Showing 1661 open source projects for "custom operating systems"

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  • 1
    Retrobios

    Retrobios

    Complete BIOS and firmware packs for RetroArch, Batocera, Recalbox

    ...The architecture is typically close to bare metal, requiring knowledge of assembly language and hardware interfaces. It may also serve as a foundation for building custom operating systems or experimenting with low-level system design. Overall, retrobios functions as a learning and experimentation platform for understanding foundational computing concepts.
    Downloads: 1,124 This Week
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  • 2
    Best Custom ROM
    Just a mirror
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    Downloads: 182 This Week
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  • 3
    Glow OS

    Glow OS

    System Analysis Software

    Glow is an educational, hobbyist operating system written in C and Assembly, developed to help learners understand the internals of OS design and kernel development. Targeting x86_64 systems, Glow features its own kernel, bootloader, and minimal userland. With clear code structure and a simple design, it serves as a playground for experimenting with low-level systems programming, boot sequences, interrupt handling, and basic UI components like shells and text rendering.
    Downloads: 12 This Week
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  • 4
    RetroBIOS

    RetroBIOS

    Complete BIOS & firmware packs for RetroArch, Batocera, Recalbox, etc.

    RetroBIOS is an open-source project that provides complete BIOS and firmware packs for a wide range of emulators and retro gaming platforms. It includes thousands of verified system files required to run consoles and arcade systems accurately across tools like RetroArch, Batocera, RetroPie, and EmuDeck. Each BIOS file is validated against emulator source code to ensure correctness, compatibility, and proper functionality. The project simplifies setup by offering automated install scripts...
    Downloads: 690 This Week
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  • 5
    whisper.cpp

    whisper.cpp

    Port of OpenAI's Whisper model in C/C++

    whisper.cpp is a lightweight, C/C++ reimplementation of OpenAI’s Whisper automatic speech recognition (ASR) model—designed for efficient, standalone transcription without external dependencies. The entire high-level implementation of the model is contained in whisper.h and whisper.cpp. The rest of the code is part of the ggml machine learning library. The command downloads the base.en model converted to custom ggml format and runs the inference on all .wav samples in the folder samples....
    Downloads: 662 This Week
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  • 6
    Salt

    Salt

    Automate the management and configuration of infrastructures at scale

    ...Before implementing Salt to manage any data center infrastructure it is important to understand a few things about Salt platform support including: What platforms will the Salt Master run on? What systems and infrastructure can be managed by a Salt Minion? Salt runs on and manages many versions of Linux, Windows, Mac OS X and UNIX. The Salt Supported Operating System document defines the specific operating systems that are fully supported and outlines the package creation policy for each operating system listed. The document also outlines the best-effort support policy for additional operating systems.
    Downloads: 392 This Week
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  • 7
    NetherSX2

    NetherSX2

    Continuation of NetherSX2 based on AetherSX2 4248

    NetherSX2-patch is a community-driven continuation and enhancement of the NetherSX2 Android PlayStation 2 emulator, itself a modded fork of the open-source AetherSX2 project originally based on PCSX2. It focuses on providing a more complete and feature-rich experience by applying patches to the upstream emulator build and removing ad-related bloat, fixing notification issues, and exposing many internal settings so users have finer control over performance and compatibility on mobile devices....
    Downloads: 349 This Week
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  • 8
    openFyde

    openFyde

    openFyde supported hardware "x86 PC with Intel HD graphics

    overlay-amd64-openfyde is the official overlay repository for the amd64 (x86_64) build of openFyde, a Chromium OS-based distribution tailored for developers, power users, and alternative devices outside of Google's supported ChromeOS hardware. openFyde offers a fast, secure, and web-centric desktop experience with support for Linux apps, Android containers, and cloud integration. This overlay includes the custom configurations and firmware patches necessary to optimize openFyde for generic...
    Downloads: 90 This Week
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  • 9
    hhuOS

    hhuOS

    hhuOS - A small operating system

    hhuOS is an educational operating system project developed by students at Heinrich Heine University (HHU) in Düsseldorf, Germany. It is built from scratch in C and Assembly and intended as a teaching tool to help students grasp the foundations of kernel development, memory management, system calls, and multitasking. The project focuses on clarity, modularity, and hands-on experimentation with real OS components, making it suitable for OS development courses or personal exploration.
    Downloads: 22 This Week
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  • 10
    Pony OS

