The RPMs on the build page install on my system with a prefix of /opt (/opt/etc, /opt/bin, /opt/lib, etc). I think it is more correct LSB-wise to place to use a prefix of /opt/[something], like /opt/frysk.
TThanks for pointing this out, I will change this in the next respin of the packages.
I've moved all packages to /opt/frysk. New packages are available at the website.