remove graphics option

default.nix

@@ -14,7 +14,8 @@
   
         boot.kernelParams = [ "snd-intel-dspcfg.dsp_driver=1" ];
 
-        hardware.nvidia = {
+        hardware = {
+            nvidia = {
                 modesetting.enable = true;
                 powerManagement.enable = true;
                 powerManagement.finegrained = true;
@@ -35,6 +36,7 @@
                     };
                 };
             };
+        };
 
         sops = {
             defaultSopsFile = ./secrets.yaml;