diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/BUCK b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/BUCK
new file mode 100644
index 000000000..ac6ce3d53
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/BUCK
@@ -0,0 +1,24 @@
+load("@xplat//ReactNative:DEFS.bzl", "react_native_dep", "react_native_target", "rn_android_library", "IS_OSS_BUILD")
+
+rn_android_library(
+    name = "jsc",
+    srcs = glob(["**/*.java"]),
+    exported_deps = [
+        react_native_dep("java/com/facebook/jni:jni"),
+        react_native_dep("java/com/facebook/proguard/annotations:annotations"),
+    ],
+    provided_deps = [
+        react_native_dep("third-party/android/support/v4:lib-support-v4"),
+    ],
+    required_for_source_only_abi = True,
+    visibility = [
+        "PUBLIC",
+    ],
+    deps = [
+        react_native_dep("libraries/soloader/java/com/facebook/soloader:soloader"),
+        react_native_dep("third-party/java/infer-annotations:infer-annotations"),
+        react_native_target("java/com/facebook/react/bridge:bridge"),
+        react_native_target("java/com/facebook/react/fabric:fabric"),
+        react_native_target("java/com/facebook/react/fabric/jsc/jni:jni"),
+    ],
+)
diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/FabricJSCBinding.java b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/FabricJSCBinding.java
new file mode 100644
index 000000000..ab7352f9e
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/FabricJSCBinding.java
@@ -0,0 +1,35 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+package com.facebook.react.fabric.jsc;
+
+import com.facebook.jni.HybridData;
+import com.facebook.proguard.annotations.DoNotStrip;
+import com.facebook.react.bridge.JavaScriptContextHolder;
+import com.facebook.react.fabric.FabricBinding;
+import com.facebook.react.fabric.FabricUIManager;
+import com.facebook.soloader.SoLoader;
+
+@DoNotStrip
+public class FabricJSCBinding implements FabricBinding {
+
+  static {
+    SoLoader.loadLibrary("fabricjscjni");
+  }
+
+  // used from native
+  @SuppressWarnings("unused")
+  private final HybridData mHybridData;
+
+  private static native HybridData initHybrid();
+
+  private native void installFabric(long jsContextNativePointer, Object fabricModule);
+
+  public FabricJSCBinding() {
+    mHybridData = initHybrid();
+  }
+
+  @Override
+  public void installFabric(JavaScriptContextHolder jsContext, FabricUIManager fabricModule) {
+    installFabric(jsContext.get(), fabricModule);
+  }
+}
diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/BUCK b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/BUCK
new file mode 100644
index 000000000..cbf088f2d
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/BUCK
@@ -0,0 +1,20 @@
+load("@xplat//ReactNative:DEFS.bzl", "react_native_target", "react_native_xplat_target", "rn_xplat_cxx_library", "FBJNI_TARGET", "ANDROID")
+
+rn_xplat_cxx_library(
+    name = "jni",
+    srcs = glob(["*.cpp"]),
+    headers = glob(["*.h"]),
+    compiler_flags = [
+        "-Wall",
+        "-fexceptions",
+        "-std=gnu++1y",
+    ],
+    platforms = ANDROID,
+    soname = "libfabricjscjni.$(ext)",
+    visibility = ["PUBLIC"],
+    deps = [
+        FBJNI_TARGET,
+        react_native_xplat_target("jschelpers:jschelpers"),
+        react_native_target("jni/react/jni:jni"),
+    ],
+)
diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/FabricJSCBinding.cpp b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/FabricJSCBinding.cpp
new file mode 100644
index 000000000..044143210
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/FabricJSCBinding.cpp
@@ -0,0 +1,296 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#include "FabricJSCBinding.h"
+#include <fb/fbjni.h>
+#include <react/jni/ReadableNativeMap.h>
+#include <jschelpers/JavaScriptCore.h>
+#include <jschelpers/Unicode.h>
+
+using namespace facebook::jni;
+
+namespace facebook {
+namespace react {
+
+namespace {
+
+bool useCustomJSC = false;
+
+struct JList : public JavaClass<JList> {
+  static constexpr auto kJavaDescriptor = "Ljava/util/List;";
+};
+
+struct JShadowNode : public JavaClass<JShadowNode> {
+  static constexpr auto kJavaDescriptor = "Lcom/facebook/react/uimanager/ReactShadowNode;";
+};
+
+typedef struct FabricJSCUIManager {
+  FabricJSCUIManager(alias_ref<jobject> module, JSClassRef classRef, bool customJSC)
+    : wrapperObjectClassRef(classRef)
+    , useCustomJSC(customJSC) {
+    fabricUiManager = make_global(module);
+  }
+  global_ref<jobject> fabricUiManager;
+  JSClassRef wrapperObjectClassRef;
+  bool useCustomJSC;
+} FabricJSCUIManager;
+
+jobject makePlainGlobalRef(jobject object) {
+  // When storing the global reference we need it to be a plain
+  // pointer. That's why we use plain jni instead of fbjni here.
