diff --git a/React/Fabric/Utils/MainRunLoopEventBeat.h b/React/Fabric/Utils/MainRunLoopEventBeat.h
index b0e029eb6a0..189e062f645 100644
--- a/React/Fabric/Utils/MainRunLoopEventBeat.h
+++ b/React/Fabric/Utils/MainRunLoopEventBeat.h
@@ -7,7 +7,7 @@
 
 #include <CoreFoundation/CoreFoundation.h>
 #include <CoreFoundation/CFRunLoop.h>
-#include <fabric/uimanager/FabricUIManager.h>
+#include <fabric/uimanager/primitives.h>
 #include <fabric/events/EventBeat.h>
 
 namespace facebook {
diff --git a/React/Fabric/Utils/RuntimeEventBeat.h b/React/Fabric/Utils/RuntimeEventBeat.h
index 1ddd3983c28..09fba65f5e0 100644
--- a/React/Fabric/Utils/RuntimeEventBeat.h
+++ b/React/Fabric/Utils/RuntimeEventBeat.h
@@ -7,7 +7,7 @@
 
 #include <CoreFoundation/CoreFoundation.h>
 #include <CoreFoundation/CFRunLoop.h>
-#include <fabric/uimanager/FabricUIManager.h>
+#include <fabric/uimanager/primitives.h>
 #include <fabric/events/EventBeat.h>
 
 namespace facebook {
diff --git a/ReactCommon/fabric/uimanager/ComponentDescriptorRegistry.cpp b/ReactCommon/fabric/uimanager/ComponentDescriptorRegistry.cpp
index c8c2851d2e8..680c0afd3a1 100644
--- a/ReactCommon/fabric/uimanager/ComponentDescriptorRegistry.cpp
+++ b/ReactCommon/fabric/uimanager/ComponentDescriptorRegistry.cpp
@@ -6,6 +6,7 @@
 #include "ComponentDescriptorRegistry.h"
 
 #include <fabric/core/ShadowNodeFragment.h>
+#include <fabric/uimanager/primitives.h>
 
 namespace facebook {
 namespace react {
@@ -80,25 +81,6 @@ static const std::string componentNameByReactViewName(std::string viewName) {
   return viewName;
 }
 
-static const RawProps rawPropsFromDynamic(const folly::dynamic object) {
-  // TODO: Convert this to something smarter, probably returning
-  // `std::iterator`.
-  RawProps result;
-
-  if (object.isNull()) {
-    return result;
-  }
-
-  assert(object.isObject());
-
-  for (const auto &pair : object.items()) {
-    assert(pair.first.isString());
-    result[pair.first.asString()] = pair.second;
-  }
-
-  return result;
-}
-
 SharedShadowNode ComponentDescriptorRegistry::createNode(
     Tag tag,
     const std::string &viewName,
diff --git a/ReactCommon/fabric/uimanager/JSIFabricUIManager.cpp b/ReactCommon/fabric/uimanager/JSIFabricUIManager.cpp
index 75149873664..dabfecb4542 100644
--- a/ReactCommon/fabric/uimanager/JSIFabricUIManager.cpp
+++ b/ReactCommon/fabric/uimanager/JSIFabricUIManager.cpp
@@ -2,6 +2,8 @@
 
 #include "JSIFabricUIManager.h"
 
+#include <fabric/uimanager/FabricUIManager.h>
+#include <fabric/uimanager/primitives.h>
 #include <fabric/core/ShadowNode.h>
 #include <fabric/uimanager/FabricUIManager.h>
 #include <jsi/JSIDynamic.h>
@@ -11,39 +13,7 @@ namespace react {
 
