>>10
Change
#use constant ADMIN_PASS => 'CHANGEME';
to
use constant ADMIN_PASS => 'myFavoritePAssword';
and the S_NOADMIN you pasted there will simply be ignored by kareha, because you'll have an admin pass. Notice that I removed the # to uncomment the line.
You'll also have to change the use constant SECRET or kareha will die on that too.