CStorablePPack::delete_file() is virtual fair enough
eX_any_profile_value_changed_cb belongs to a base class, too
anon namespace within extern "C" is pointless
let the rk1968 widgets be shown
move some project-wide filenames to very toplevel project_strings.h
whitespace
include edfhed.glade into aghermann.gresource, have edfhef-gtk make use of common aghermann/ui code
static is useless in a main.cc, isn't it?