Maestro: UNIX-like kernel and operating system written in Rust, compatible-ish with Linux

Maestro is a lightweight Unix-like kernel written in Rust.

The goal is to provide a lightweight operating system able to use the safety features of the Rust language to be reliable.

Maestro's GitHub page

The state of this project is actually kind of amazing - roughly 31% of Linux systemcalls are more or less already implemented, and it also comes with a daemon manager, a package manager, and can already run musl, bash, various core GNU utilities, and so on. It has kernel modules, a VGA text mode terminal, virtual memory, and a lot more.