--- title: "Bun 1.4's bun test --parallel cuts a 4-second suite to about 1 second" published: true published_at: 2026-10-06 13:00 +0300 description: "I measured Bun 1.4's new bun test --parallel flag: a 4.04s suite dropped to 1.03s on 4 workers for IO-bound tests, but a CPU-bound suite plateaued at ...
Read articleI have used Redis on almost every backend project I can remember. Caching, sessions, rate limiting, queues, the occasional bit of temporary state that felt too awkward to put in Postgres. At some point it stopped being a decision and became a default. About 3 months ago, I came across Dragonfly, wh...
Read articleEvery time Figma renders a complex design instantly, or Google Sheets recalculates a huge spreadsheet without lag, or a Shopify store applies a custom checkout rule — you're using WebAssembly. You probably didn't know that, and that's kind of the point. For about 25 years, the browser could really ...
Read article## Introduction You click on a button. Nothing happens. You click again. Still nothing. Then the menu opens... and closes right away. We have all lived this. It's a responsiveness problem. And since March 12, 2024, Google measures it with a Core Web Vital: **INP**. Very often, the problem is not ...
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