add usage guide

README.md

@@ -1,6 +1,40 @@
 # Wowzers what a cool website!
 Source code for da website o_O
 
+### Using
+First add a the wa2k flake as an input:
+```nix
+# in flake.nix
+inputs = {
+  wa2k = {
+    # url = "git+https://tearforge.net/cry/wa2k.com";
+    url = "/home/me/test/wa2k";
+    inputs = {
+      systems.follows = "systems";
+      nixpkgs.follows = "nixpkgs";
+    };
+  };
+};
+```
+
+Then ensure `wa2k.nixosModules.default` is imported and `wa2k.overlays.default` is used:
+```nix
+# in configuration.nix
+imports = [
+  inputs.wa2k.nixosModules.default
+];
+
+nixpkgs.overlays = [
+  inputs.wa2k.overlays.default
+];
+
+services.wa2k = {
+  enable = true;
+  port = 8080;
+  openFirewall = true;
+};
+```
+
 ### Local Development
 >[!WARNING]
 > This project is packaged using Nix, it's easier to work it this way :3

nixos/default.nix

@@ -12,8 +12,8 @@ in {
     enable = mkEnableOption "webserver for wa2k.com";
 
     port = mkOption {
-      types = types.port;
-      default = 80;
+      type = types.port;
+      default = 8080;
       example = 8080;
       description = ''
         The listening port on localhost to bind the wa2k.com server to.
@@ -21,7 +21,7 @@ in {
     };
 
     openFirewall = mkOption {
-      types = types.bool;
+      type = types.bool;
       default = false;
       example = true;
       description = ''
@@ -30,13 +30,13 @@ in {
     };
   };
 
-  config = lib.mkIf cfg.enable {
-    networking.firewall.allowedTCPPorts = lib.optional cfg.openFirewall [cfg.port];
+  config = {
+    networking.firewall.allowedTCPPorts = lib.optional (cfg.enable && cfg.openFirewall) cfg.port;
 
     # REF: https://nixos.wiki/wiki/Static_Web_Server
     services.static-web-server = {
-      enable = true;
-      listen = "[::]:${cfg.port}";
+      enable = cfg.enable;
+      listen = "[::]:${builtins.toString cfg.port}";
       root = "${pkgs.wa2k-website}/www";
 
       configuration = {