Inherited the frontend of a 150K-user app, mostly vibe coded
The product runs the whole business and has 150K users. The codebase underneath needs a lot of work. Where do you draw the line on quality when this many people depend on it?
Kool Codez
React libraries and TypeScript UI components by Lucio D'Alessandro. Type safe WebSocket hooks, virtualized searchable dropdowns, gesture driven sidebars, and Clojure form tooling. Fast, polished, maintainable frontend engineering.
Latest posts
Streaming OpenAI Responses Over WebSockets in React: A Production Guide
How to stream OpenAI responses over WebSockets in React, with reconnection, heartbeats, and the type safe hooks library I built to ship it.
How Close Can a PWA Get to a Native App? Closer Than You Think
I set out to see how far the web can go toward feeling native. Here’s what I found while building a PWA demo that might just make a full rewrite unnecessary.
Inside a 16.67 Millisecond Frame
Understand how rendering works through a practical example.
From Spaghetti to Simplicity
Rebuilding a Legacy Trading UI in a Global Bank.
We Badly Need Frameworks
With all their pros and cons.
10 CSS Features I've Found Really Useful
Some lesser known CSS properties that solve common problems elegantly.
Trading Grids: A Technical Deep Dive
Build production-ready financial data grids that handle real-time market data and complex user interactions.