Khronosphere is an audio recording tool. Its special feature is a buffer that keeps capturing audio even before the actual recording is started. This enables the user to prospectively catch any interesting sound that normally would have been lost. The buffer size is freely definable by the user. The software itself places no restrictions; the only limits are the resources of the host system. Khronosphere is very similar to and inspired by Jack Time Machine. They both have the same basic concept, but Khronosphere supports larger buffer sizes.
The Dmapd project provides a GObject-based implementation of DMAP sharing. Dmapd features support for both DAAP (iTunes) and DPAP (iPhoto), support for realtime transcoding of media formats not natively supported by clients, and support for many metadata formats, such as those associated with Ogg Vorbis and MP3 (e.g., ID3). It has been used on OpenWrt Linux-based systems with as little as 32MB of memory to serve music, video, and photograph libraries containing thousands of files.