• winfile: Original Windows File Manager (winfile) with enhancements
• MS-DOS: The original sources of MS-DOS 1.25 and 2.0, for reference purposes
• junest: The lightweight Arch Linux based distro that runs upon any Linux distros without root access
• ksplice: Patch kernel without rebooting
• pycoreutils: Python implementation of basic Unix utilities, modeled to support GNU coreutils features.
• kaitai_struct: Kaitai Struct: declarative language to generate binary data parsers in C++ / C# / Go / Java / JavaScript / Lua / Perl / PHP / Python / Ruby
• openlaunchd: A launchd(8) port for non-Darwin systems
• os01: Bootstrap yourself to write an OS from scratch. A book for self-learner.
• xpra-html5: HTML5 client for xpra - Outdated, DO NOT USE
• OSX-KVM: Run macOS on QEMU/KVM. With OpenCore + Big Sur support now! Only commercial (paid) support is available.
• pycoreutils: A pure Python implementation of the UNIX coreutils
• coreutils: Cross-platform Rust rewrite of the GNU coreutils
• osjs-xpra-application: OS.js Xpra Client Application
• oomd: A userspace out-of-memory killer
• raspberry-pi-os: Learning operating system development using Linux kernel and Raspberry Pi
• kpatch: kpatch - live kernel patching
• rubber-docker: A workshop on Linux containers: Rebuild Docker from Scratch