Most recent amateur radio transceivers allow external control of their functions through a computer interface. Unfortunately, control commands are not always consistent across a manufacturer's product line and each manufacturer's product line differs greatly from its competitors.

EKG ("Eksperymentalny Klient Gadu-Gadu") is an open source Gadu-Gadu client for UNIX systems. Gadu-Gadu is an instant messaging program, very popular in Poland.

Editor like sed, but for binary files. bbe performs basic byte operations on blocks of input stream. bbe is a command line tool developed for Unix systems.

Ming is an SWF (Flash) file format output library. It is written in C, with wrappers for C++, Perl, Python, PHP and experimental support for Ruby and Java.

TracMercurial is a plugin for Edgewall Software's Trac that allows Trac to use Mercurial for version control instead of Subversion.