Would it make sense to have Saltstack configuration and management integrated as a Qubes system tool?
This package manage could download a Qubes public GPG key and then download various saltstack recipes for implementing different appVM, template VM states.
You are long enough here already to learn how to use search term “How to copy to dom0”. All I see from you are questions and doubts. Not a single try of a contribution. Sorry.
I am no of those to use aliases to say such things.