modules/config: init new module

Signed-off-by: unexplrd <unexplrd@linerds.us>

modules/nixos/config/networking/network-manager/wireless-iwd.nix

@@ -0,0 +1,15 @@
+{config, ...}: {
+  networking = {
+    networkmanager.wifi.backend =
+      if config.module.config.useIwd
+      then "iwd"
+      else "wpa_supplicant";
+    wireless.iwd = {
+      enable = config.module.config.useIwd;
+      settings = {
+        General.AddressRandomization = "network";
+        Settings.AlwaysRandomizeAddress = true;
+      };
+    };
+  };
+}