Sencap is a simple ENCAP software manager. Encapping is a method of installing software from source tarballs into private trees (bin, lib, man, share) and symlinking them to the system tree (e.g. /usr/local). Uninstallation of encapped software is quick, reliable and easy. Encapping is best used to augment the default package manager, not to replace it.
The OpenCOE project provides an implementation of the publicly-available DII COE APIs. The Defense Information Infrastructure Common Operating Environment (DII COE) is an initiative of the Defense Information System Agency to provide a common set of resources and procedures for system administration and security across multiple platforms. The OpenCOE project is not in any way affiliated with or sponsored by DISA.
SoL (Server optimized Linux) is a Linux distribution completely independent from other Linux distributions. It was built from the original source packages and is optimized for heavy-duty server work. It contains all common server applications, and features XML boot and script technology that makes it easy to configure and make the server work.
WISP-Dist is a modular embedded Linux distribution for wireless routers, but can be used for other purposes as well. The entire system fits in 8 MB flash/16 MB RAM. Highlights include an easy-to-use menu interface, commandline access, an Access Point mode (on selected cards), OSPF/RIPv2, bandwidth shaping, NAT, Layer 3 (proxy arp) bridging, and other goodies. The goal is to create an open, customizable, and easy-to-use solution for wireless routers.
Yum (Yellow dog Updater, Modified) is an automatic updater and package installer/remover for RPM systems. It automatically computes dependencies and figures out what things should occur to install packages. It makes it easier to maintain groups of machines without having to manually update each one using rpm.