It pre-builds these images and stocks them, which is the lab standing in for the
builder — so it must do what the builder does and replace the artifact with the
reference the machine holds. Without it the unresolved field travels to the
machine and the whole declaration is refused.
The pivot checks proved the running control plane is pinned to a digest this
mesh's registry serves, which a carried image satisfies just as well. What the
installer now exists to make true is that a build happened, from the commit the
bed asked for — and that was printed and not checked.
Both image scripts copied the runtime's installed tree and relied on the sdk
inside it being a link into the sibling repository. That is true only where
somebody linked them by hand, and false as soon as the dependencies are
installed the ordinary way — which fetches the sdk as sources with nothing
compiled. The image still built, and every entry point in it pointed at
nothing.