diff --git a/.circleci/config.yml b/.circleci/config.yml
index d976fcb36bd..8baae24f1b8 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,352 +2,15 @@ version: 2.1
 
 orbs:
   win: circleci/windows@2.4.0
-  android: circleci/android@2.0.3
-  node: circleci/node@4.7.0
 
 workflows:
   version: 2
   build:
     jobs:
-      - android
-      - linux
-      - macos
-      - build-apple-runtime
-      - test-macos
-      - test-apple-runtime:
-          requires:
-            - build-apple-runtime
-      - package-apple-runtime:
-          requires:
-            - test-macos
-            - test-apple-runtime
       - windows
-      - npm:
-          requires:
-            - android
-            - linux
-            - package-apple-runtime
-            - windows
-            - macos
-      - emscripten
-      - sandbox
-      - test-linux
       - test-windows
-      - test-e2e
-      - test-e2e-intl
-      - test-macos-test262
-
-# Default settings for Apple jobs (apple-runtime, test-apple-runtime)
-apple_defaults: &apple_defaults
-  macos:
-    xcode: 15.3
-  resource_class: macos.m1.medium.gen1
-  working_directory: ~/hermes
-  environment:
-    - TERM: dumb
-    - HERMES_WS_DIR: /tmp/hermes
-    # Homebrew currently breaks while updating:
-    # https://discuss.circleci.com/t/brew-install-fails-while-updating/32992
-    - HOMEBREW_NO_AUTO_UPDATE: 1
 
 jobs:
-  android:
-    executor:
-      name: android/android-machine
-      tag: 2024.01.1
-    working_directory: /home/circleci
-    environment:
-      HERMES_WS_DIR: /home/circleci
-    steps:
-      - run:
-          name: Set up workspace and install dependencies
-          command: |
-            yes | sdkmanager "cmake;3.22.1" &
-            sudo apt update && sudo apt install -y libicu-dev
-      - checkout:
-          path: hermes
-      - run:
-          name: Build Hermes Compiler
-          command: |
-            cmake -S hermes -B build
-            # Build the Hermes compiler so that the cross compiler build can
-            # access it to build the VM
-            cmake --build ./build --target hermesc -j 4
-      - run:
-          name: Build Hermes for Android
-          command: |
-            cd hermes/android
-            ./gradlew githubRelease
-      - run:
-          name: Copy artifacts
-          command: |
-            mkdir output
-            cp build_android/distributions/hermes-runtime-android-*.tar.gz output
-      - run:
-          name: Checksum artifacts
-          command: |
-            cd output
-            for file in *
-            do
-              sha256sum "$file" > "$file.sha256"
-            done
-      - store_artifacts:
-          path: output
-      - persist_to_workspace:
-          root: output
-          paths:
-            - .
-
-  linux:
-    docker:
-      - image: debian:bullseye
-    working_directory: /root
-    steps:
-      - run:
-          name: Install dependencies
-          command: |
-            apt update
-            apt install -y git openssh-client cmake build-essential \
-                libreadline-dev libicu-dev zip python3
-      - checkout:
-          path: hermes
-      - run:
-          name: Build linux CLI
-          command: |
-            cmake -S hermes -B build_hdb -DHERMES_STATIC_LINK=ON -DCMAKE_BUILD_TYPE=Release \
-              -DCMAKE_CXX_FLAGS=-s -DCMAKE_C_FLAGS=-s \
-              -DCMAKE_EXE_LINKER_FLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive"
-            cmake -S hermes -B build -DHERMES_STATIC_LINK=ON -DCMAKE_BUILD_TYPE=Release \
-              -DCMAKE_CXX_FLAGS=-s -DCMAKE_C_FLAGS=-s \
-              -DCMAKE_EXE_LINKER_FLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive" \
-              -DHERMES_ENABLE_DEBUGGER=False
-            cmake --build build_hdb --target hdb
-            cmake --build build --target check-hermes hermes hvm hbcdump hermesc
-      - run:
-          name: Create CLI tarball
-          environment:
-            TAR_NAME: hermes-cli-linux.tar.gz
-          command: |
-            mkdir output staging
-            cp build/bin/hermes build/bin/hvm build/bin/hbcdump \
-              build/bin/hermesc build_hdb/bin/hdb staging
-            tar -C staging -czvf output/${TAR_NAME} .
-            shasum -a 256 output/${TAR_NAME} > output/${TAR_NAME}.sha256
-      - store_artifacts:
-          path: output
-      - persist_to_workspace:
-          root: output
-          paths:
-            - .
