When trying to get the Sparky iso Public Key through wget https://sparkylinux.org/files/klucz/sparkylinux-iso.gpg.key, I get the Error 403: forbidden.
This is an old key, not in use any more, but updated, so try again.
Still forbidden
oh...
My mistake, it is the iso key, not repo old key.
Fixed now, try again.
It works now, GREAT!