I think the impedance mismatch is because some things are really simple, but are not documented in a way that is discoverable by someone who doesn't know, and is searching in the paradigm they do know.
I was trying to figure out how to install new machines from a central build host. Neither the straightforward install CD process, nor system.build.qcow2 made sense. I popped into the IRC channel to ask, and it turns out a 'nix build' 'nix copy', 'nix-env --store --set' and 'switch-to-configuration boot' did the trick. That's an extreme amount of power and simplicity that just kind of obviates a whole set of heavyweight processes (eg Debian automated-install). But if you are searching around for the usual type of automated install process, you just come up empty handed looking for it.
I was trying to figure out how to install new machines from a central build host. Neither the straightforward install CD process, nor system.build.qcow2 made sense. I popped into the IRC channel to ask, and it turns out a 'nix build' 'nix copy', 'nix-env --store --set' and 'switch-to-configuration boot' did the trick. That's an extreme amount of power and simplicity that just kind of obviates a whole set of heavyweight processes (eg Debian automated-install). But if you are searching around for the usual type of automated install process, you just come up empty handed looking for it.