@jfred I have opened and stared at @vagrantc's config several times https://codeberg.org/vagrantc/mnt-reform-guix-config/src/branch/main/config-mnt-reform.scm
One thing tho is Guix still doesn't have the nice option Debian has for unencrypted /boot and encrypted rest-of-root! Which without Grub becomes a lot more important...
(I think Nix has it, and has the same challenges that Guix does, but they seem to have solved it; presumably we could too?)