OopisOS is not a website; it's a complete operating system simulation that runs entirely on your machine. There is no backend server. Every file you create, every user you add, every command you run is processed and stored locally. Your world is yours alone, governed by a robust security model that you control.

This project began as a question: Can a complex, stateful, multi-user system be built with nothing but the native tools of the web? The answer is a resounding yes. OopisOS is a living demonstration of what's possible when modern browser capabilities are wielded with disciplined, framework-free architecture.