reactos / reactos

An open-source, Alpha-stage operating system that aims for binary and driver compatibility with Windows NT-family applications.

IceWhaleTech / ZimaOS

ZimaOS is a Buildroot-based NAS operating system evolved from CasaOS, distributed as installer images for Zima hardware and x86-64 UEFI PCs.

armbian / build

Build framework that compiles custom Armbian Linux OS images for ARM single-board computers from source.

vlang / vinix

Vinix is a bare-metal operating system for amd64 and arm64 written in the V programming language, aiming to be modern, fast, and usable.