refactor

modules/nixos/hardware/networking/default.nix

@@ -0,0 +1,32 @@
+{ options, config, pkgs, lib, ... }:
+
+with lib;
+with lib.plusultra;
+let cfg = config.plusultra.hardware.networking;
+in
+{
+  options.plusultra.hardware.networking = with types; {
+    enable = mkBoolOpt false "Whether or not to enable networking support";
+    hosts = mkOpt attrs { }
+      (mdDoc "An attribute set to merge with `networking.hosts`");
+  };
+
+  config = mkIf cfg.enable {
+    plusultra.user.extraGroups = [ "networkmanager" ];
+
+    networking = {
+      hosts = {
+        "127.0.0.1" = [ "local.test" ] ++ (cfg.hosts."127.0.0.1" or [ ]);
+      } // cfg.hosts;
+
+      networkmanager = {
+        enable = true;
+        dhcp = "internal";
+      };
+    };
+
+    # Fixes an issue that normally causes nixos-rebuild to fail.
+    # https://github.com/NixOS/nixpkgs/issues/180175
+    systemd.services.NetworkManager-wait-online.enable = false;
+  };
+}