Darwin is the Open Source operating system from Apple that forms the basis for Mac OS X, and PureDarwin is a community project to make Darwin more usable (some people think of it as the informal successor to OpenDarwin.

BITS-PyOS is described as 'BIOS-Implementation-Test-Suite-Based Python Operating System' and is a operating system in the development category. There are more than 100 alternatives to BITS-PyOS for a variety of platforms, including Linux, Self-Hosted, BSD, Mac and Windows apps. The best BITS-PyOS alternative is Linux Mint, which is both free and Open Source. Other great apps like BITS-PyOS are Ubuntu, Debian, Fedora and Arch Linux.
Darwin is the Open Source operating system from Apple that forms the basis for Mac OS X, and PureDarwin is a community project to make Darwin more usable (some people think of it as the informal successor to OpenDarwin.

Karoshi provides a simple graphical interface that allows for quick installation, setup and maintenance of a network.



BeeFree OS is inspired from Ubuntu, Windows 7 and Linux Mint. The name is acronym for Beautiful, Effective, Efficient and Freedom.




Ubuntu Cloud is an open source Linux operating system designed to be used as a personal cloud server. It is based on the well known Ubuntu Linux distribution and recognized as an official Ubuntu flavor, distributed by Canonical.




GNU-Darwin aims to be the most free software distribution. Our mission is two-fold: Focus on projects that leverage our unique combination of Darwin and GNU, and help users to enjoy the benefits of software freedom.





Popular Alternatives to Scratch for Windows, Web, Mac, Linux, iPad and more. Explore 25+ apps like Scratch, all suggested and ranked by the AlternativeTo user community.




miniBSD is a project to develop a set of scripts that shrinks a running FreeBSD system to a small sized miniBSD distribution suited for small media like USB pens and CF cards.

Springdale Linux (SDL) / Formerly known as PUIAS Linux is a RHEL-based Distribution and Mirror. A project of members of the computing staff of ?Princeton University and the ?Institute for Advanced...
A new OS/2-based operating system from Arca Noae, codenamed Blue Lion, arrived today, May 15, 2017, after nearly two years in development.