+  return Environment::current()->NewGlobalRef(object);
+}
+
+local_ref<JString> JSValueToJString(JSContextRef ctx, JSValueRef value) {
+  JSStringRef strRef = JSC_JSValueToStringCopy(ctx, value, NULL);
+  const size_t size = JSStringGetMaximumUTF8CStringSize(strRef);
+  char buffer[size];
+  JSStringGetUTF8CString(strRef, buffer, size);
+  JSC_JSStringRelease(ctx, strRef);
+  return make_jstring(buffer);
+}
+
+local_ref<JShadowNode> JSValueToJShadowNode(JSContextRef ctx, JSValueRef value) {
+  JSObjectRef obj = JSC_JSValueToObject(ctx, value, NULL);
+  auto node = static_cast<JShadowNode::javaobject>(JSC_JSObjectGetPrivate(useCustomJSC, obj));
+  return make_local(node);
+}
+
+local_ref<JList> JSValueToJList(JSContextRef ctx, JSValueRef value) {
+  JSObjectRef obj = JSC_JSValueToObject(ctx, value, NULL);
+  auto node = static_cast<JList::javaobject>(JSC_JSObjectGetPrivate(useCustomJSC, obj));
+  return make_local(node);
+}
+
+local_ref<ReadableNativeMap::jhybridobject> JSValueToReadableMapViaJSON(JSContextRef ctx, JSValueRef value) {
+  JSStringRef jsonRef = JSC_JSValueCreateJSONString(ctx, value, 0, NULL);
+  size_t size = JSC_JSStringGetLength(ctx, jsonRef);
+  const JSChar* utf16 = JSC_JSStringGetCharactersPtr(ctx, jsonRef);
+  std::string json = unicode::utf16toUTF8(utf16, size);
+  JSC_JSStringRelease(ctx, jsonRef);
+  folly::dynamic dynamicValue = folly::parseJson(json);
+  return ReadableNativeMap::newObjectCxxArgs(std::move(dynamicValue));
+}
+
+JSValueRef createNode(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+  JSClassRef classRef = managerWrapper->wrapperObjectClassRef;
+
+  static auto createNode =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<alias_ref<JShadowNode>(jint, jstring, jint, ReadableNativeMap::javaobject)>("createNode");
+
+  int reactTag = (int)JSC_JSValueToNumber(ctx, arguments[0], NULL);
+  auto viewName = JSValueToJString(ctx, arguments[1]);
+  int rootTag = (int)JSC_JSValueToNumber(ctx, arguments[2], NULL);
+  auto props = JSC_JSValueIsNull(ctx, arguments[3]) ? local_ref<ReadableNativeMap::jhybridobject>(nullptr) :
+               JSValueToReadableMapViaJSON(ctx, arguments[3]);;
+
+  // TODO: Retain object in arguments[4] using a weak ref.
