SIMD Cross-platform headers is a cross- platform, cross-compiler, cross CPU C/C++ header collection that aids the creation portable vectorized (SIMD) C/C++ code. It supports (or partially supports) x86 (MMX/SSE/SSE2) GCC and MSVC, PPC Altivec GCC and CodeWarrior, ARM GCC, and software-emulated SIMD.
PySL is a package that makes S-Lang functions and variables accessible via Python. It allows any S-Lang data type to move from S-Lang to Python scope and back. It also lets the user call any intrinsic or user-defined S-Lang function (including those defined by imported modules) from Python. All of this can be accomplished using a simple, module-like interface.
JLM image viewer is able to view standard image types as well as JLM and PLM image types. It is also able to lighten or darken an image using a "lightspace" technique. The technique is equivalent to changing the exposure time of the camera which took the image. The lightening or darkening method is generally considered superior to techniques found (such as gamma correction) which are found in image manipulation programs such as photoshop or the GIMP.
RNtrack is a mail tracker/router for FidoNet-like networks. It's purpose is to process netmail on netmail hubs, though it can be useful for an ordinary node. It takes a letter, compares it with a mask and, if comparison was successful, it executes the corresponding operation with this letter. It works with popular message bases, MSG, PKT, Squish, and JAM.