The managarm Operating System is a unique microkernel-based operating system with notable properties such as a completely asynchronous API for I/O and good compatibility with Linux user space APIs. Despite being a microkernel, managarm aims to provide efficient implementations of common user space functionality like POSIX. It is not a Linux distribution, running its own kernel without sharing any source code with Linux. Features include SMP support, ACPI support, networking support, and compatibility with modern hardware devices. Users can try out managarm by downloading nightly images and running them using qemu. Supported software programs include Weston and GNU Coreutils, while supported hardware includes USB, graphics, input devices, and storage.
https://github.com/managarm/managarm