Nice touch that it thought of Bellard for 'Emulating Windows 10 in the browser'! He's already halfway there with the Windows 2000 emulator: https://bellard.org/jslinux/

Didn't know about this, thanks.

A friend and I got a busybox/buildroot linux running in browser WASM for running a compiler test website (like Rust Playground), the end product looks very similar to this.