add options.services.wa2k

nixos/default.nix

@@ -4,10 +4,33 @@
   lib,
   ...
 }: let
+  inherit (lib) mkEnableOption mkOption types;
+
   cfg = config.services.wa2k;
 in {
-  imports = [./wa2k];
+  options.services.wa2k = {
+    enable = mkEnableOption "webserver for wa2k.com";
 
+    port = mkOption {
+      types = types.port;
+      default = 80;
+      example = 8080;
+      description = ''
+        The listening port on localhost to bind the wa2k.com server to.
+      '';
+    };
+
+    openFirewall = mkOption {
+      types = types.bool;
+      default = false;
+      example = true;
+      description = ''
+        Whether the wa2k listening port should be automatically opened in the system's firewall.
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
     networking.firewall.allowedTCPPorts = lib.optional cfg.openFirewall [cfg.port];
 
     # REF: https://nixos.wiki/wiki/Static_Web_Server
@@ -22,4 +45,5 @@ in {
         };
       };
     };
+  };
 }