-
-  test-linux:
-    docker:
-      - image: debian:bullseye
-    working_directory: /root
-    steps:
-      - run:
-          name: Install dependencies
-          command: |
-            apt update
-            apt install -y git openssh-client cmake build-essential \
-                libicu-dev zip python3
-      - checkout:
-          path: hermes
-      - run:
-          name: Run Hermes regression tests
-          command: |
-            cmake -S hermes -B build
-            cmake --build build --target check-hermes all -j 4
-
-  test-apple-runtime:
-    <<: *apple_defaults
-    steps:
-      - checkout
-      - restore_cache:
-          key: v4-repo-{{ .Environment.CIRCLE_SHA1 }}
-      - run:
-          name: Install dependencies
-          command: |
-            brew install ninja
-            # TODO: See comment in build-apple-runtime.
-            brew update
-            brew install cmake
-      - run:
-          name: Build the test application
-          command: |
-            pod install
-          working_directory: test/ApplePlatformsIntegrationTestApp
-      - run:
-          name: Test MacOS application
-          command: |
-            xcodebuild test \
-              -workspace ApplePlatformsIntegrationTests.xcworkspace \
-              -configuration Debug \
-              -destination 'platform=macOS' \
-              -scheme ApplePlatformsIntegrationMacTests
-          working_directory: test/ApplePlatformsIntegrationTestApp
-      - run:
-          name: Test iPhone application
-          command: |
-            xcodebuild test \
-              -workspace ApplePlatformsIntegrationTests.xcworkspace \
-              -configuration Debug \
-              -destination 'platform=iOS Simulator,name=iPhone 15' \
-              -scheme ApplePlatformsIntegrationMobileTests
-          working_directory: test/ApplePlatformsIntegrationTestApp
-      - run:
-          name: Test Apple Vision application
-          command: |
-            xcodebuild test \
-              -workspace ApplePlatformsIntegrationTests.xcworkspace \
-              -configuration Debug \
-              -destination 'platform=visionOS Simulator,name=Apple Vision Pro' \
-              -scheme ApplePlatformsIntegrationVisionOSTests
-          working_directory: test/ApplePlatformsIntegrationTestApp
-      - run:
-          name: Test Apple TV application
-          command: |
-            xcodebuild test \
-              -workspace ApplePlatformsIntegrationTests.xcworkspace \
-              -configuration Debug \
-              -destination 'platform=tvOS Simulator,name=Apple TV' \
-              -scheme ApplePlatformsIntegrationTVOSTests
-          working_directory: test/ApplePlatformsIntegrationTestApp
-
-  build-apple-runtime:
-    <<: *apple_defaults
-    steps:
-      - checkout
-      # TODO: Use a better cache key to avoid rebuilding whole framework
-      # when it is not necessary
-      - restore_cache:
-          key: v4-repo-{{ .Environment.CIRCLE_SHA1 }}
-      - run:
-          name: Set up workspace
-          command: mkdir -p /tmp/hermes/output
-      - run:
-          name: Install dependencies
-          command: |
-            brew install ninja
-            sudo gem install cocoapods
-            # TODO: Building for Apple Vision Pro requires a newer version of
-            # CMake than is available by default. Remove "brew update" once the
-            # CircleCI image contains CMake > 3.29.2.
-            brew update
-            brew install cmake
-      - run:
-          name: Build the iOS frameworks
-          command: ./utils/build-ios-framework.sh
-      - run:
-          name: Build the Mac frameworks
-          command: ./utils/build-mac-framework.sh
-      - save_cache:
-          key: v4-repo-{{ .Environment.CIRCLE_SHA1 }}
-          paths:
-            - ~/hermes/build_iphoneos
-            - ~/hermes/build_catalyst
-            - ~/hermes/build_iphonesimulator
-            - ~/hermes/build_macosx
-            - ~/hermes/build_xros
-            - ~/hermes/build_xrsimulator
-            - ~/hermes/destroot
-
-  package-apple-runtime:
-    <<: *apple_defaults
-    steps:
-      - checkout
-      - restore_cache:
-          key: v4-repo-{{ .Environment.CIRCLE_SHA1 }}
-      - run:
-          name: Set up workspace
-          command: mkdir -p /tmp/hermes/output
-      - run:
-          name: Install dependencies
-          command: |
-            sudo gem install cocoapods
-            # TODO: See comment in build-apple-runtime.
