diff --git a/test/vybe/flecs_test.clj b/test/vybe/flecs_test.clj
index e1616e9..87881c7 100644
--- a/test/vybe/flecs_test.clj
+++ b/test/vybe/flecs_test.clj
@@ -129,13 +129,23 @@
           (reset! @t-global (vr.c/matrix-multiply local (nth transform-parent 0)))
           (reset! @t-global local))))))
 
-(vc/defn* default-systems :- :void
+(defmethod vc/c-invoke (declare lala)
+  [{:keys [args]}]
+  (format "((1ull << 63) | ((((uint64_t)(%s)) << 32) + ((uint32_t)(%s))))"
+          #_(flecs/ECS_PAIR)
+          (vc/emit (first args))
+          (vc/emit (second args))))
+
+(vc/defn* ^:debug default-systems :- :void
   [w :- :*]
   (tap> 9999)
+  ;; (ECS_PAIR | ((((uint64_t)(EcsDependsOn)) << 32) + ((uint32_t)(EcsOnUpdate))))
+  #_(bit-or (flecs/ECS_PAIR))
   (let [e (vf.c/ecs-entity-init w (vp/& (vf/entity_desc_t
                                          {:name "vybe_transform"
-                                          :add (-> [(vf.c/vybe-pair (flecs/EcsDependsOn)
-                                                                    (flecs/EcsOnUpdate))
+                                          :add (-> [#_(vf.c/vybe-pair (flecs/EcsDependsOn)
+                                                                      (flecs/EcsOnUpdate))
+                                                    (lala (flecs/EcsDependsOn) (flecs/EcsOnUpdate))
                                                     ;; This `0` is important so Flecs can know
                                                     ;; the end of the array.
                                                     0]