fix(nix): Fix option names

hosts/laptop/default.nix

@@ -39,4 +39,22 @@
       efi.canTouchEfiVariables = true;
     };
   };
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "25.05";
 }

nixos-modules/common.nix

@@ -1,7 +1,7 @@
 { pkgs, lib, ... }: {
   nix = {
     package = lib.mkDefault pkgs.nix;
-    trustedUsers = [ "mat" ];
+    settings.trusted-users = [ "mat" ];
     extraOptions = ''
       keep-outputs = true
       keep-derivations = true