Welcome to Linux 6.1 running natively in your browser!
There's no x86_64/RISC-V emulation going on here, instead this is a port of the kernel to WebAssembly.
We've got a patched version of the Linux kernel running, complete with virtio devices, memory isolation, and multi-core support, For the userspace, we've ported BusyBox and Musl.
Please note: This is a highly experimental work in progress. You will encounter many bugs and crashes. These are expected and will be fixed over time.
If this sounds interesting, you can check out the source at github.com/tombl/linux