Showing 523 open source projects for "custom operating systems"

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  • 1
    DOG is an alternative to COMMAND.COM, better and smaller.
    Downloads: 1 This Week
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  • 2
    ReactOS

    ReactOS

    An operating system based on the best Windows NT design principles

    ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).
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    Downloads: 4,292 This Week
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  • 3
    Nikkho

    Nikkho

    Javier Gutiérrez Chamorro (Guti) Open source projects

    Javier Gutiérrez Chamorro (Guti) Open source projects Author's website: https://www.javiergutierrezchamorro.com
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    Downloads: 781 This Week
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  • 4
    ASAP - Another Slight Atari Player
    ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
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    Downloads: 98 This Week
    Last Update:
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  • 5
    Arduino ASCOM Focuser Pro2 DIY

    Arduino ASCOM Focuser Pro2 DIY

    Version 2 of the myFocuser Project

    myFocuserPro2 (myFP2) is an ASCOM - INDI - LINUX - WINDOWS telescope focuser with a large range of options. 315,606+ file downloads. The most popular focuser project. (c) Copyright Robert Brown 2014-2026. All Rights Reserved. Code or portions of code may not be copied or used without written permission from the author. Other Focuser Projects myFP2ESP32 WiFi - https://sourceforge.net/projects/myfocuserpro2-esp32/ [ESP32 Only] myFP2ESP8266 WiFi - ...
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    Downloads: 180 This Week
    Last Update:
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  • 6
    The Doszip Commander

    The Doszip Commander

    TUI file manager (NC clone) with built-in Zip for DOS and Windows

    The Doszip Commander is an LFN-aware TUI file manager (NC clone) with built-in Zip and UnZip for DOS and Windows.
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    Downloads: 34 This Week
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  • 7
    SM-A035F Patched recovery (on stock rec)
    Patched fastbootd-enabled recovery for Samsung Galaxy A03 (SM-A035F) with root ADB, unsigned ZIP support, legacy update-binary fallback, BusyBox compatibility, and dynamic partition auto-mapping.
    Downloads: 9 This Week
    Last Update:
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  • 8
    Open Source SW/HW Project for Embedded Ethernet Applications. Works with AVR ATmega256/128/103, AVR32, SAM7X, SAM7S(E), SAM9, AT91X40, GameBoy Advance, Cortex M3 / M4 (STM32, NXP LPC, LM3S), Freescale Coldfire, RTL8019AS, LAN91C111, CS8900 and DM9000E chips. Offers a tiny TCP/IP stack including HTTP, FTP and DHCP.
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    Downloads: 18 This Week
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  • 9
    AdvanceMAME
    A MAME and MESS port with an advanced video support for Arcade Monitors, TVs, and PC Monitors. It also contains a bootable Linux LiveCD/USB, a frontend with animated MNG/MP3 snapshots, a rom manager, and recompression utilities for compressed files.
    Downloads: 18 This Week
    Last Update:
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  • 10
    Sources of various MSX systems ROMS. The project aims at a complete commented assembly source file.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Scpsec OS
    Scpsec OS is a modern, lightweight, Debian-based Linux distribution designed to provide a fast, stable, and user-friendly desktop computing experience. Built on the reliability of Debian, Scpsec OS combines performance, simplicity, and security into an operating system suitable for everyday users, developers, students, and IT professionals.
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    Downloads: 6 This Week
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  • 12
    BeepOS13
    A systemd less small to medium scale server Operating System based on Devuan 6. All popular packages packed into a live boot environment, just boot, log and go!
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    Downloads: 3 This Week
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  • 13
    Clover EFI bootloader

