A small, preemptively-multitasking, 32-bit x86 operating system kernel. (The name means Yet Another uniX).

Write a Unix-like microkernel with a Plan 9-inspired VFS as IPC. On top of that, make a UNIXish userland that is enough source compatible with Linux for me to be able to make a fully-fledged system without having to reinvent the wheel too much.

The libc is very incomplete.

There are very few drivers; not even a proper disk filesystem is in place yet.

The kernel works, and is actually quite complete, but there are a few features missing and some of the code is rather messy.

There is documentation available as man pages in the doc/ directory (for the kernel only, currently). It is mostly complete.

Currently only tested on my Linux computer. It might work on WSL or macOS, but that hasn't been tested.

ninja headers
./bootstrap-llvm.sh # this step might take a few hours
ninja

Then, ninja qemu for a qemu-based test run; ninja qemu-dbg to start qemu on debug mode.

All code I wrote is under the MIT license. Code not written by me:

• liballoc is under the public domain. It is at src/mem/malloc.[ch] and libc/malloc.[ch]
• vfprintf was taken from the Sortix libc, under ISC. It is at libc/stream/vfprintf.c