I need a way of reseting darktable to its factory settings. With shotwell it is simply a case of deleting the home directory for shotwell, but there doesn't appear to be one for DT under it's name.

I can't use darktable for more than about 30 seconds as it attempts to load up the library of about 30,000 RAW files from one folder and unsurprisingly crashes. This is the only thing holding me back from 100% cross over to ubuntu.