-            brew update
-            brew install cmake
-      - run:
-          name: Package the framework
-          command: |
-            . ./utils/build-apple-framework.sh
-
-            mkdir -p /tmp/cocoapods-package-root/destroot
-            cp -R ./destroot /tmp/cocoapods-package-root
-            cp hermes-engine.podspec LICENSE /tmp/cocoapods-package-root
-
-            tar -C /tmp/cocoapods-package-root/ -czvf /tmp/hermes/output/hermes-runtime-darwin-v$(get_release_version).tar.gz .
-      - run:
-          name: Checksum artifacts
-          command: |
-            cd /tmp/hermes/output
-            for file in *
-            do
-              shasum -a 256 "$file" > "$file.sha256"
-            done
-      - store_artifacts:
-          path: /tmp/hermes/output/
-      - persist_to_workspace:
-          root: /tmp/hermes/output/
-          paths:
-            - .
-
-  macos:
-    macos:
-      xcode: 13.4.1
-    steps:
-      - checkout:
-          path: hermes
-      - run:
-          name: Install dependencies
-          command: |
-            brew install cmake ninja
-      - run:
-          name: Build macOS CLI
-          environment:
-            RELEASE_FLAGS: >-
-              -DCMAKE_BUILD_TYPE=Release -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=True -DCMAKE_OSX_ARCHITECTURES=x86_64;arm64 \
-              -DBUILD_SHARED_LIBS=OFF -DHERMES_BUILD_SHARED_JSI=OFF
-          command: |
-            cmake -S hermes -B build -G Ninja ${RELEASE_FLAGS} -DHERMES_ENABLE_DEBUGGER=False
-            cmake --build ./build --target hermes hvm hbcdump hermesc check-hermes
-            cmake -S hermes -B build_hdb -G Ninja ${RELEASE_FLAGS}
-            cmake --build ./build_hdb --target hdb check-hermes
-      - run:
-          name: Create CLI tarball
-          environment:
-            TAR_NAME: hermes-cli-darwin.tar.gz
-          command: |
-            mkdir output staging
-            cp build/bin/hermes build/bin/hvm build/bin/hbcdump \
-              build/bin/hermesc build_hdb/bin/hdb staging
-            tar -C staging -czvf output/${TAR_NAME} .
-            shasum -a 256 output/${TAR_NAME} > output/${TAR_NAME}.sha256
-      - store_artifacts:
-          path: output
-      - persist_to_workspace:
-          root: output
-          paths:
-            - .
-
-  test-macos:
-    macos:
-      xcode: 13.4.1
-    steps:
-      - checkout:
-          path: hermes
-      - run:
-          name: Install dependencies
-          command: |
-            brew install cmake
-      - run:
-          name: Run MacOS regression tests in debug mode
-          command: |
-            cmake -S hermes -B build -GXcode
-            cmake --build ./build
-            cmake --build ./build --target check-hermes
-
   test-windows:
     executor:
       name: win/default
@@ -463,269 +126,3 @@ jobs:
           root: c:\tmp\hermes\output
           paths:
             - .
-
-  npm:
-    docker:
-      - image: cimg/node:lts
-    environment:
-      - YARN: yarnpkg
-      - TERM: dumb
-      - DEBIAN_FRONTEND: noninteractive
-    steps:
-      - run:
-          name: Print versions
-          command: |
-            node --version
-            yarn --version
-      - run:
-          name: Install certificates required to attach workspace
-          command: |
-            sudo apt-get update
-            sudo apt-get install -y ca-certificates
-
-      - attach_workspace:
-          at: /tmp/hermes/input
-
-      - run:
-          name: Install dependencies and set up
-          command: |
-            mkdir -p /tmp/hermes/output
-
-      - checkout
-
-      - run:
-          name: Build NPM
-          command: |
-            cd npm
-            cp /tmp/hermes/input/* .
-            $YARN install
-            $YARN unpack-builds
-            $YARN create-npms
-
-      - run:
-          name: Copy artifacts
-          command: |
-            cd npm
-            cp *.tgz /tmp/hermes/output
-            # Also copy the other packages for the sole purpose of not having
-            # to visit multiple jobs pages to download all release artifacts
-            cp /tmp/hermes/input/*.tar.gz /tmp/hermes/output
-
-      - run:
-          name: Checksum artifacts
-          command: |
-            cd /tmp/hermes/output
-            for file in *
-            do
-              sha256sum "$file" > "$file.sha256"
-            done
-
-      - store_artifacts:
-          path: /tmp/hermes/output
-
-      - persist_to_workspace:
-          root: /tmp/hermes/output
-          paths:
-            - .
