rrd-merge merges RRD (round robin database) files together, including the files used by Ganglia, Cacti, and other rrdtool-based software.
statsd-c is a reimplementation of Etsy's famous/infamous "statsd" in C.
statsd-go is a reimplementation of statsd in Go (forked from gographite) with Ganglia submission support.
Expense report software.
Removes ID3v2 tags from MP3 files.