nixos-hardware/lenovo/thinkpad/x1-nano/gen1/default.nix

{ pkgs, ... }: 

{
  imports = [ ../. ];

    environment.systemPackages = with pkgs; [
        alsa-utils
    ];

   systemd.services.x1-fix = {
   description = "Use alsa-utils to fix sound interference on Thinkpad x1 Nano";
   serviceConfig = {
     Type = "simple";
     ExecStart = "${pkgs.alsa-tools}/bin/hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0";
     Restart = "on-failure";
   };
   wantedBy = [ "default.target" ];
 };
}