611 Open source projects that are alternatives of or similar to Sigma

Microkernel and userspace written in Rust exploring modern ideas

Running x86-16 or x86-32 code from x86-64 UEFI; _very experimental_ • mirror of https://gitlab.com/tkchia/biefircate • developer notes at https://gitlab.com/tkchia/biefircate/-/blob/main/doc/NOTES.asciidoc

Mcube Kernel: Operating System Supporting Dynamically Switchable Kernel Models

An x86_64 hobbyist OS written in C and Assembly

A simple, clean code, multi-tasking operating system written in pure assembly language for 64-bit processors from the AMD64 family.

A community driven OS by the youth

MoonOS (just a kernel atm) is a micro kernel designed for the x86_64 and arm architecure.

x86_64 OS kernel with completely async userspace and single address space [WIP; but basic kernel functionality implemented]

a little 64bit operating system written in c++ with smp support

Yet 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.

Experimental Stand-alone 32-bit Kernel with Bootloader written in AT&T Assembly and Freestanding C

"It is very special"

A hand-made SMP-aware kernel

Simple microkernel (early stage)

Operating system designed to be fast and secure.

An unix-like toy kernel

xtrix OS repo

SynapseOS - модульная операционная система на языке C.

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

RocketOS is a Unix based OS that uses legacy BIOS and GRUB and is written in C17. It is being developed for educational purposes primarily, but it still is a serious project. It is currently in its infancy.

Technology is free, SnowFlakeOS

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.

A toy monolithic kernel written in C++

NOTICE: The ToaruOS-NIH Project has been MERGED UPSTREAM. This repository is now archived.

Dennix is a unix-like hobbyist operating system written from scratch.

an experimental 64-bit operating system

Unikraft is an automated system for building specialized POSIX-compliant OSes known as unikernels. (Core repository)

x86-64 assembly µkernel

The Stupid Operating System

An operating system written in C

华为鸿蒙分布式操作系统（Huawei OpenHarmony）开发技术交流，鸿蒙技术资料，手册，指南，共建国产操作系统万物互联新生态。

A sweet hobby made operating system written in C++ for x86 CPUs with GUI

A small operating system where I experiment and learn osdev.

Free Pascal Operating System (FPOS) is a operating system consists of a minimal kernel built on FreePascal. It contains a Scheme implementation of a hard drive (ATA) driver, keyboard (PS2), serial (8250 UART), FAT32 filesystem and a small real time clock manager. The project was built to experiment with developement of operating system using a h…

A free Windows-compatible Operating System

AquilaOS: UNIX-like Operating System

🍬 All-new kernel for @GreenteaOS

Main kernel tree

HermitCore: A C-based, lightweight unikernel

Frosted: Free POSIX OS for tiny embedded devices

My hobby operating system microkernel written in Rust

A microkernel based operating system developed from scratch. This repository also includes all Saturn services and applications.

🦠 µnix is a UNIX-like operating system

Operating System Coded in Assembly and C

Microkernel and userspace written in Rust exploring modern ideas

Rust operating system running WebAssembly as userspace in ring 0

Hobby operating system for amd64 with high ambitions - mirror

Kernel for my operating system KoraOS

Super-simple OS

MOROS: Obscure Rust Operating System 🦉

(Inactive, Checkout AvanaOS, Rewrite of this) This is a New Operating System (Kernel right now). Made completely from scratch, We aim to make a complete OS for Learning purpose

Tupai is a multi-tasking operating system I wrote for my degree that focuses on safety and design, targeting a variety of platforms.

32 bit singletasking C kernel

MollenOS/Vali is a modern operating system that is built with focus on abstraction and a modular design, allowing anyone to port it to any architecture. It currently targets the x86-32 and x86-64 platform.

🏠 Homepage of the @GreenteaOS

👷🏻‍♂️ An easy starting point for your first OS/Kernel

Such OS; Very Duck!

A developing operating system

CelOS is a simple, easy-to-use, flatpak centric Linux distribution for everyone based on Ubuntu 20.04.

Operating System development experiment in Ada