{
  nixos-hardware,
  pkgs,
  ...
}:
# usage:
# blankscreen {force, poke}
let
  blankscreen = "echo 0 > /sys/class/backlight/intel_backlight/brightness; setterm -term linux -blank </dev/tty1";
in
{
  imports = [
    # Include the results of the hardware scan.
    ./hardware-configuration.nix

    # Community-curated hardware configuration
    nixos-hardware.nixosModules.lenovo-thinkpad-x1-9th-gen # includes intel cpu and ssd
  ];

  personal.hardware = {
    usb.enable = false;
    disks.crypted = "/dev/disk/by-uuid/b7a3424f-d8cd-4985-829c-224bf0f0842a";
    firmwareNonFree.enable = true;
    keyboard.keyMap = "fr";
    sound.enable = false;
  };

  services.logind.settings.Login = {
    # don't suspend on lid close
    HandleLidSwitchDocked = "ignore";
    HandleLidSwitchExternalPower = "ignore";
    HandleLidSwitch = "ignore";
  };

  environment.shellAliases = { inherit blankscreen; };
  systemd = {
    suppressedSystemUnits = [ "systemd-backlight@.service" ];
    services.blankscreen = {
      description = "Shut down screen";
      path = [ pkgs.util-linux ];
      script = ''
        ${blankscreen} force
      '';
      wantedBy = [ "default.target" ];
      after = [ "multi-user.target" ];
    };
  };
}