Learning operating system development using Linux kernel and Raspberry Pi

A free Windows-compatible Operating System

A completely-from-scratch hobby operating system: bootloader, kernel, drivers, C library, and userspace including a composited graphical UI, dynamic linker, syntax-highlighting text editor, network stack, etc.

(Going to be) A microkernel that implements a WebAssembly "usermode" that runs in Ring 0.

Rust version of THU uCore OS. Linux compatible.

A simple heap memory allocator in ~200 lines.

A Simple Unix-like operating system

libhermit-rs: A Rust-based library operting system

An operating system written in D

An unix-like toy kernel.

A kernel designed to run one and only one application in a virtualized environment

AquilaOS: UNIX-like Operating System

Gramado kernel 1.0

🥑 A simple, handmade, operating system for the intel x86 cpu.

An x86 bootloader written in Rust.

OS where everything is immutable! (Experimental)

Rust wrapper for UEFI.

Tool to create bootable disk images from a Rust OS kernel.

Lua + SQLite + musl libc running on x86.

The Stupid Operating System

HermitCore: A C-based, lightweight unikernel

Horizon/NX kernel reimplementation

The Zenith Operating System is a modern, professional fork of the 64-bit Temple Operating System, designed to survive societal collapse.

Barebones multiboot kernel for beginners

FreeDOS kernel - implements the core MS-DOS/PC-DOS (R) compatible operating system. It is derived from Pat Villani's DOS-C kernel and released under the GPL v2. Please see http://www.freedos.org/ for more details about the FreeDOS (TM) Project. !!! This fork is no longer the primary fork -- Please post PRs and issues to https://github.com/FDOS/kernel !!!

🍬 All-new kernel for @GreenteaOS which runs .exe files

A simple "Unix-like" kernel trying to be POSIX compliant

BoneOS Kernel and Operating System Source Tree

an experimental 64-bit operating system

Operating System