configuration.nix/hosts/skipper/services/udev.nix

{ pkgs, ... }: {
  services.udev = {
    enable = true;
    packages = [ pkgs.yubikey-personalization ];
    extraRules = ''
      ACTION=="add|change", KERNEL=="sd[a-z]*", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="bfq"
      ACTION=="add|change", KERNEL=="sd[a-z]*", ATTR{queue/rotational}=="1", ATTR{queue/scheduler}="bfq"
      ACTION=="add|change", KERNEL=="nvme[0-9]*", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="kyber"
    '';
  };
}