{
  description = "raspberry-pi nixos configuration";

  inputs = { };

  outputs = { self }: {
    overlay = import ./overlay;
    rpi = import ./rpi { overlay = self.overlay; };
    rpi-3b-plus = import ./rpi-3b-plus self.rpi;
    rpi-4b = import ./rpi-4b self.rpi;
    rpi-zero-2-w = import ./rpi-zero-2-w self.rpi;
  };
}