This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Fly.io
fly.io
did:plc:j7herf6n4xiig2yg7fqdmkci
Built the world's simplest code runner in 5 mins with Sprites.
This is doubly cool. First off, how it works:
User writes some scary JavaScript, which then gets run in a new Sprite. Sprites are literally built for running random code, so bring on the footguns.
🧵
2026-01-27T17:51:01.458Z