    Pony OS

    My Little Unix: Kernels are Magic

    ponyos is a lightweight, UNIX-like operating system developed as a personal hobby project by the creator of ToaruOS. It features a monolithic kernel written in C and aims for a POSIX-compliant environment with a built-from-scratch userland. ponyos includes a graphical interface, dynamic linker, shared libraries, and a package manager. It’s designed for fun, experimentation, and as a platform to learn and play with operating system internals, with surprisingly advanced features given its...
    Downloads: 51 This Week
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  • 11
    k23

    k23

    Experimental WASM Microkernel Operating System

    k23 is a microkernel-based operating system project written in Zig, an emerging systems programming language focused on safety, simplicity, and performance. k23 explores the design of modern OS features like message-passing, memory protection, and modular service construction using Zig’s powerful low-level capabilities. It is an experimental and educational project intended to show how Zig can be used for robust, readable systems programming while enabling contributors to rethink traditional OS structures from the ground up.
    Downloads: 0 This Week
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  • 12
    eduOS-rs

    eduOS-rs

    A teaching operating system written in Rust

    eduOS-rs is a teaching operating system written in Rust, developed by RWTH Aachen University to support courses on systems programming and operating systems. It serves as a practical and educational tool that demonstrates key OS concepts like memory management, multitasking, privilege separation, and system call handling in a safe and modern language. Designed to run on x86_64 hardware using QEMU, eduOS-rs leverages Rust’s ownership model and type safety to reduce bugs common in low-level systems development. ...
    Downloads: 5 This Week
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  • 13
    StartOS

    StartOS

    Linux server OS optimized for self-hosting

    StartOS is a sovereign, self-hosted operating system built by Start9 Labs to empower individuals with digital independence. Designed to run on personal servers, it provides a privacy-first interface for installing, managing, and running decentralized applications without needing technical expertise. StartOS includes services like Bitcoin nodes, messaging platforms, file hosting, and password managers, all running locally and without third-party control. With a user-friendly UI and strong...
    Downloads: 24 This Week
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  • 14
    SerenityOS

    SerenityOS

    The Serenity Operating System

    SerenityOS is an open source Unix-like operating system project with its own custom kernel, graphical user interface, system libraries, and userland tools. It combines a nostalgic “90s UI aesthetic” with modern system capabilities: a preemptive, multi-threaded kernel, own browsers, network stack, file systems, IPC, security features, and a suite of graphical / developer applications.
    Downloads: 22 This Week
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  • 15
    RetroArch

    RetroArch

    RetroArch is a frontend for emulators, game engines and media players.

    RetroArch is a way to run classic games on a wide assortment of Operating Systems and Consoles. Support the Developers on their Patron! https://www.patreon.com/libretro
    Downloads: 27 This Week
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  • 16
    Pop!_OS

    Pop!_OS

    A project for managing all Pop!_OS sources

    Pop!_OS repository serves as the central source code hub for Pop!_OS, a Linux distribution developed by System76 and based on Ubuntu, designed to deliver a polished and performance-oriented desktop experience. It contains packaging, configuration, and system-level customizations that define how Pop!_OS behaves and differentiates itself from standard Ubuntu installations. The project integrates system tools, hardware optimizations, and user interface components into a cohesive operating...
    Downloads: 33 This Week
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  • 17
    spdlog

    spdlog

    Fast C++ logging library

    spdlog is a header only library. Just copy the files under include to your build tree and use a C++11 compiler. It provides a python like formatting API using the bundled fmt lib. spdlog takes the "include what you need" approach, your code should include the features that actually needed. For example, if you only need rotating logger, you need to include "spdlog/sinks/rotating_file_sink.h". spdlog provides various log targets, which are, rotating log files, daily log files, console logging...
    Downloads: 3 This Week
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  • 18
    CoolPotOS

