Use common module

hosts/caddy/default.nix

@@ -23,7 +23,10 @@ in
   };
 
   my = {
-    utils.commons.enable = true;
+    utils = {
+      commons.enable = true;
+      lxc-standard.enable = true;
+    };
 
     services = {
 
@@ -123,30 +126,15 @@ in
     };
   };
 
-  time.timeZone = "Europe/Rome";
-
   # Extra packages
   environment.systemPackages = with pkgs; [ ];
 
   services = {
-    openssh.enable = true;
-
     iperf3 = {
       enable = true;
       openFirewall = true;
     };
 
-    prometheus.exporters = {
-      node = {
-        enable = true;
-        enabledCollectors = [ "systemd" ];
-      };
-    };
-  };
-
-  networking = {
-    firewall.allowedTCPPorts = [ 9100 ];
-    nameservers = [ "192.168.1.2" ];
   };
 
   system.stateVersion = "24.05";