diff --git a/.gitignore b/.gitignore
index 6250ebcc4a8737..fadf52a7f1c187 100644
--- a/.gitignore
+++ b/.gitignore
@@ -122,6 +122,7 @@ package-lock.json
 /sdks/download
 /sdks/hermes
 /sdks/hermesc
+/sdks/hermes-engine/build_host_hermesc
 
 # Visual studio
 .vscode
diff --git a/ReactCommon/hermes/React-hermes.podspec b/ReactCommon/hermes/React-hermes.podspec
index 0b6432596c828b..1a33547c2c43e3 100644
--- a/ReactCommon/hermes/React-hermes.podspec
+++ b/ReactCommon/hermes/React-hermes.podspec
@@ -40,7 +40,7 @@ Pod::Spec.new do |s|
   s.public_header_files    = "executor/HermesExecutorFactory.h"
   s.compiler_flags         = folly_compiler_flags + ' ' + boost_compiler_flags
   s.pod_target_xcconfig    = {
-                               "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)/..\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/RCT-Folly\" \"$(PODS_ROOT)/DoubleConversion\" \"$(PODS_ROOT)/libevent/include\""
+                               "HEADER_SEARCH_PATHS" => "\"${PODS_ROOT}/hermes-engine/destroot/include\" \"$(PODS_TARGET_SRCROOT)/..\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/RCT-Folly\" \"$(PODS_ROOT)/DoubleConversion\" \"$(PODS_ROOT)/libevent/include\""
                              }.merge!(build_type == :debug ? { "GCC_PREPROCESSOR_DEFINITIONS" => "HERMES_ENABLE_DEBUGGER=1" } : {})
   s.header_dir             = "reacthermes"
   s.dependency "React-cxxreact", version
diff --git a/packages/rn-tester/Podfile.lock b/packages/rn-tester/Podfile.lock
index 4ed5001f3daf9f..db2169f72cc96d 100644
--- a/packages/rn-tester/Podfile.lock
+++ b/packages/rn-tester/Podfile.lock
@@ -73,7 +73,13 @@ PODS:
     - FlipperKit/FlipperKitNetworkPlugin
   - fmt (6.2.1)
   - glog (0.3.5)
-  - hermes-engine (1000.0.0)
+  - hermes-engine (1000.0.0):
+    - hermes-engine/Hermes (= 1000.0.0)
+    - hermes-engine/JSI (= 1000.0.0)
+    - hermes-engine/Public (= 1000.0.0)
+  - hermes-engine/Hermes (1000.0.0)
+  - hermes-engine/JSI (1000.0.0)
+  - hermes-engine/Public (1000.0.0)
   - libevent (2.1.12)
   - OpenSSL-Universal (1.1.1100)
   - RCT-Folly (2021.07.22.00):
@@ -933,7 +939,7 @@ SPEC CHECKSUMS:
   CocoaAsyncSocket: 065fd1e645c7abab64f7a6a2007a48038fdc6a99
   DoubleConversion: 5189b271737e1565bdce30deb4a08d647e3f5f54
   FBLazyVector: 19e408e76fa9258dd32191a50d60c41444f52d29
-  FBReactNativeSpec: 27a89a8eea1b441a73a78f420dd18dad3ed13723
+  FBReactNativeSpec: 9761d52cf2d3727e2557fbf4014c514909d76b6b
   Flipper: 26fc4b7382499f1281eb8cb921e5c3ad6de91fe0
   Flipper-Boost-iOSX: fd1e2b8cbef7e662a122412d7ac5f5bea715403c
   Flipper-DoubleConversion: 2dc99b02f658daf147069aad9dbd29d8feb06d30
@@ -945,7 +951,7 @@ SPEC CHECKSUMS:
   FlipperKit: cbdee19bdd4e7f05472a66ce290f1b729ba3cb86
   fmt: ff9d55029c625d3757ed641535fd4a75fedc7ce9
   glog: 04b94705f318337d7ead9e6d17c019bd9b1f6b1b
-  hermes-engine: cd15ebd246edff3a995ec666e898dd1cbdcaa10d
+  hermes-engine: 445a2267b04cb39ca4a0b2d6758b5a0e5a58ccad
   libevent: 4049cae6c81cdb3654a443be001fb9bdceff7913
