Gerris is a system for the solution of the partial differential equations describing fluid flow.

BALLView provides fast OpenGL-based visualization of molecular structures, molecular mechanics methods (minimization, MD simulation using the AMBER, CHARMM, and MMFF94 force fields), calculation and visualization of electrostatic properties (FDPB) and molecular editing features.

Origami is a PDF-compliant parser. It provides a scripting tool to generate and analyze malicious PDF files. It can also be used to create on-the-fly customized PDFs, or to inject (evil) code into already existing documents.

Autorandr is a script for managing xrandr configurations based on the connected devices. It can be set up to automatically switch to a stored configuration whenever a change in the configuration is detected.

Idesk displays icons with a short description on the desktop and gives shortcuts to launch any X app.