nixos-combined-flake/modules/nixos/base/raspberry-pi/default.nix

{ pkgs, lib, config, ... }: {
  options = {
    hardware.raspberry-pi.enable = lib.mkEnableOption "raspberry pi software";
  };
  config = lib.mkIf config.hardware.raspberry-pi.enable {
    environment.systemPackages = with pkgs; [
      libraspberrypi
      raspberrypi-eeprom
    ];
  };
}