Keep Calm and Read the Friendly Manual :-)
Description:
GentleOS/32 is a hobby operating system for vintage 32-bit PCs. A monolithic kernel for i386 with minimal hardware: VGA/SVGA, keyboard, mice, and basic serial support. Designed for experimentation and tinkering, it aims for simple, configurable hardware compatibility and a platform for retro-apps.
Description:
Asterinas is a production-grade, memory-safe Linux alternative kernel written in Rust, combining monolithic performance with microkernel-like separation. It ships a bespoke toolkit (OSDK) and a NixOS-based distribution, aiming for safe, high-performance OS development. Targets x86-64/ARM64, supports 230+ syscalls, and hosts an experimental Asterinas NixOS.
Description:
An open project offering a Linux VM with 1,700+ pre-installed operating systems and emulators, plus one-click launchers for Windows and Linux to explore computing history.
Description:
OmniOS Community Edition is an open-source illumos-based enterprise server OS featuring ZFS, bhyve and Crossbow networking, DTrace, SMF, Linux zone support, and lightweight virtualization. It emphasizes a minimal, feature-focused platform with rapid deployment and open development on GitHub.
Description:
Sculpt is an open-source general-purpose OS from Genode, combining a microkernel architecture, capability-based security, sandboxed device drivers, and virtualization for PC hardware and the PinePhone.
Description:
C:\Deb is a Linux system built on Debian 13 and Wine, designed to run Win32 apps natively while preserving the usual Linux software ecosystem.
Description:
Insanely Small Linux (ISL) is a minimalist Linux OS for x86_64 designed to fit a tiny footprint—about 5MB. It uses a custom kernel build, BusyBox, a bespoke login manager, and a shell, prioritizing extreme optimization and rapid boot for development and experimentation.
Description:
Linux payload implementing the HV exploit and a custom bootloader to run Linux on PS5 Phat with 3.xx/4.xx firmware, enabling use of PS5 hardware and optional M.2 boot for Linux.
Description:
Historic collection of DOS-era source listings and artifacts (86-DOS 1.00 kernel, PC-DOS snapshots, CHKDSK) scanned, transcribed, and shared to study, preserve, and explore the origins of MS-DOS/PC-DOS. Licensed under MIT for researchers and enthusiasts.
Description:
River is a non-monolithic Wayland compositor that delegates window management to separate window managers implementing the river-window-management-v1 protocol, providing core compositing and rendering, support for Wayland extensions, XWayland, and hot-swapping window managers for flexible desktop environments.