Source Ruckus Linux is an embeddable, robust Linux meta-distribution. It's a collection of build tools, source packages, scripts, and documentation all ready to be built into a Linux distribution. It can be used out-of-the-box, but its real strength lies in being used as a base for your own distribution. In other words, it exists purely to be forked, although it can be used as-is.
Lernstick Exam Environment is a live Linux distribution with a focus on exam situations, usually installed on USB sticks. To provide up-to-date software choice on a solid base, it uses a combination of Debian stable with official and custom backports. Access to local storage media (internal hard drive, other USB storage media) or network access is prohibited per default, but certain network connections (e.g., to network printers or websites) can be allowed in a whitelist.
IronBox Linux is a Linux distribution based on Linux From Scratch and designed for usage in high security server environments. Its main goal is to ensure a stable and secure deploy where patching and system upgrades do not depend on security bugs, but on the task team schedules and the needed features of the system or the software it runs.
Grand Unified Builder (GUB) is a mini source-based distribution and packaging system. It cross-compiles several packages with their dependencies and assembles them into a single installation package. It currently supports GNU/Linux, FreeBSD, Mac OS X, and Microsoft Windows installation packages. All packages are fully relocatable and can be installed with user privileges. Plain Python classes are used to describe package build specifics. For reasonably well behaved packages, individual build specifications can stay very simple by extending the generic build specification classes. It was originally developed for turnkey building of all LilyPond binary installers.
HotSpotEngine is a Web based software for the HotSpot Billing System and all-in-one hotspot management solutions. It supports wireless or wired networking. It is designed to run on a dedicated PC, and it is available as an installable CD image (ISO). It comes with a Linux-based OS and all required software included. Its main features include the ability to create randomly generated vouchers, prepaid user accounts with time limits or data limits, the ability to refill vouchers, and user sign-up via PayPal integration.
minili is an extremely minimal Linux distribution. It is 3.8 MB in size and does not include the X Window System, so it only operates in text mode. It is a standalone system, and can be useful for educational or experimental purposes. It uses a non-persistant file system while running. It is currently available as an ISO image.
Bran is a backup server solution based on Bacula. It is a special Linux distribution to organize the backup center of an organization. It can create a server that is ready to use after a very simple install procedure. The server has a very simple user interface that relieves users of the burden of worrying about the implementation details of the backup process.