mmq plays arbitrary audio files gaplessly and continuously without needing a predefined queue. mmq is an exercise in minimalism, so it is more about avoiding needless features than anything else. mmq may be used standalone or managed by a larger application. mmq is only configurable at build time. Currently, FLAC decoding and SALSA-lib audio output support are implemented.
RWMA (Ruby window manager addons) is a modular wrapper around dmenu and dzen for adding various keyboard driven actions to (usually minimalistic) window managers, inspired by ruby-wmii. Its main purpose is launching programs and displaying notifications, but it can be expanded with plugins (for example translation, music player control, and volume control).
slackeria takes a list of projects and checks whether they are present in certain places, such as freshmeat or various distributions. If they are, their version is also reported. This makes it easy to monitor projects and, for example, to notify distributions of updates when they are lagging behind.
Citrus is a library for converting numbers with units into numbers with other units. It accomplishes this by performing dimensional analysis on the units. This allows input and output to be expressed in terms of many different units simultaneously, combined via multiplication, division, and exponentiation.
tk92 is multi-platform software for configuring Radio Shack PRO-92 and PRO-2067 scanner radios. It lets you read a memory image from the receiver or an SPG file, view and change settings using a graphical interface, and sort memory channels by frequency or by label. Users can import and export memory channel and talk group data from CSV files. tk92 can then write the image from the computer back to the radio.