Hi guix! Recently I used nixos on one of my machines. And I noticed people there use tar balls for fetching package definitions. And It worked much faster for me. That was surprising and I decided to write this letter. Is git the right tool for getting new package definitions? What if git commits history will become enormous? As I see, first guix pull running too long for a lot of people. Probably there are ways to cache all of this. Anyway, I'm just curious about it. If there are already answers for my question, I would like to read them.