nix/checks/open-homepage.nix

@@ -4,38 +4,32 @@
 }:
 nixosTest {
   nodes = {
-    # Host with just the default configuration
-    defaults = {
-      imports = [self.nixosModules.default];
-      services.tlaternet-webserver.enable = true;
-    };
-
     host = {
+      config,
+      lib,
+      pkgs,
+      ...
+    }: {
       imports = [self.nixosModules.default];
 
       services.tlaternet-webserver = {
         enable = true;
         listen = {
           addr = "0.0.0.0";
-          port = 8080;
+          port = 8000;
         };
       };
 
-      networking.firewall.allowedTCPPorts = [8080];
+      networking.firewall.allowedTCPPorts = [8000];
     };
 
-    client = {};
+    client = {pkgs, ...}: {};
   };
 
   testScript = ''
     start_all()
 
-    # Assert that the defaults work
-    defaults.wait_for_unit("tlaternet-webserver.service")
-    defaults.succeed("curl --fail http://localhost:8000 >&2")
-
-    # Assert that we can listen on a public interface
-    host.wait_for_unit("tlaternet-webserver.service")
-    client.succeed("curl --fail http://host:8080 >&2")
+    host.wait_for_unit("default.target")
+    client.succeed("curl --fail http://host:8000/ >&2")
   '';
 }

nix/module.nix

@@ -16,7 +16,9 @@ in {
   options = {
     services.tlaternet-webserver = {
       enable = mkEnableOption "tlaternet web server";
-      listen = {
+      listen = mkOption {
+        type = submodule {
+          options = {
             addr = mkOption {
               type = str;
               description = "IP address.";
@@ -31,6 +33,8 @@ in {
           };
         };
       };
+    };
+  };
 
   config = mkIf cfg.enable {
     systemd.services.tlaternet-webserver = {