   OpenSSL-Universal: ebc357f1e6bc71fa463ccb2fe676756aff50e88c
   RCT-Folly: 424b8c9a7a0b9ab2886ffe9c3b041ef628fd4fb1
@@ -960,7 +966,7 @@ SPEC CHECKSUMS:
   React-cxxreact: ebed982230716c3515ab2f435cb13aec8a56af02
   React-Fabric: 141459e61c825acf02d26ece099acbd9cbd87b99
   React-graphics: 2dda97baebb0082bb85499c862c3f269a194f416
-  React-hermes: 0a5145bae4207edf0def8e28fbcb6a8fd6e806c2
+  React-hermes: 4912383b4f062173cb623e570ead70ab380f7bef
   React-jsi: c24dbcfdf7ea075138b73372387c7f17c0db56ef
   React-jsidynamic: 2b14ac1b6d3a1b7daa1e5a424b98de87da981698
   React-jsiexecutor: 14e899380e3fe9ca74c4e19727540a03e7574721
diff --git a/scripts/cocoapods/jsengine.rb b/scripts/cocoapods/jsengine.rb
index 8ec69c59f0bafd..b5f549f753300a 100644
--- a/scripts/cocoapods/jsengine.rb
+++ b/scripts/cocoapods/jsengine.rb
@@ -34,3 +34,23 @@ def setup_hermes!(react_native_path: "../node_modules/react-native", fabric_enab
     pod 'React-hermes', :path => "#{react_native_path}/ReactCommon/hermes"
     pod 'libevent', '~> 2.1.12'
 end
+
+def add_copy_hermes_framework_script_phase(installer, react_native_path)
+    utils_dir = File.join(react_native_path, "sdks", "hermes-engine", "utils")
+    phase_name = "[RN]Copy Hermes framework"
+    project = installer.generated_aggregate_targets.first.user_project
+    target = project.targets.first
+    if target.shell_script_build_phases.none? { |phase| phase.name == phase_name }
+        phase = target.new_shell_script_build_phase(phase_name)
+        phase.shell_script = ". #{utils_dir}/copy-hermes-xcode.sh"
+        project.save()
+    end
+end
+
+def remove_copy_hermes_framework_script_phase(installer, react_native_path)
+    utils_dir = File.join(react_native_path, "sdks", "hermes-engine", "utils")
+    phase_name = "[RN]Copy Hermes framework"
+    project = installer.generated_aggregate_targets.first.user_project
+    project.targets.first.shell_script_build_phases.delete_if { |phase| phase.name == phase_name }
+    project.save()
+end
diff --git a/scripts/react_native_pods.rb b/scripts/react_native_pods.rb
index 73b44c12bab708..6d6df22fe35e6c 100644
--- a/scripts/react_native_pods.rb
+++ b/scripts/react_native_pods.rb
@@ -203,6 +203,12 @@ def react_native_post_install(installer, react_native_path = "../node_modules/re
     flipper_post_install(installer)
   end
 
+  if ReactNativePodsUtils.has_pod(installer, 'hermes-engine') && ENV['HERMES_BUILD_FROM_SOURCE'] == "1"
+    add_copy_hermes_framework_script_phase(installer, react_native_path)
+  else
+    remove_copy_hermes_framework_script_phase(installer, react_native_path)
+  end
+
   ReactNativePodsUtils.exclude_i386_architecture_while_using_hermes(installer)
   ReactNativePodsUtils.fix_library_search_paths(installer)
   ReactNativePodsUtils.fix_react_bridging_header_search_paths(installer)
diff --git a/sdks/hermes-engine/hermes-engine.podspec b/sdks/hermes-engine/hermes-engine.podspec
index 810d8ab2a91267..6761738c6d7adf 100644
--- a/sdks/hermes-engine/hermes-engine.podspec
