Add nathan user

nixos/modules/user.nix

@@ -0,0 +1,30 @@
+{
+  inputs,
+  mutableUsers ? false,
+  username ? "nathan",
+  homedir ? "/home/nathan",
+}:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+   security.polkit = { enable = true; };
+   users = {
+	inherit mutableUsers;
+	users.${username} = {
+		home = homedir;
+		description = "Nathan McCarty";
+		shell = pkgs.nushell;
+		isNormalUser = true;
+		extraGroups = [
+		  "wheel"
+		];
+		hashedPassword = "$6$ShBAPGwzKZuB7eEv$cbb3erUqtVGFo/Vux9UwT2NkbVG9VGCxJxPiZFYL0DIc3t4GpYxjkM0M7fFnh.6V8MoSKLM/TvOtzdWbYwI58.";
+	};
+
+   };
+}