add bridge on desktop1 and a test httpd container to test network

modules/nix/containers/nixos/default.nix

@@ -1,5 +1,6 @@
 { ... }:
 {
   imports = [
+    ./httpd.nix
   ];
 }

modules/nix/containers/nixos/httpd.nix

@@ -0,0 +1,39 @@
+{ lib, config, ... }:
+let
+  inherit (lib) mkIf mkOption types;
+  cfg = config.smayzy.containers.nixos.httpd;
+in
+{
+  options.smayzy.containers.nixos.httpd = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "httpd nixos ct";
+    };
+    bridge = mkOption {
+      type = types.str;
+      description = "the bridge to use e.g. (br0)";
+    };
+    ip = mkOption {
+      type = types.str;
+      description = "ip addr e.g. (192.168.1.20)";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    containers.httpd = {
+      autoStart = true;
+      privateNetwork = true;
+      hostBridge = cfg.bridge;
+      localAddress = cfg.ip;
+      config = { ... }: {
+        system.stateVersion = "25.11";
+
+        services.httpd = {
+          enable = true;
+        };
+        networking.firewall.allowedTCPPorts = [ 80 ];
+      };
+    };
+  };
+}