diff --git a/src/kolibri_app/__init__.py b/src/kolibri_app/__init__.py
index 59222cc..d148eeb 100644
--- a/src/kolibri_app/__init__.py
+++ b/src/kolibri_app/__init__.py
@@ -4,7 +4,7 @@
 
 from kolibri_app.constants import MAC
 
-__version__ = "0.4.0"
+__version__ = "0.4.1"
 
 os.environ["KOLIBRI_INSTALLER_VERSION"] = __version__
 
@@ -13,3 +13,4 @@
 
 os.environ["DJANGO_SETTINGS_MODULE"] = "kolibri_app.django_app_settings"
 enable_plugin("kolibri.plugins.app")
+enable_plugin("kolibri_app")
diff --git a/src/kolibri_app/application.py b/src/kolibri_app/application.py
index fa520d9..b2830ae 100644
--- a/src/kolibri_app/application.py
+++ b/src/kolibri_app/application.py
@@ -8,6 +8,7 @@
 from kolibri.plugins.app.utils import interface
 from kolibri.plugins.app.utils import SHARE_FILE
 from kolibri.utils.conf import KOLIBRI_HOME
+from kolibri.utils.conf import OPTIONS
 from kolibri.utils.server import KolibriProcessBus
 from magicbus.plugins import SimplePlugin
 
@@ -78,7 +79,10 @@ def start_kolibri_server(self):
 
         if callable(share_file):
             interface.register_capabilities(**{SHARE_FILE: share_file})
-        self.kolibri_server = KolibriProcessBus()
+        self.kolibri_server = KolibriProcessBus(
+            port=OPTIONS["Deployment"]["HTTP_PORT"],
+            zip_port=OPTIONS["Deployment"]["ZIP_CONTENT_PORT"],
+        )
         app_plugin = AppPlugin(self.kolibri_server, self.load_kolibri)
         app_plugin.subscribe()
         self.kolibri_server.run()
diff --git a/src/kolibri_app/kolibri_plugin.py b/src/kolibri_app/kolibri_plugin.py
new file mode 100644
index 0000000..e19fd1d
--- /dev/null
+++ b/src/kolibri_app/kolibri_plugin.py
@@ -0,0 +1,5 @@
+from kolibri.plugins import KolibriPluginBase
+
+
+class KolibriApp(KolibriPluginBase):
+    kolibri_option_defaults = "options_defaults"
diff --git a/src/kolibri_app/options_defaults.py b/src/kolibri_app/options_defaults.py
new file mode 100644
index 0000000..d1c5f59
--- /dev/null
+++ b/src/kolibri_app/options_defaults.py
@@ -0,0 +1,5 @@
+option_defaults = {
+    "Deployment": {
+        "HTTP_PORT": 0,
+    }
+}