    CoolPotOS

    CoolPotOS for ia32 / amd64

    CoolPotOS is a small, hobbyist operating system designed to be minimal and educational, offering the most basic kernel capabilities while remaining accessible to beginners. Written in C and Assembly, it focuses on bootstrapping, kernel entry, and simple console output. Though in early stages, CoolPotOS showcases the boot process, memory segmentation, and essential CPU features, serving as a great learning resource for those new to operating system internals.
    Downloads: 1 This Week
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  • 19
    ProzillaOS

    ProzillaOS

    Web-based operating system inspired by Ubuntu Linux and Windows

    ProzillaOS is a lightweight, user-friendly Linux distribution based on Arch Linux, designed to offer a fast, minimal, and easy-to-use experience out of the box. Tailored for new users and enthusiasts who enjoy the power of Arch with added usability, ProzillaOS provides a curated desktop environment with pre-installed essential applications, graphical tools for package management, and a clean, modern aesthetic. Its goal is to maintain a balance between simplicity and customization, making it...
    Downloads: 9 This Week
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  • 20
    netboot.xyz

    netboot.xyz

    Your favorite operating systems in one place

    netboot.xyz enables you to boot into many types of operating systems using lightweight tooling to get you up and running as soon as possible. Discover new operating systems without having to download and rewrite media over and over again. Rescue operating systems from a single image. An essential for any sysadmin. netboot.XYZ uses the iPXE project to enable you to provision, rescue, or load into a live boot environment leveraging the Preboot Execution Environment (PXE) on most systems. netboot.xyz is a convenient place to boot into any type of operating system or utility disk without the need of having to go spend time retrieving the ISO just to run it. iPXE is used to provide a user-friendly menu from within the BIOS that lets you easily choose the operating system you want along with any specific types of versions or bootable flags.
    Downloads: 30 This Week
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  • 21
    EtchDroid

    EtchDroid

    An application to write OS images to USB drives, on Android

    EtchDroid is an open-source application that writes disk images to USB drives. Use it to make a bootable operating system USB drive when your laptop is dead.
    Downloads: 80 This Week
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  • 22
    VirtualBox

    VirtualBox

    Virtualization software for x86_64 hardware

    VirtualBox is a powerful open-source full virtualization software that allows a user to run one or more “guest” operating systems simultaneously inside “virtual machines” on a single physical “host” machine. It supports a wide variety of host platforms (Linux, Windows, macOS, Solaris, etc.) and guest OSes, enabling, for example, running Linux on a Windows PC, running Windows Server on a Linux host, or even legacy OSes in a controlled environment.
    Downloads: 141 This Week
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  • 23
    WANIX

    WANIX

    A virtual environment kit for the local-first web

    wanix is a hobbyist Unix-like operating system written from scratch in C, aiming to implement core features of a traditional OS in an educational and modular way. The project walks through kernel development starting from bootloading, memory management, system calls, and eventually to user programs. With support for x86_64 and simple tools like a shell and basic file I/O, wanix serves as both a learning platform and a launching point for more advanced kernel features.
    Downloads: 1 This Week
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  • 24
    Fastfetch

    Fastfetch

    A maintained, feature-rich and performance oriented, neofetch

    Fastfetch is a high-performance, highly customizable command-line tool, similar to Neofetch, that displays system information in an appealing and flexible format. Written primarily in C, it's optimized for speed and versatility. Neofetch-like styling with performance-oriented implementation. Configuration via modules for tailored fetch layouts. Fast, visually appealing system info display. Highly customizable output with modular design.
    Downloads: 38 This Week
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  • 25
    Magisk

    Magisk

    Suite of open source tools for customizing Android

    Magisk is a suite of tools intended for Android customization, and supports devices higher than Android 4.2. Some elements of Android customization are root, boot scripts, SELinux patches, AVB2.0 / dm-verity / forceencrypt removals, etc. Some of the most important features of Magisk are that it provides root access to your device and it modifies read-only partitions when installing modules. Also, you can hide Magisk from root detections / system integrity checks. Magisk comes with a huge...
    Downloads: 390 This Week
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