GRUB config should use Jinja (or some sort of template)
We have GRUB configs inlined in each architecture's post-script. It would be great if we could refactor this so we can easily change them all.
What would be even greater would be to do {% for arch in arches %}
or such, which would allow us to someday make multi-arch CDs. I would love to see this. But just simply making it a simple template would be great to start.