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.

instantOS is described as 'Manjaro based distro that works out of the box but is still aimed at power users. Everything is lightning fast and works out of the box' and is a Linux Distro in the os & utilities category. There are more than 100 alternatives to instantOS for a variety of platforms, including Linux, Self-Hosted, BSD, Mac and Windows apps. The best instantOS alternative is Linux Mint, which is both free and Open Source. Other great apps like instantOS 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.

Pentoo is a security-focused livecd based on Gentoo. It's basically a Gentoo install with lots of customized tools, a customized kernel, and much more.



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.



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




ULinux is based on openSUSE, and is a free linux distribution with the aim of combining the DIY-approach of Arch with the setup of Ubuntu.



The ubermix is an all-free, specially built, Linux-based operating system designed from the ground up with the needs of education in mind.



Visopsys (VISual OPerating SYStem) is an alternative operating system for PC-compatible computers, written “from scratch”, and developed primarily by a single hobbyist programmer since 1997.












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.
