Posts

• An interactive globe TUI

• Beyond markdown: LLMs that emit interactive UIs as JSON

• Building a Computer Use agent in ~100 lines of Python

• Brute-forcing the hydrogen atom: solving Schrödinger on a million-point grid

• An object allocation benchmark: V8 vs Java vs JavaScriptCore

• How long does it take to fetch 5 million records from an SQLite database in JavaScript?

Demos

Topographical coloring on a dynamic sand heap

Best experienced on desktop.

An interactive sand heap you can reshape by adding or removing sand. The surface is colored by elevation, so the shape of the pile is visible at a glance as it shifts. Rendering runs on WebGL; the sand physics runs in plain JavaScript on the CPU.