There's a distro that back in the day did not have installable images; they only had a script to install it from an existing distro (I think it was Gentoo, but

There's a distro that back in the day did not have installable images; they only had a script to install it from an existing distro (I think it was Gentoo, but I'm not sure on that). Given that with Sandstorm, you are essentially replacing the standard GNU et al. userland with the Sandstorm userland (since turning on user namespaces with the standard userland would allow every user to be root), I don't think that it is unreasonable to view Sandstorm that way either.