Have cursor remove the grub config

Now it works??

configuration.nix

@@ -19,16 +19,8 @@ in
     kernelPackages = mkDefault pkgs.linuxPackages_latest;
 
     loader = {
-      efi.canTouchEfiVariables = mkDefault true;
-      grub = {
-        enable = mkDefault true;
-        default = mkDefault "saved";
-        device = mkDefault "nodev";
-        extraEntries = mkDefault "GRUB_SAVEDEFAULT=true";
-        efiSupport = mkDefault true;
-        useOSProber = mkDefault true;
-        theme = mkDefault "${pkgs.kdePackages.breeze-grub}/grub/themes/breeze";
-      };
+      systemd-boot.enable = true;
+      efi.canTouchEfiVariables = true;
     };
     supportedFilesystems = mkDefault [ "ntfs" ];
   };