diff --git a/demo/app.py b/demo/app.py
deleted file mode 100644
index 2f44926..0000000
--- a/demo/app.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# py-scopes/demo/app.py
-
-def demo_app(environ, start_response):
-    status = '200 OK'
-    headers = [("Content-type", "text/plain; charset=utf-8")]
-    start_response(status, headers)
-    return ['Hello World'.encode()]
-
diff --git a/demo/config.py b/demo/config.py
index c4f2668..464dff2 100644
--- a/demo/config.py
+++ b/demo/config.py
@@ -2,8 +2,10 @@
 
 from dotenv import load_dotenv
 from os import getenv
+from scopes.server.app import demo_app, zope_app
 
 load_dotenv()
 
 server_port = getenv('SERVER_PORT', '8999')
 
+app = zope_app
diff --git a/demo/server.py b/demo/demo_server.py
similarity index 74%
rename from demo/server.py
rename to demo/demo_server.py
index aabed33..219d9bb 100644
--- a/demo/server.py
+++ b/demo/demo_server.py
@@ -1,4 +1,4 @@
-# py-scopes/demo/server.py
+# py-scopes/demo/demo_server.py
 
 from wsgiref.simple_server import make_server
 
@@ -10,3 +10,9 @@ def run(app, config):
             httpd.serve_forever()
         except KeyboardInterrupt:
             print('Shutting down.')
+
+
+if __name__ == '__main__':
+    import config
+    run(config.app, config)
+
diff --git a/demo/main.py b/demo/main.py
deleted file mode 100644
index 4eef565..0000000
--- a/demo/main.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# py-scopes/demo/main.py
-
-import config
-
-from app import demo_app
-import server
-
-server.run(demo_app, config)
-
diff --git a/pyproject.toml b/pyproject.toml
index 02a3fe6..405c74e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
-demo = ["python-dotenv"]
+demo = ["python-dotenv", "zope.publisher"]
 test = ["pytest"]
 
 [tool.setuptools]
diff --git a/scopes/server/__init__.py b/scopes/server/__init__.py
new file mode 100644
index 0000000..cf54a0c
--- /dev/null
+++ b/scopes/server/__init__.py
@@ -0,0 +1 @@
+"""package scopes.server"""
diff --git a/scopes/server/app.py b/scopes/server/app.py
new file mode 100644
index 0000000..675a789
--- /dev/null
+++ b/scopes/server/app.py
@@ -0,0 +1,43 @@
+# scopes.server.app
+
+from zope.publisher.base import DefaultPublication
+from zope.publisher.browser import BrowserRequest
+from zope.publisher.publish import publish
+
+
+def demo_app(environ, start_response):
+    print(f'*** environ {environ}.')
+    status = '200 OK'
+    headers = [("Content-type", "text/plain; charset=utf-8")]
+    start_response(status, headers)
+    return ['Hello World'.encode()]
+
+
+def zope_app(environ, start_response):
+    request = BrowserRequest(environ['wsgi.input'], environ)
+    request.setPublication(DefaultPublication(AppRoot()))
+    request = publish(request, False)
+    response = request.response
+    start_response(response.getStatusString(), response.getHeaders())
+    return response.consumeBodyIter()
+
+
+class AppRoot:
+    """Zope Demo AppRoot"""
+
+    def __call__(self):
+        """calling AppRoot"""
+        return 'At root'
+
+    def __getitem__(self, key):
+        def child():
+            """get child"""
+            print(f'--- getitem {key}')
+            return 'getitem'
+        return child
+
+    def hello(self): 
+        """method hello"""
+        return 'Hello AppRoot'
+
+