libDockApp is a simple library for easily writing Window Maker dock applications, also known as dockapps (those that only show up in the dock). It is very limited and can only be used for dockapps that open a single appicon for each process in only a single display, but this seems to be enough for most, if not all, dockapps.
bbcpufreq is GUI front end for the CPU frequency daemon for Linux, cpufreqd. It finds its use in blackbox-like minimalistic window managers (in the slit/docking application). It allows users to switch cpufreqd between manual and dynamic modes, and to select a desired power profile (i.e. desired speed and speed limits).