many improvements

modules/nixos/networking.nix

@@ -1,7 +1,35 @@
-{lib, ...}:{
-  networking.networkmanager.enable = true;
-  networking.networkmanager.wifi.powersave = lib.mkDefault true;
-  users.users.remy.extraGroups = [
-    "networkmanager"
-  ];
-}
+{
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.nix-config.networking;
+in
+{
+
+  options = {
+    nix-config.networking.hostName = lib.mkOption {
+      type = lib.types.str;
+      default = "nixos";
+      };
+  };
+
+  config = {
+    networking.hostName = cfg.hostName;
+
+    networking.networkmanager.enable = true;
+    networking.networkmanager.wifi.powersave = lib.mkDefault true;
+    users.users.${config.nix-config.userName}.extraGroups = [
+      "networkmanager"
+    ];
+    services.avahi.enable = true;
+    services.avahi.openFirewall = true;
+
+    # networking.firewall = {
+    #   enable = false;
+    # };
+
+  };
+
+}