 namespace {
 
-struct EventTargetWrapper : public EventTarget {
-  EventTargetWrapper(jsi::WeakObject instanceHandle)
-      : instanceHandle(std::move(instanceHandle)) {}
-
-  mutable jsi::WeakObject instanceHandle;
-};
-
-struct EventHandlerWrapper : public EventHandler {
-  EventHandlerWrapper(jsi::Function eventHandler)
-      : callback(std::move(eventHandler)) {}
-
-  jsi::Function callback;
-};
-
-struct ShadowNodeWrapper : public jsi::HostObject {
-  ShadowNodeWrapper(SharedShadowNode shadowNode)
-      : shadowNode(std::move(shadowNode)) {}
-
-  SharedShadowNode shadowNode;
-};
-
-struct ShadowNodeListWrapper : public jsi::HostObject {
-  ShadowNodeListWrapper(SharedShadowNodeUnsharedList shadowNodeList)
-      : shadowNodeList(shadowNodeList) {}
-
-  SharedShadowNodeUnsharedList shadowNodeList;
-};
-
-jsi::Value createNode(
-    const UIManager &uiManager,
-    jsi::Runtime &runtime,
-    const jsi::Value *arguments,
-    size_t count) {
+jsi::Value createNode(const UIManager &uiManager, jsi::Runtime &runtime, const jsi::Value *arguments, size_t count) {
   auto reactTag = (Tag)arguments[0].getNumber();
   auto viewName = arguments[1].getString(runtime).utf8(runtime);
   auto rootTag = (Tag)arguments[2].getNumber();
diff --git a/ReactCommon/fabric/uimanager/Scheduler.h b/ReactCommon/fabric/uimanager/Scheduler.h
index 4961dad728f..fcc5e5b3b77 100644
--- a/ReactCommon/fabric/uimanager/Scheduler.h
+++ b/ReactCommon/fabric/uimanager/Scheduler.h
@@ -16,6 +16,7 @@
 #include <fabric/uimanager/ShadowTree.h>
 #include <fabric/uimanager/ShadowTreeDelegate.h>
 #include <fabric/uimanager/UIManagerDelegate.h>
+#include <fabric/uimanager/primitives.h>
 
 namespace facebook {
 namespace react {
diff --git a/ReactCommon/fabric/uimanager/primitives.h b/ReactCommon/fabric/uimanager/primitives.h
new file mode 100644
index 00000000000..7f7c4b8e119
--- /dev/null
+++ b/ReactCommon/fabric/uimanager/primitives.h
@@ -0,0 +1,62 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#pragma once
+
+#include <fabric/core/ShadowNode.h>
+#include <folly/dynamic.h>
+#include <jsi/JSIDynamic.h>
+#include <jsi/jsi.h>
+
+namespace facebook {
+namespace react {
+
+using RuntimeExecutor = std::function<void(
+    std::function<void(facebook::jsi::Runtime &runtime)> &&callback)>;
+
+inline RawProps rawPropsFromDynamic(const folly::dynamic object) noexcept {
+  RawProps result;
+
+  if (object.isNull()) {
+    return result;
+  }
+
+  assert(object.isObject());
+
+  for (const auto &pair : object.items()) {
+    assert(pair.first.isString());
+    result[pair.first.asString()] = pair.second;
+  }
+
+  return result;
+}
+
+struct EventTargetWrapper : public EventTarget {
+  EventTargetWrapper(jsi::WeakObject instanceHandle)
+      : instanceHandle(std::move(instanceHandle)) {}
+
+  mutable jsi::WeakObject instanceHandle;
+};
+
+struct EventHandlerWrapper : public EventHandler {
+  EventHandlerWrapper(jsi::Function eventHandler)
+      : callback(std::move(eventHandler)) {}
+
+  jsi::Function callback;
+};
+
+struct ShadowNodeWrapper : public jsi::HostObject {
+  ShadowNodeWrapper(SharedShadowNode shadowNode)
+      : shadowNode(std::move(shadowNode)) {}
+
+  SharedShadowNode shadowNode;
+};
+
+struct ShadowNodeListWrapper : public jsi::HostObject {
+  ShadowNodeListWrapper(SharedShadowNodeUnsharedList shadowNodeList)
+      : shadowNodeList(shadowNodeList) {}
+
+  SharedShadowNodeUnsharedList shadowNodeList;
+};
+
+} // namespace react
+} // namespace facebook