I've put some VERY rudimentary instructions on how to configure a stock Raspberry Pi installation for use with the Qwicktrace hardware in the README on Github.  Also on Github are the schematics of the Hat, along with several different file formats for making the Hat (if you are so inclined).  The README can fairly easily be rolled into a single Setup script (if anyone would like to contribute it :) ).

See the Hackaday project page for a link to the Github repo.