Are there any open source Pivotal Tracker clones that people have experience using or think might be good, with essentially the same features?
Key features are:
- Automatically popping tasks out of a certain time window, based on complexity, dragging based priority and number of tasks estimated possible to do, based on actual past progress.
- One view with (preferably split by this sprint, next sprint, and later tasks)
- Projection of future iterations and release dates
- The User story, Minimum Viable Product focus