diff --git a/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake b/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake
index 691fc465922..05cb5a97bf3 100644
--- a/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake
+++ b/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake
@@ -34,9 +34,24 @@ set(BUILD_DIR ${PROJECT_BUILD_DIR})
 file(TO_CMAKE_PATH "${BUILD_DIR}" BUILD_DIR)
 file(TO_CMAKE_PATH "${REACT_ANDROID_DIR}" REACT_ANDROID_DIR)
 
-file(GLOB input_SRC CONFIGURE_DEPENDS
-        ${REACT_ANDROID_DIR}/cmake-utils/default-app-setup/*.cpp
-        ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
+if (PROJECT_ROOT_DIR)
+# This empty `if` is just to silence a CMake warning and make sure the `PROJECT_ROOT_DIR`
+# variable is defined if user need to access it.
+endif ()
+
+file(GLOB override_cpp_SRC CONFIGURE_DEPENDS *.cpp)
+# We check if the user is providing a custom OnLoad.cpp file. If so, we pick that
+# for compilation. Otherwise we fallback to using the `default-app-setup/OnLoad.cpp`
+# file instead.
+if(override_cpp_SRC)
+        file(GLOB input_SRC CONFIGURE_DEPENDS
+                *.cpp
+                ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
+else()
+        file(GLOB input_SRC CONFIGURE_DEPENDS
+                ${REACT_ANDROID_DIR}/cmake-utils/default-app-setup/*.cpp
+                ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
+endif()
 
 add_library(${CMAKE_PROJECT_NAME} SHARED ${input_SRC})