior. No deployments needed. Read More

Open Source Minecraft Server Tools: Why We Built ServerHub and What We Learned

I've been working on Minecraft ServerHub for several months — an open-source platform that monitors... Read More

Code Review for TypeScript React: What to Look For

I've reviewed over 1,000 React PRs. Early on, I nitpicked everything: indentation, variable names,... Read More

PM2 has no web UI. Every open source alternative is dead. So I built one.

Why I started this project PM2 is the most popular process manager for Node.js, with 2... Read More

I built a local-only PDF bank statement parser with a plugin system — here's how it works

I built a local-only PDF bank statement parser — here's how it works Every month I'd open... Read More

I Stopped Context-Switching Between Validation, Forms, and Pipelines

There's a moment every TypeScript developer knows. You're staring at a form bug — a server error that... Read More

I built a free football prediction platform for World Cup 2026 — here's the stack

With the FIFA World Cup 2026 just months away, I wanted to build something my friends and I could... Read More