Add network configuration in a different module

modules/networking.nix

@@ -0,0 +1,43 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    avahi
+    wireguard
+  ];
+
+  # Set hostname and hostid
+  networking = {
+    hostName = "panacea";
+    hostId = "";
+  };
+
+  # Enable zeroconf
+  services.avahi = {
+    enable = true;
+    nssmdns = true;
+    publish = {
+      enable = true;
+      userServices = true;
+    };
+    reflector = true;
+  };
+
+  # Wireguard setup
+  networking.wireguard.interfaces = {
+    wg0 = {
+      ips = [ "10.8.0.4/32" ];
+      privateKeyFile = "/home/coolneng/.wg/keys/privatekey";
+      peers = [
+        # zion
+        {
+          publicKey = "GN8lqPBZYOulh6xD4GhkoEWI65HMMCpSxJSH5871YnU=";
+          allowedIPs = [ "0.0.0.0/0" ];
+          endpoint = "coolneng.duckdns.org:1194";
+          persistentKeepalive = 25;
+        }
+      ];
+    };
+  };
+
+}