Open Source ChromeOS Operating System Kernels

Community driven projects featuring the latest innovations for cutting edge apps. Our flagship project JBoss AS is the leading Open Source, standards-compliant, Java EE based application server implemented in 100% Pure Java.

FlashKDA is an open-source library of high-performance CUDA kernels for Kimi Delta Attention, implemented on NVIDIA CUTLASS. It is intended to accelerate the forward pass used by KDA-based language models on modern NVIDIA GPUs. The package integrates with flash-linear-attention and can be selected automatically as the backend for chunk_kda during inference. It supports recurrent state input and output, variable-length batches, internal gating, query-key normalization, and beta activation. Builds can target the detected GPU architecture or multiple supported architectures for wheels and CI pipelines. The repository also provides correctness tests, benchmark material, a direct Python kernel API, and development helpers for CUDA and C++ tooling.

Cooperative Linux is the first method for optimally running Linux on Windows and other operating systems natively. It is a port of the Linux kernel and support code that allows it to run cooperatively without emulation along with another operating system.

Memory OS is a local memory operating system for Hermes Agent. It is designed to help an AI agent retain project context, decisions, structured facts, reasoning patterns, and prior conversations across sessions. The system uses seven memory layers that combine flat files, SQLite, full-text search, structured facts, semantic recall, Qdrant vector storage, and a self-curating wiki pipeline. It injects only relevant context back into the agent so memory remains useful without wasting tokens. The project is provider-agnostic and can work with services such as OpenRouter, OpenAI, Anthropic, Ollama, or local models. It is useful for power users who want a self-hosted, long-term memory layer for AI coding and research workflows.

Committed to the development of fundamental ACPI (Advanced Configuration and Power Interface) components for Linux. This includes a generic ACPI table parser, AML interpreter, bus and device drivers, policy, user interface, and support tools.

This is a small library that allows comunicating with a Webasto (tm) W-Bus capable car heating system. Runs on Personal Computers or for embedded devices (slim design). Easily portable. Includes a Heater manager, heater controller program and more. The GIT repository (CVS is deprecated) also includes a control unit application to control W-Bus capable devices, a W-Bus compatible heater unit firmware application and a heater simulator for testing purposes. Also, a serial port loop back driver for linux is included to simulate OBD II K-Line adapters.

Website: https://prismlinux.org Discord: https://discord.gg/hMrWsTpdqw

This project reimplements from scratch the RPL language made popular by HP programmable calculators, in portable C/C++. The main goal is to release a complete computing environment for various targets. There's currently 4 active targets: the HP 50g, HP39gs and HP40gs calculators and a PC simulator (see the downloads section!). Other ports are planned for the future.

JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.

UFFS: Ultra-low-cost Flash File System, designed for NAND flash working in embedded system. UFFS typically consumes less then 200K ram for 1Gb(page 512)/4Gb(page 2K) NAND flash. It supports direct flash interface, works with or without OS.

Neptune is a kernel and a complete operating system. The Neptune kernel can be used in any of your projects and the Neptune operating system depends on the Neptune kernel. For information on customizing Neptune, go to: http://neptuneos.eu.pn/devel.html

TinyOS is an operating system for embedded sensors and networks. Versions 2.0 and later of TinyOS should be downloaded from www.tinyos.net.

TORO is demonstrating an innovative operating system by integrating at the same ring level both kernel and the user application server. The threads of the user application server are distributed evenly on all CPUs and running independently in parallel. The memory model chosen is NUMA without pagination. During the initialization, the memory is divided proportionally for each processor installed on the system. When a thread needs memory, the memory allocator returns a free block of memory depending on which CPU the thread is running. In the same way, TORO can dedicate resources to specific processor, i.e. a FileSystem. This only CPU then can access to this instance of FileSystem. The scheduler is based on the cooperative threading model, therefore due to this design, TORO can migrate threads between CPUs and send messages between threads without using any lock instruction. TORO is well suited for integrated system to run at high pace application servers like web servers.

xinco [eXtensibe INformation COre] is a powerful Web-Service based Information and Document Management System (DMS) for files, text, URLs and contacts, featuring ACLs, versioning, full text search, an FTP-like client (easy install, J2EE+MySQL/PostgreSQL)

Dreamos is an operating system developed on Sega Dreamcast to be ported to an array of embedded devices. The goal of the project is to be able to run non-ported Unix programs on the Sega Dreamcast and other embedded devices with ease and POSIX compliance

This project is an effort to develop open source software for all old platforms, like MSX, Commodore, AMIGA, Atari, ..... and collect technical information about old platforms, keeping the "old skool" flame alive.

Blob is a boot loader for SA11x0 (StrongARM) platforms. Blob is able to boot a Linux kernel stored in flash or RAM and provide that kernel with a ramdisk (again from flash or RAM).

EduOS is a GPL'ed, educational Operating System. Unlike most OSes currently in dev (i.e. Linux, Solaris, Unix, MacOSX) EduOS is desigend to be a educational resource for programmers new and interested in OS development. It's not designed for the end-us

Sets out to be an innovative new operating system while retaining compatibility with POSIX and Win32

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.

A Java 2 (JDK 1.3/1.4) compatible virtual machine. joeq is unique in that it is almost entirely implemented in Java, making it reliable and efficient. It is also language-independent, so code from any language can be seamlessly and dynamically compiled.

HamserOS is our attempt to build a cute and furry operating system from scratch. Just for fun and a love of hamsters.

MikeOS is a an open source 16-bit operating system for x86 PCs, written in assembly language, which boots from a floppy disk or CD-ROM. It is designed as a learning tool for x86 assembler and basic OS design.

Open OS aims to be a Linux-based operating system with true and complete Win16 and Win32 compatibility as well as enhanced features. OpenOS will rely on the XWindows server, but will use its own desktop environment and window manager.

SuperWaba is a Virtual Machine for handhelds. Runs in PalmOS, Windows CE, Win32, and is fully emulated under JDK/browser. Supports Exceptions, has a complete set of UI controls (Palm/WinCE), double and long, grayscale/color, sockets/serial/IR/Bluetooth