Anotaciones

Dumping my brain onto the internet. A collection of technical notes and solutions written for my future self, shared here in case they save someone else a headache.

qemu-wasm: full virtual machines inside your browser

Posted on Fri, 11 Sep 2026 in Tools • Tagged with webassembly, qemu, browser, nix, virtual-machines, github-actions

qemu-wasm ports QEMU to WebAssembly to boot a full x86_64 virtual machine inside the browser. trynix.dev runs any nixpkgs package from the last 13 years, and a GitHub Action boots a PR's build from a single link.