Modified caddy to make a simple working code

hosts/v-th-ctr-01/configuration.nix

@@ -0,0 +1,31 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ modulesPath, ... }:
+
+{
+  imports = [
+    # Include the default incus configuration.
+    "${modulesPath}/virtualisation/lxc-container.nix"
+    # Include the container-specific autogenerated configuration.
+  ];
+
+  networking = {
+    dhcpcd.enable = false;
+    useDHCP = false;
+    useHostResolvConf = false;
+  };
+
+  systemd.network = {
+    enable = true;
+    networks."50-eth0" = {
+      matchConfig.Name = "eth0";
+      networkConfig = {
+        DHCP = "ipv4";
+        IPv6AcceptRA = true;
+      };
+      linkConfig.RequiredForOnline = "routable";
+    };
+  };
+}