+++ b/sdks/hermes-engine/hermes-engine.podspec
@@ -19,9 +19,6 @@ version = package['version']
 hermestag_file = File.join(react_native_path, "sdks", ".hermesversion")
 isInCI = ENV['CI'] == true
 
-# sdks/hermesc/osx-bin/ImportHermesc.cmake
-import_hermesc_file=File.join(react_native_path, "sdks", "hermesc", "osx-bin", "ImportHermesc.cmake")
-
 source = {}
 git = "https://github.com/facebook/hermes.git"
 
@@ -32,7 +29,7 @@ if ENV.has_key?('HERMES_ENGINE_TARBALL_PATH')
   Pod::UI.puts '[Hermes] Using pre-built Hermes binaries from local path.' if Object.const_defined?("Pod::UI")
   source[:http] = "file://#{ENV['HERMES_ENGINE_TARBALL_PATH']}"
 elsif isInMain
-  Pod::UI.puts '[Hermes] Installing hermes-engine may take a while, building Hermes from source...'.yellow if Object.const_defined?("Pod::UI")
+  Pod::UI.puts '[Hermes] Installing hermes-engine may take slightly longer, building Hermes compiler from source...'.yellow if Object.const_defined?("Pod::UI")
   source[:git] = git
   source[:commit] = `git ls-remote https://github.com/facebook/hermes main | cut -f 1`.strip
 elsif isNightly
@@ -62,42 +59,80 @@ Pod::Spec.new do |spec|
   spec.source      = source
   spec.platforms   = { :osx => "10.13", :ios => "12.4" }
 
-  spec.preserve_paths      = ["destroot/bin/*"].concat(build_type == :debug ? ["**/*.{h,c,cpp}"] : [])
-  spec.source_files        = "destroot/include/**/*.h"
-  spec.exclude_files       = [
-                               "destroot/include/jsi/jsi/JSIDynamic.{h,cpp}",
-                               "destroot/include/jsi/jsi/jsilib-*.{h,cpp}",
-                             ]
-  spec.header_mappings_dir = "destroot/include"
-
-  spec.ios.vendored_frameworks = "destroot/Library/Frameworks/universal/hermes.xcframework"
-  spec.osx.vendored_frameworks = "destroot/Library/Frameworks/macosx/hermes.framework"
+  spec.preserve_paths      = '**/*.*'
+  spec.source_files        = ''
 
   spec.xcconfig = {
                     "CLANG_CXX_LANGUAGE_STANDARD" => "c++17",
                     "CLANG_CXX_LIBRARY" => "compiler-default"
                   }.merge!(build_type == :debug ? { "GCC_PREPROCESSOR_DEFINITIONS" => "HERMES_ENABLE_DEBUGGER=1" } : {})
 
-  if source[:git] then
-    ENV['REACT_NATIVE_PATH'] = react_native_path
-    hermes_utils_path = "/sdks/hermes-engine/utils"
-
-    spec.prepare_command = <<-EOS
-    export BUILD_TYPE=#{build_type.to_s.capitalize}
-    export RELEASE_VERSION="#{version}"
-    export IOS_DEPLOYMENT_TARGET="#{spec.deployment_target('ios')}"
-    export MAC_DEPLOYMENT_TARGET="#{spec.deployment_target('osx')}"
-    export JSI_PATH="$REACT_NATIVE_PATH/ReactCommon/jsi"
-
-    # Set HERMES_OVERRIDE_HERMESC_PATH if pre-built HermesC is available
-    #{File.exist?(import_hermesc_file) ? "export HERMES_OVERRIDE_HERMESC_PATH=#{import_hermesc_file}" : ""}
-    #{File.exist?(import_hermesc_file) ? "echo \"Overriding HermesC path...\"" : ""}
-
-    # Build iOS framework
-    $REACT_NATIVE_PATH#{hermes_utils_path}/build-ios-framework.sh
-