-
-  emscripten:
-    docker:
-      - image: emscripten/emsdk:2.0.9
-    working_directory: /root
-    steps:
-      - run:
-          name: Install dependencies
-          command: |
-            apt update
-            apt install -y libicu-dev
-      - checkout:
-          path: hermes
-      - run:
-          name: Build Hermes Compiler
-          command: |
-            cmake -S hermes -B build_host_hermesc
-            cmake --build ./build_host_hermesc --target hermesc -j 4
-      - run:
-          name: Build Hermes with Emscripten for Website Playground
-          environment:
-            LINKER_FLAGS: -s WASM=1 \
-                          -s ALLOW_MEMORY_GROWTH=0 \
-                          -s TOTAL_MEMORY=33554432 \
-                          -s MODULARIZE=1 \
-                          -s EXPORT_NAME=createHermes \
-                          -s INVOKE_RUN=0 \
-                          -s EXIT_RUNTIME=1 \
-                          -s NODERAWFS=0 \
-                          -s EXTRA_EXPORTED_RUNTIME_METHODS=[callMain,FS]
-          command: |
-            echo LINKER_FLAGS: $LINKER_FLAGS
-            cmake -S hermes -B playground \
-                -DCMAKE_BUILD_TYPE=Release  \
-                -DCMAKE_EXE_LINKER_FLAGS="$LINKER_FLAGS" \
-                -DCMAKE_TOOLCHAIN_FILE="$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake" \
-                -DIMPORT_HERMESC="$PWD/build_host_hermesc/ImportHermesc.cmake"
-            cmake --build ./playground --target hermes -j 4
-            cmake --build ./playground --target hermesc -j 4
-            cmake --build ./playground --target emhermesc -j 4
-            EMHERMESC="$PWD/playground/bin/emhermesc.js" node ./hermes/tools/emhermesc/test.js
-      - run:
-          name: Create Playground tarball
-          environment:
-            TAR_NAME: hermes-cli-emscripten.tar.gz
-          command: |
-            mkdir output staging
-            cp ./playground/bin/hermes.js ./playground/bin/hermes.wasm staging
-            tar -C staging -czvf output/${TAR_NAME} .
-            shasum -a 256 output/${TAR_NAME} > output/${TAR_NAME}.sha256
-      - store_artifacts:
-          path: output
-      - persist_to_workspace:
-          root: output
-          paths:
-            - .
-
-  sandbox:
-    docker:
-      - image: emscripten/emsdk:3.1.39
-    environment:
-      - DEBIAN_FRONTEND: noninteractive
-    working_directory: /root
-    steps:
-      - run:
-          name: Install dependencies
-          command: |
-            apt update
-            apt install -y libicu-dev tzdata
-            wget https://github.com/WebAssembly/wabt/releases/download/1.0.33/wabt-1.0.33-ubuntu.tar.gz
-            tar -xvf ./wabt-1.0.33-ubuntu.tar.gz
-      - checkout:
-          path: hermes
-      - run:
-          name: Build Hermes with Emscripten
-          command: |
-            # Generate the host compiler.
-            cmake -S hermes -B build_host
-            cmake --build ./build_host --target hermesc -j 4
-
-            # Generate and build the debug artefact.
-            cmake -S hermes -B build_wasm_dbg \
-              -DCMAKE_TOOLCHAIN_FILE=$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake \
-              -DIMPORT_HERMESC=build_host/ImportHermesc.cmake \
-              -DCMAKE_BUILD_TYPE=Debug -DHERMES_UNICODE_LITE=ON \
-              -DCMAKE_CXX_FLAGS=-O2  -DCMAKE_C_FLAGS=-O2 \
-              -DCMAKE_EXE_LINKER_FLAGS="-sALLOW_MEMORY_GROWTH=1 -sSTACK_SIZE=256KB -sGLOBAL_BASE=16384" \
-              -DHERMES_ENABLE_DEBUGGER=OFF -DHERMES_SLOW_DEBUG=OFF \
-              -DHERMES_IS_MOBILE_BUILD=ON
-
-            cmake --build build_wasm_dbg --target hermesSandboxImpl -j 4
-            ./wabt-1.0.33/bin/wasm2c build_wasm_dbg/API/hermes_sandbox/hermesSandboxImpl.wasm -n hermes \
-              -o hermes/API/hermes_sandbox/external/hermes_sandbox_impl_dbg_compiled.c --num-outputs 8
-
-            # Generate and build the release artefact.
