BeeCrypt is an ongoing project to provide strong and fast cryptography in the form of a toolkit usable by commercial and open source projects. Included in the library are entropy sources, random generators, block ciphers, hash functions, message authentication codes, multiprecision integer routines, and public key primitives.
The Openwall Linux kernel patch is a collection of security "hardening" features for the Linux kernel. In addition to the new features, some versions of the patch contain various security fixes. The "hardening" features of the patch, while not a complete method of protection, provide an extra layer of security against the easier ways to exploit certain classes of vulnerabilities and/or reduce the impact of those vulnerabilities. The patch can also add a little bit more privacy to the system by restricting access to parts of /proc so that users may not see what others are doing.
Paranormal is an extremely customizable visualization plugin for XMMS, based (conceptually) on Winamp's AVS plugin. Its goal is to be as flexible as possible by providing a number of 'actuators' that perform various tasks involved in generating an image. These actuators can then be combined to create a nearly unlimited number of effects.
GNU Lightning is a library that generates assembly language code at run time. It is very fast, making it ideal for Just-In-Time compilers, and it abstracts over the target CPU, as it exposes to the clients a standardized RISC instruction set (inspired by the MIPS and SPARC chips).
joeq is a Java 2 (JDK 1.3 and 1.4) compatible virtual machine. It is unique in that it is entirely implemented in Java, leading to greater reliability, portability, maintainability, and efficiency. It is also language-independent, so code from any supported language can be seamlessly compiled, linked, and executed dynamically.
The Working Overloaded Linux Kernel (WOLK) project provides stable and development kernels for either server or testing purposes. These kernels provide a server kernel and also a service for developers and end users who can't be up-to-date with the latest kernels/patches but want to test new kernel features. Patches may be added upon request.