-    # Build Mac framework
-    $REACT_NATIVE_PATH#{hermes_utils_path}/build-mac-framework.sh
-    EOS
+  if source[:http] then
+
+    spec.subspec 'Pre-built' do |ss|
+      ss.preserve_paths = ["destroot/bin/*"].concat(build_type == :debug ? ["**/*.{h,c,cpp}"] : [])
+      ss.source_files = "destroot/include/**/*.h"
+      ss.exclude_files = ["destroot/include/jsi/jsi/JSIDynamic.{h,cpp}", "destroot/include/jsi/jsi/jsilib-*.{h,cpp}"]
+      ss.header_mappings_dir = "destroot/include"
+      ss.ios.vendored_frameworks = "destroot/Library/Frameworks/universal/hermes.xcframework"
+      ss.osx.vendored_frameworks = "destroot/Library/Frameworks/macosx/hermes.framework"
+    end
+
+  elsif source[:git] then
+
+    ENV['HERMES_BUILD_FROM_SOURCE'] = "1"
+
+    spec.subspec 'Hermes' do |ss|
+      ss.source_files = ''
+      ss.public_header_files = 'API/hermes/*.h'
+      ss.header_dir = 'hermes'
+    end
+
+    spec.subspec 'JSI' do |ss|
+      ss.source_files = ''
+      ss.public_header_files = 'API/jsi/jsi/*.h'
+      ss.header_dir = 'jsi'
+    end
+
+    spec.subspec 'Public' do |ss|
+      ss.source_files = ''
+      ss.public_header_files = 'public/hermes/Public/*.h'
+      ss.header_dir = 'hermes/Public'
+    end
+
+    hermesc_path = ""
+
+    if ENV.has_key?('HERMES_OVERRIDE_HERMESC_PATH') && File.exist?(ENV['HERMES_OVERRIDE_HERMESC_PATH']) then
+      hermesc_path = ENV['HERMES_OVERRIDE_HERMESC_PATH']
+    else
+      # Keep hermesc_path synchronized with .gitignore entry.
+      ENV['REACT_NATIVE_PATH'] = react_native_path
+      hermesc_path = "${REACT_NATIVE_PATH}/sdks/hermes-engine/build_host_hermesc"
+      spec.prepare_command = ". #{react_native_path}/sdks/hermes-engine/utils/build-hermesc-xcode.sh #{hermesc_path}"
+    end
+
+    spec.user_target_xcconfig = {
+      'FRAMEWORK_SEARCH_PATHS' => '"$(PODS_ROOT)/hermes-engine/destroot/Library/Frameworks/iphoneos" ' +
+                                  '"$(PODS_ROOT)/hermes-engine/destroot/Library/Frameworks/iphonesimulator" ' +
+                                  '"$(PODS_ROOT)/hermes-engine/destroot/Library/Frameworks/macosx" ' +
+                                  '"$(PODS_ROOT)/hermes-engine/destroot/Library/Frameworks/catalyst"',
+      'OTHER_LDFLAGS' => '-framework "hermes"',
+      'HERMES_CLI_PATH' => "#{hermesc_path}/bin/hermesc"
+    }
+
+    spec.script_phases = [
+      {
+        :name => 'Build Hermes',
+        :script => <<-EOS
+        . ${PODS_ROOT}/../.xcode.env
+        export CMAKE_BINARY=${CMAKE_BINARY:-#{%x(command -v cmake | tr -d '\n')}}
+        . ${REACT_NATIVE_PATH}/sdks/hermes-engine/utils/build-hermes-xcode.sh #{version} #{hermesc_path}/ImportHermesc.cmake
+        EOS
+      },
+      {
+        :name => 'Copy Hermes Framework',
+        :script => ". ${REACT_NATIVE_PATH}/sdks/hermes-engine/utils/copy-hermes-xcode.sh"
+      }
+    ]
   end
 end
diff --git a/sdks/hermes-engine/utils/build-hermes-xcode.sh b/sdks/hermes-engine/utils/build-hermes-xcode.sh
new file mode 100644
