GENADEV OSAn AArch64 hobbyist OS for the Raspberry Pi 3 B+
KnutOSAn x86_64 hobbyist OS written in C and Assembly
SynnixOSHobbyist Operating System targeting x86_64 systems. Includes userspace, Virtual File System, An InitFS (tarfs), Lua port, easy porting, a decent LibC and LibM, and a shell that supports: piping, file redirection, and more.
duckOSYet another hobby x86 UNIX-like operating system written in C and C++. Features a dynamically linked userspace, an in-house c standard library, and more! And yes, it runs DOOM.
MacaronA sweet hobby made operating system written in C++ for x86 CPUs with GUI
opuntiaOSopuntiaOS - an operating system targeting x86, ARMv7, Aarch64
ArvernOS💾 A minimal, experimental and "toy" monolithic kernel to learn about OS development // Work In Progress
opennasknask clone assembly, it can boot tiny OS with Linux
morosMOROS: Obscure Rust Operating System 🦉
lf-os amd64Hobby operating system for amd64 with high ambitions - mirror
MeetixOSAn hobby OS written in modern C++20 which aims to be Unix-like. Currently based on EvangelionNG, a GhostOS derived kernel
SEACSysteme d'exploitation