Roundup is a simple-to-use and -install issue-tracking system with
command-line, web and e-mail interfaces. It is based on the winning design
from Ka-Ping Yee in the Software Carpentry "Track" design competition.
See https://wiki.roundup-tracker.org for our project wiki.
We eat our own dog food and use roundup to track roundup tickets. See our tracker at https://issues.roundup-tracker.org.