-            cmake -S hermes -B build_wasm_opt \
-              -DCMAKE_TOOLCHAIN_FILE=$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake \
-              -DIMPORT_HERMESC=build_host/ImportHermesc.cmake \
-              -DCMAKE_BUILD_TYPE=Release -DHERMES_UNICODE_LITE=ON \
-              -DCMAKE_EXE_LINKER_FLAGS="-sALLOW_MEMORY_GROWTH=1 -sSTACK_SIZE=256KB -sGLOBAL_BASE=16384 -g2" \
-              -DHERMES_ENABLE_DEBUGGER=OFF -DHERMES_IS_MOBILE_BUILD=ON
-
-            cmake --build build_wasm_opt --target hermesSandboxImpl -j 4
-            ./wabt-1.0.33/bin/wasm2c build_wasm_opt/API/hermes_sandbox/hermesSandboxImpl.wasm -n hermes \
-              -o hermes/API/hermes_sandbox/external/hermes_sandbox_impl_opt_compiled.c --num-outputs 8
-      - run:
-          name: Build and test with the newly generated sandbox
-          command: |
-            cmake -S hermes -B build_dbg -DCMAKE_BUILD_TYPE=Debug
-            cmake --build build_dbg -j 4
-            cmake --build build_dbg --target check-hermes -j 4
-
-            cmake -S hermes -B build_opt -DCMAKE_BUILD_TYPE=Release
-            cmake --build build_opt -j 4
-            cmake --build build_opt --target check-hermes -j 4
-
-  test-e2e:
-    executor:
-      name: android/android-machine
-      tag: 2024.01.1
-    working_directory: /home/circleci
-    environment:
-      REACT_NATIVE_OVERRIDE_HERMES_DIR: /home/circleci/hermes
-    steps:
-      - node/install:
-          install-yarn: true
-          lts: true
-      - run:
-          name: Setup dependencies
-          command: |
-            (yes | sdkmanager "cmake;3.22.1" --verbose) || true
-            sudo apt update && sudo apt install -y openjdk-11-jdk
-      - checkout:
-          path: hermes
-      - run:
-          name: Prepare RNTester
-          command: |
-            git clone --depth=1 https://github.com/facebook/react-native
-            cd react-native
-            yarn install
-            echo "console.log('Using Hermes: ' + (global.HermesInternal != null));" >> packages/rn-tester/js/RNTesterApp.android.js
-      - android/start-emulator-and-run-tests:
-          post-emulator-launch-assemble-command: ''
-          run-tests-working-directory: react-native
-          run-logcat: true
-          test-command: >-
-            ./gradlew -PreactNativeArchitectures=x86 :packages:rn-tester:android:app:installHermesRelease
-            && adb shell am start com.facebook.react.uiapp/.RNTesterActivity
-            && timeout 30s adb logcat -e "Using Hermes: true" -m 1
-
-  test-e2e-intl:
-    executor:
-      name: android/android-machine
-      tag: 2024.01.1
-    working_directory: /home/circleci
-    environment:
-      HERMES_WS_DIR: /home/circleci
-    steps:
-      - checkout:
-          path: hermes
-      - run:
-          name: Setup dependencies
-          command: |
-            (yes | sdkmanager "cmake;3.22.1" --verbose) || true
-            # Check out test262 at a pinned revision to reduce flakiness
-            git clone https://github.com/tc39/test262
-            cd test262
-            git checkout 62626e083bd506124aac6c799464d76c2c42851b
-      - run:
-          name: Build Hermes Compiler
-          command: |
-            cmake -S hermes -B ./build -DCMAKE_BUILD_TYPE=Release
-            cmake --build ./build -j 4 --target hermesc
-      - android/start-emulator-and-run-tests:
-          post-emulator-launch-assemble-command: ''
-          run-tests-working-directory: hermes/android
-          run-logcat: true
-          additional-emulator-args: -timezone Europe/Paris -partition-size 2048
-          additional-avd-args: "-c 2048M"
-          test-command: ./gradlew :intltest:prepareTests && ./gradlew -Pabis=x86 :intltest:connectedAndroidTest
-
-  test-macos-test262:
-    macos:
-      xcode: 13.4.1
-    steps:
-      - checkout:
-          path: hermes
-      - run:
-          name: Setup dependencies
-          command: |
-            brew install cmake ninja
-            # Check out test262 at a pinned revision to reduce flakiness
-            git clone https://github.com/tc39/test262
-            cd test262
-            git checkout 62626e083bd506124aac6c799464d76c2c42851b
-      - run:
-          name: Run Hermes tests and test262 with Intl
-          command: |
-            cmake -S hermes -B build -GNinja -DHERMES_ENABLE_INTL=ON
-            cmake --build ./build
-            cmake --build ./build --target check-hermes
-            python3 hermes/utils/testsuite/run_testsuite.py --test-intl test262/test -b build/bin