nixos: system: nix: expand trusted users

modules/nixos/system/nix/default.nix

@@ -56,6 +56,8 @@ in
 
         settings = {
           experimental-features = [ "nix-command" "flakes" ];
+          # Trusted users are equivalent to root, and might as well allow wheel
+          trusted-users = [ "root" "@wheel" ];
         };
       };
     }