Aseba's core is a lightweight virtual machine, small enough to run on any 16 bits microcontroller. In Aseba, all virtual machines are linked in a network and all their programs are developed and debugged from a single application, Aseba Studio.

CairoSVG is a SVG converter based on Cairo. It can export SVG files to PDF, PostScript and PNG files. The main part of CairoSVG is a SVG parser, trying to follow the SVG 1.1 recommendation from the W3C. Once parsed, the result is drawn to a Cairo surface that can be exported to various formats: PDF, PostScript, PNG and even SVG.

Tao is a software package for sound synthesis using physical models. It provides a virtual acoustic material constructed from masses and springs which can be used as the basis for building quite complex virtual musical instruments.

botch is a collection of tools to create and analyze dependency graphs. This task is facilitated by a range of individual tools which use the deb822 and graphml formats to exchange information with each other.

Supercat is a program that colorizes text based on matching regular expressions/strings/characters. Supercat supports html output as well as standard ASCII text. Unlike some text-colorizing programs that exist, Supercat does not require you to have to be a programmer to make colorization rules.