nix/hosts/laptop/led.nix

{...}: {
  systemd.services.micmute = {
    description = "Set microphone mute and normal mute LEDs to off";
    wantedBy = ["multi-user.target"];
    serviceConfig = {
      ExecStart = "/bin/sh -c 'echo 0 | tee /sys/class/leds/platform::micmute/brightness > /dev/null; echo 0 | tee /sys/class/leds/platform::mute/brightness > /dev/null'";
      Type = "oneshot";
      User = "root";
      Group = "root";
    };
  };
}