Or rather, free software, to be entirely correct.
This is it. I won’t have time to work on PackRat very much any longer, though I can certainly oversee development a little. Some generous offers of help recently have given me the final nudge towards opening up the PackRat sources to the public.
Let’s hope this will revitalize the project a little. It’s a shame to see it stagnate for so long; I still like using it myself.
Anyway, without further ado, you can find the sources and start contributing here: https://github.com/jfinkhaeuser/PackRat