WIP

app/src/main/res/layout/activity_main.xml

@@ -13,4 +13,17 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
+
+    <androidx.fragment.app.FragmentContainerView
+        android:id="@+id/fragmentContainerView"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="409dp"
+        android:layout_height="649dp"
+        app:defaultNavHost="true"
+        app:layout_constraintBottom_toTopOf="@+id/bottom_nav"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:navGraph="@navigation/main_nav"
+        tools:layout="@layout/fragment_blank" />
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -3,4 +3,12 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/app_main_nav">
 
+    <include app:graph="@navigation/feature_debug_navigation" />
+
+    <fragment
+        android:id="@+id/feature_debug_navigation"
+        android:name="one.nem.lacerta.feature.debug.BlankFragment"
+        android:label="DEBUG_Blank" />
+
+
 </navigation>