index 00000000000000..0ef2da262461f2
--- /dev/null
+++ b/sdks/hermes-engine/utils/build-hermes-xcode.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+set -x
+
+release_version="$1"; shift
+hermesc_path="$1"; shift
+
+build_cli_tools="false"
+if [[ "$PLATFORM_NAME" == macosx ]]; then
+  build_cli_tools="true"
+fi
+
+enable_debugger="false"
+if [[ "$CONFIGURATION" == "Debug" ]]; then
+  enable_debugger="true"
+fi
+
+deployment_target=${IPHONEOS_DEPLOYMENT_TARGET}
+if [ -z "$deployment_target" ]; then
+  deployment_target=${MACOSX_DEPLOYMENT_TARGET}
+fi
+
+architectures=$( echo "$ARCHS" | tr  " " ";" )
+
+echo "Configure Apple framework"
+
+"$CMAKE_BINARY" \
+  -S "${PODS_ROOT}/hermes-engine" \
+  -B "${PODS_ROOT}/hermes-engine/build/${PLATFORM_NAME}" \
+  -DHERMES_APPLE_TARGET_PLATFORM:STRING="$PLATFORM_NAME" \
+  -DCMAKE_OSX_ARCHITECTURES:STRING="$architectures" \
+  -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING="$deployment_target" \
+  -DHERMES_ENABLE_DEBUGGER:BOOLEAN="$enable_debugger" \
+  -DHERMES_ENABLE_INTL:BOOLEAN=true \
+  -DHERMES_ENABLE_LIBFUZZER:BOOLEAN=false \
+  -DHERMES_ENABLE_FUZZILLI:BOOLEAN=false \
+  -DHERMES_ENABLE_TEST_SUITE:BOOLEAN=false \
+  -DHERMES_ENABLE_BITCODE:BOOLEAN=false \
+  -DHERMES_BUILD_APPLE_FRAMEWORK:BOOLEAN=true \
+  -DHERMES_BUILD_APPLE_DSYM:BOOLEAN=true \
+  -DHERMES_ENABLE_TOOLS:BOOLEAN="$build_cli_tools" \
+  -DIMPORT_HERMESC:PATH="${hermesc_path}" \
+  -DHERMES_RELEASE_VERSION="for RN $release_version" \
+  -DCMAKE_INSTALL_PREFIX:PATH="${PODS_ROOT}/hermes-engine/destroot" \
+  -DCMAKE_BUILD_TYPE="$CONFIGURATION"
+
+echo "Build Apple framework"
+
+"$CMAKE_BINARY" \
+  --build "${PODS_ROOT}/hermes-engine/build/${PLATFORM_NAME}" \
+  --target "install/strip" \
+  -j "$(sysctl -n hw.ncpu)"
diff --git a/sdks/hermes-engine/utils/build-hermesc-xcode.sh b/sdks/hermes-engine/utils/build-hermesc-xcode.sh
new file mode 100644
index 00000000000000..59de6a74e9a3f6
--- /dev/null
+++ b/sdks/hermes-engine/utils/build-hermesc-xcode.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+set -x
+
+hermesc_dir_path="$1"
+
+CMAKE_BINARY=${CMAKE_BINARY:-cmake}
+
+if ! "$CMAKE_BINARY" -S . -B "$hermesc_dir_path"
+then
+    echo "Failed to configure Hermesc cmake project."
+    exit 1
+fi
+if ! "$CMAKE_BINARY" --build "$hermesc_dir_path" --target hermesc -j "$(sysctl -n hw.ncpu)"
+then
+    echo "Failed to build Hermesc cmake project."
+    exit 1
+fi
diff --git a/sdks/hermes-engine/utils/copy-hermes-xcode.sh b/sdks/hermes-engine/utils/copy-hermes-xcode.sh
new file mode 100644
index 00000000000000..62cc99c064a72f
--- /dev/null
+++ b/sdks/hermes-engine/utils/copy-hermes-xcode.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+set -x
+
+source="${PODS_ROOT}/hermes-engine/destroot/Library/Frameworks/${PLATFORM_NAME}/hermes.framework"
+
+if [[ ! -f "$source" ]]; then
+    cp -R "$source" "${PODS_XCFRAMEWORKS_BUILD_DIR}/hermes/hermes.framework"
+    cp -R "$source" "${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+fi