This documents some thoughts and goals of the Tvix Build protocol, and
how it is possible to express Nix builds with it.
Additionally, it explains a proposed design for reference scanning.
Change-Id: I4b1f3feb2278e3c7ce06de831eb8eb1715cba1c9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12012
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: yuka <yuka@yuka.dev>
Tested-by: BuildkiteCI