+
+  auto node = createNode(manager, reactTag, viewName.get(), rootTag, props.get());
+
+  return JSC_JSObjectMake(ctx, classRef, makePlainGlobalRef(node.get()));
+}
+
+JSValueRef cloneNode(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+  JSClassRef classRef = managerWrapper->wrapperObjectClassRef;
+
+  static auto cloneNode =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<alias_ref<JShadowNode>(JShadowNode::javaobject)>("cloneNode");
+
+  auto previousNode = JSValueToJShadowNode(ctx, arguments[0]);
+  auto newNode = cloneNode(manager, previousNode.get());
+
+  return JSC_JSObjectMake(ctx, classRef, makePlainGlobalRef(newNode.get()));
+}
+
+JSValueRef cloneNodeWithNewChildren(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+  JSClassRef classRef = managerWrapper->wrapperObjectClassRef;
+
+  static auto cloneNodeWithNewChildren =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<alias_ref<JShadowNode>(JShadowNode::javaobject)>("cloneNodeWithNewChildren");
+
+  auto previousNode = JSValueToJShadowNode(ctx, arguments[0]);
+  auto newNode = cloneNodeWithNewChildren(manager, previousNode.get());
+
+  return JSC_JSObjectMake(ctx, classRef, makePlainGlobalRef(newNode.get()));
+}
+
+JSValueRef cloneNodeWithNewProps(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+  JSClassRef classRef = managerWrapper->wrapperObjectClassRef;
+
+  static auto cloneNodeWithNewProps =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<alias_ref<JShadowNode>(JShadowNode::javaobject, ReadableNativeMap::javaobject)>("cloneNodeWithNewProps");
+
+  auto previousNode = JSValueToJShadowNode(ctx, arguments[0]);
+  auto props = JSValueToReadableMapViaJSON(ctx, arguments[1]);
+  auto newNode = cloneNodeWithNewProps(manager, previousNode.get(), props.get());
+
+  return JSC_JSObjectMake(ctx, classRef, makePlainGlobalRef(newNode.get()));
+}
+
+JSValueRef cloneNodeWithNewChildrenAndProps(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+  JSClassRef classRef = managerWrapper->wrapperObjectClassRef;
+
+  static auto cloneNodeWithNewChildrenAndProps =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<alias_ref<JShadowNode>(JShadowNode::javaobject, ReadableNativeMap::javaobject)>("cloneNodeWithNewChildrenAndProps");
+
+  auto previousNode = JSValueToJShadowNode(ctx, arguments[0]);
+  auto props = JSValueToReadableMapViaJSON(ctx, arguments[1]);
+  auto newNode = cloneNodeWithNewChildrenAndProps(manager, previousNode.get(), props.get());
+
+  return JSC_JSObjectMake(ctx, classRef, makePlainGlobalRef(newNode.get()));
+}
+
+JSValueRef appendChild(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+
+  static auto appendChild =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<void(JShadowNode::javaobject, JShadowNode::javaobject)>("appendChild");
+
+  auto parentNode = JSValueToJShadowNode(ctx, arguments[0]);
+  auto childNode = JSValueToJShadowNode(ctx, arguments[1]);
+
+  appendChild(manager, parentNode.get(), childNode.get());
+
+  return JSC_JSValueMakeUndefined(ctx);
+}
+
+JSValueRef createChildSet(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+  JSClassRef classRef = managerWrapper->wrapperObjectClassRef;
+
+  static auto createChildSet =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<alias_ref<JList>(jint)>("createChildSet");
+
+  int rootTag = (int)JSC_JSValueToNumber(ctx, arguments[0], NULL);
+  auto childSet = createChildSet(manager, rootTag);
+
+  return JSC_JSObjectMake(ctx, classRef, makePlainGlobalRef(childSet.get()));
+}
+
+JSValueRef appendChildToSet(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+
+  static auto appendChildToSet =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<void(JList::javaobject, JShadowNode::javaobject)>("appendChildToSet");
+
+  auto childSet = JSValueToJList(ctx, arguments[0]);
+  auto childNode = JSValueToJShadowNode(ctx, arguments[1]);
+
+  appendChildToSet(manager, childSet.get(), childNode.get());
+
+  return JSC_JSValueMakeUndefined(ctx);
+}
+
+JSValueRef completeRoot(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, function);
+  alias_ref<jobject> manager = managerWrapper->fabricUiManager;
+
+  static auto completeRoot =
+    jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
+      ->getMethod<void(jint, JList::javaobject)>("completeRoot");
+
+  int rootTag = (int)JSC_JSValueToNumber(ctx, arguments[0], NULL);
+  auto childSet = JSValueToJList(ctx, arguments[1]);
+
+  completeRoot(manager, rootTag, childSet.get());
+
+  return JSC_JSValueMakeUndefined(ctx);
+}
+
+void finalizeJNIObject(JSObjectRef object) {
+  // Release whatever global ref object we're storing here.
