WIP

app/src/main/res/navigation/app_nav_graph.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/app_nav_graph"
+    app:startDestination="@id/placeholder">
+
+    <include app:graph="@navigation/ui_home_nav_graph" />
+    <fragment android:id="@+id/placeholder" >
+        <action
+            android:id="@+id/action_placeholder_to_ui_home_nav_graph"
+            app:destination="@id/ui_home_nav_graph" />
+    </fragment>
+
+
+</navigation>