Roundup is a simple-to-use and install issue-tracking system with web, command-line xmlrpc, rest (in the 2.0 development line) and e-mail interfaces. It is based on the winning design from Ka-Ping Yee in the Software Carpentry Track design competition. Downloading the source allows you to start a demo instance in a few minutes to see if it will fill your needs. Unpack the tarball and run: python demo.py
Eventum is a user-friendly and flexible issue tracking system that can be used by a support department to track incoming technical support requests or by a software development team to quickly organize tasks and bugs. Eventum is used by the MySQL AB Technical Support team, and has allowed them to dramatically improve response times.
klystrack is a tracker for making C64/NES/Amiga-style chiptunes on a modern platform. Here are some features. Sound: Additive synthesis with filters (think SID, Atari, NES etc.); Hard sync and ring modulation (like SID); FM synthesis (think Adlib, MSX, OPL2 etc.); Wavetable for samples or custom waveforms to be used in synthesis (think Amiga, SNES); Built-in wave generator and editor; Programmable instruments not limited to simple arpeggios. Sequencer: Tracker with free positio
Trac is a software project and release management tool, and source control frontend for Git and Subversion. It provides issue tracking, timelines, progress/roadmap tracking and documentation features (Wiki with MarkDown support).