+  jobject globalRef = (jobject)JSC_JSObjectGetPrivate(useCustomJSC, object);
+  Environment::current()->DeleteGlobalRef(globalRef);
+}
+
+void finalizeWrapper(JSObjectRef object) {
+  FabricJSCUIManager *managerWrapper = (FabricJSCUIManager *)JSC_JSObjectGetPrivate(useCustomJSC, object);
+  delete managerWrapper;
+}
+
+void addFabricMethod(
+  JSContextRef context,
+  jni::alias_ref<jobject> fabricModule,
+  JSClassRef nodeClassRef,
+  JSObjectRef module,
+  const char *name,
+  JSObjectCallAsFunctionCallback callback
+) {
+  JSClassDefinition definition = kJSClassDefinitionEmpty;
+  definition.callAsFunction = callback;
+  definition.finalize = finalizeWrapper;
+  JSClassRef classRef = JSC_JSClassCreate(useCustomJSC, &definition);
+  FabricJSCUIManager *managerWrapper = new FabricJSCUIManager(fabricModule, nodeClassRef, useCustomJSC);
+  JSObjectRef functionRef = JSC_JSObjectMake(context, classRef, managerWrapper);
+  JSC_JSClassRelease(useCustomJSC, classRef);
+
+  JSStringRef nameStr = JSC_JSStringCreateWithUTF8CString(context, name);
+  JSC_JSObjectSetProperty(context, module, nameStr, functionRef, kJSPropertyAttributeNone, NULL);
+  JSC_JSStringRelease(context, nameStr);
+}
+
+}
+
+jni::local_ref<FabricJSCBinding::jhybriddata> FabricJSCBinding::initHybrid(
+    jni::alias_ref<jclass>) {
+  return makeCxxInstance();
+}
+
+void FabricJSCBinding::installFabric(jlong jsContextNativePointer,
+    jni::alias_ref<jobject> fabricModule) {
+  JSContextRef context = (JSContextRef)jsContextNativePointer;
+  useCustomJSC = facebook::react::isCustomJSCPtr(context);
+
+  JSObjectRef module = JSC_JSObjectMake(context, NULL, NULL);
+
+  // Class definition for wrapper objects around nodes and sets
+  JSClassDefinition definition = kJSClassDefinitionEmpty;
+  definition.finalize = finalizeJNIObject;
+  JSClassRef classRef = JSC_JSClassCreate(useCustomJSC, &definition);
+
+  addFabricMethod(context, fabricModule, classRef, module, "createNode", createNode);
+  addFabricMethod(context, fabricModule, classRef, module, "cloneNode", cloneNode);
+  addFabricMethod(context, fabricModule, classRef, module, "cloneNodeWithNewChildren", cloneNodeWithNewChildren);
+  addFabricMethod(context, fabricModule, classRef, module, "cloneNodeWithNewProps", cloneNodeWithNewProps);
+  addFabricMethod(context, fabricModule, classRef, module, "cloneNodeWithNewChildrenAndProps", cloneNodeWithNewChildrenAndProps);
+  addFabricMethod(context, fabricModule, classRef, module, "appendChild", appendChild);
+  addFabricMethod(context, fabricModule, classRef, module, "createChildSet", createChildSet);
+  addFabricMethod(context, fabricModule, classRef, module, "appendChildToSet", appendChildToSet);
+  addFabricMethod(context, fabricModule, classRef, module, "completeRoot", completeRoot);
+
+  JSObjectRef globalObject = JSC_JSContextGetGlobalObject(context);
+  JSStringRef globalName = JSC_JSStringCreateWithUTF8CString(context, "nativeFabricUIManager");
+  JSC_JSObjectSetProperty(context, globalObject, globalName, module, kJSPropertyAttributeNone, NULL);
+  JSC_JSStringRelease(context, globalName);
+}
+
+void FabricJSCBinding::registerNatives() {
+  registerHybrid({
+    makeNativeMethod("initHybrid", FabricJSCBinding::initHybrid),
+    makeNativeMethod("installFabric", FabricJSCBinding::installFabric),
+  });
+}
+
+}
+}
diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/FabricJSCBinding.h b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/FabricJSCBinding.h
new file mode 100644
index 000000000..e23c9524e
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/FabricJSCBinding.h
@@ -0,0 +1,29 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#pragma once
+
+#include <memory>
+#include <fb/fbjni.h>
+
+namespace facebook {
+namespace react {
+
+class Instance;
+
+class FabricJSCBinding : public jni::HybridClass<FabricJSCBinding> {
+public:
+  constexpr static const char *const kJavaDescriptor =
+    "Lcom/facebook/react/fabric/jsc/FabricJSCBinding;";
+
+  static void registerNatives();
+
+private:
+
+  static jni::local_ref<jhybriddata> initHybrid(jni::alias_ref<jclass>);
+
+  void installFabric(jlong jsContextNativePointer, jni::alias_ref<jobject> fabricModule);
+
+};
+
+}
+}
diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/OnLoad.cpp b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/OnLoad.cpp
new file mode 100644
index 000000000..1ca90c4e9
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/jsc/jni/OnLoad.cpp
@@ -0,0 +1,12 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#include <fb/fbjni.h>
+#include <fb/xplat_init.h>
+
+#include "FabricJSCBinding.h"
+
+JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *) {
+  return facebook::xplat::initialize(vm, [] {
+    facebook::react::FabricJSCBinding::registerNatives();
+  });
+}