integrate rig in program sequence

.gitignore

@@ -7,3 +7,6 @@ bin/
 obj/
 
 Raw/
+
+
+anchors.txt

src/Program.cs

@@ -31,12 +31,14 @@ class Program
         // World.OcclusionEnabled = true;
         // Device.DisplayBlend = DisplayBlend.Blend;
 
+        Rig.Init();
         Mono.Init();
         Arts.Init();
 
         // Core application loop
         SK.Run(() =>
         {
+            Rig.Frame();
             Mono.Frame();
 
             // stepper

src/Rig.cs

@@ -5,4 +5,13 @@ namespace snake;
 
 static class Rig
 {
+    public static void Init()
+    {
+
+    }
+
+    public static void Frame()
+    {
+
+    }
 }