OS, add Non-EFI Support

nixosModules/automatic/default.nix

@@ -4,16 +4,23 @@
   options = {
     system.timezone = lib.mkOption { default = "America/Los_Angeles"; };
     system.extraFonts = lib.mkOption { default = []; };
+    system.isNonEFI = lib.mkEnableOption 
+      "Enable if you are running a non-EFI system";
     system.users.bigWheels = lib.mkOption { default = []; };
   };
   
-  config = {
-    # Use the systemd-boot EFI boot loader.
+  config = lib.mkMerge [
+    (lib.mkIf config.system.isNonEFI {
+      boot.loader.grub.enable = false;
+      boot.loader.generic-extlinux-compatible.enable = true;
+    }) 
+    (lib.mkIf (!config.system.isNonEFI) {
       boot.kernelPackages = pkgs.linuxPackages_latest;
       boot.loader.systemd-boot.enable = true;
       boot.loader.timeout = 1;
       boot.loader.efi.canTouchEfiVariables = true;
-
+    })
+    {
       networking.hostName = hostname;
       system.stateVersion = "23.05";
 
@@ -59,5 +66,6 @@
           source-han-sans # Pan-CJK font
         ] ++ config.system.extraFonts;
       };
-  };
+    }
+  ];
 }