    Clover EFI bootloader

    Boot macOS, Windows, and Linux on Mac or PC with UEFI or BIOS firmware

    Project has moved to https://github.com/CloverHackyColor/CloverBootloader.
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    Downloads: 1,097 This Week
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  • 14
    Real VMX is a VxWorks like operating system kernel released under LGPL. It should support multiple hardware architectures, only i386 support now. Help wanted with ports to other architectures. Development is done on Linux with the GNU gcc compiler.
    Downloads: 1 This Week
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  • 15
    chickernel redmi note 12/13 DISCONTINUED

    chickernel redmi note 12/13 DISCONTINUED

    A tapas/topaz/sapphire kernel optimized for smoothness and low-memory

    A kernel carefully optimized for - low-memory, and performance - moderate power savings Speciifically crafted (and tested) for the 4GB variant in mind ❤️ tapas/topaz/sapphire/sapphiren ⭐ Download notes: ✅ chickernel-xxx.zip ✅ ❌ chickernel-xxx release source code.zip ❌ Installation guide: - Download via the "files" tab - Reboot to recovery and install the zip - Enjoy ⚠️ Full details in my GitHub release tab...
    Downloads: 19 This Week
    Last Update:
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  • 16
    Ancient Linux on Windows

    Ancient Linux on Windows

    Building and running ancient Linux on Windows

    While I may have started with Linux 0.11, I've expanded this to include several older relases of the Linux kernel that you can cross compile from Windows, and run on Qemu. I've managed to get the older versions of the software tools running on Windows, so that there is no major invasive source changes, outside of either broken drivers, or massaging the makefiles to find things in the new paths, and calling the appropriate tools where needed. Linux 0.10 is the first oldest version of...
    Downloads: 16 This Week
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  • 17
    BitVisor is a tiny hypervisor initially designed for mediating I/O access from a single guest OS. Its implementation is mature enough to run Windows and Linux, and can be used as a generic platform for various research and development projects.
    Downloads: 9 This Week
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  • 18
    ChibiOS/RT free embedded RTOS
    ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.
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    Downloads: 28 This Week
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  • 19
    Downloads: 0 This Week
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  • 20
    Firmware for a power supply with an ATMega32 uC. The hardware is based on the DCG of the ctlab project from the german magazine c't.
    Downloads: 0 This Week
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  • 21

    Active Object real-time OS

    AO RTOS is small real time OS based on Active Object concurrency model

    AO-RTOS is a pure object-oriented small footprint real-time operating system for embedded devices. The project is using Active Object (or Actor) concurrency model and finite state machine (FSM) design template as implementation base.
    Downloads: 2 This Week
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  • 22

    amforth: Interpreter on Microcontrollers

    amforth is an extendible interpreter on microcontrollers

    amforth is an extendable command interpreter running on AVR ATmega and TI MSP430 microcontrollers. The Risc-V and ARM architectures are ascending. Turnkey actions for IoT workloads are possible as well. The command language is close to the Forth 2012 standard.
    Downloads: 11 This Week
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  • 23
    BaltaOS
    BaltaOS: Uno de los OS más conocidos en Argentina. También uno de los OS más intuitivos para el usuario. Hecho en: Argentina, Santa Fe - Piso 1 Saavedra y chacabuco al 1827 Un pequeño grupo de persnas para el desarrolo del mismo.
    Downloads: 0 This Week
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  • 24
    BerserkArch

    BerserkArch

    A bleeding-edge, security-centric Arch-based Linux distribution.

    BerserkArch is a security-focused, performance-tuned Linux operating system (OS) based on Arch Linux, designed for developers, hackers, and technical users. A bleeding-edge, security-centric Arch-based Linux distribution crafted for hackers, developers, and nerds alike. Following the Arch Linux philosophy, it is designed to be highly customizable, allowing users to build their environment with only the components they need, rather than having a lot of pre-installed software like some other...
    Downloads: 37 This Week
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  • 25
    MK88 BIOS

    MK88 BIOS

    Modiifed BIOS for MK88 PC

    This project is aimed to produce modified MK88 BIOS with new features: 1. Improved keyboard driver 2. Support for cp866 encoding 3. Support for DS/DD drives 4. Support for ROM extension cards
    Downloads: 0 This Week
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