Editor's Synopsis
Dex (@dexhorthy) shares what he considers one of the highest leverage AI productivity hacks he's adopted recently, crediting Simon Willison (@simonw) as the source of the idea. The core concept is to use a single HTML file for as long as possible before reaching for a backend, complex logic, React, or a full web app setup. The key insight is that AI agents can write the entire file, making it remarkably efficient to prototype and build lightweight tools without the overhead of traditional web application architecture.