diff --git a/.circleci/.gitignore b/.circleci/.gitignore
deleted file mode 100644
index 2b7d56379cac..000000000000
--- a/.circleci/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-config-staging
diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 2696006fbd5d..000000000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,56 +0,0 @@
-version: 2.1
-
-# Required for dynamic configuration
-setup: true
-
-# Orbs
-orbs:
-  path-filtering: circleci/path-filtering@0.1.0
-  continuation: circleci/continuation@0.2.0
-
-# All input parameters to pass to build config
-parameters:
-  run-docs-only:
-    type: boolean
-    default: false
-
-  upload-to-storage:
-    type: string
-    default: '1'
-
-  run-build-linux:
-    type: boolean
-    default: false
-
-jobs:
-  generate-config:
-    docker:
-      - image: cimg/node:16.14
-    steps:
-      - checkout
-      - path-filtering/set-parameters:
-          base-revision: main
-          mapping: |
-            ^((?!docs/).)*$ run-build-linux true
-            docs/.* run-docs-only true
-            ^((?!docs/).)*$ run-docs-only false
-      - run:
-          command: |
-            cd .circleci/config
-            yarn
-            export CIRCLECI_BINARY="$HOME/circleci"
-            curl -fLSs https://raw.githubusercontent.com/CircleCI-Public/circleci-cli/main/install.sh | DESTDIR=$CIRCLECI_BINARY bash
-            node build.js
-          name: Pack config.yml
-      - run:
-          name: Set params
-          command: node .circleci/config/params.js
-      - continuation/continue:
-          configuration_path: .circleci/config-staging/built.yml
-          parameters: /tmp/pipeline-parameters.json
-
-# Initial setup workflow
-workflows:
-  setup:
-    jobs:
-      - generate-config
diff --git a/.circleci/config/base.yml b/.circleci/config/base.yml
deleted file mode 100644
index d8412126c88b..000000000000
--- a/.circleci/config/base.yml
+++ /dev/null
@@ -1,1642 +0,0 @@
-version: 2.1
-
-parameters:
-  run-docs-only:
-    type: boolean
-    default: false
-
-  upload-to-storage:
-    type: string
-    default: '1'
-
-  run-build-linux:
-    type: boolean
-    default: false
-
-  medium-linux-executor:
-    type: enum
-    default: electronjs/aks-linux-medium
-    enum: ["electronjs/aks-linux-medium", "medium"]
-  
-  large-linux-executor:
-    type: enum
-    default: electronjs/aks-linux-large
-    enum: ["electronjs/aks-linux-large", "2xlarge"]
-
-# Executors
-executors:
-  linux-docker:
-    parameters:
-      size:
-        description: "Docker executor size"
-        type: enum
-        # aks-linux-large === 32 core
-        # 2xlarge should not be used directly, use the pipeline param instead
-        enum: ["medium", "electronjs/aks-linux-medium", "xlarge", "electronjs/aks-linux-large", "2xlarge"]
-    docker:
-      - image: ghcr.io/electron/build:9a43c14f5c19be0359843299f79e736521373adc
-    resource_class: << parameters.size >>
-
-  # Electron Runners
-  linux-arm:
-    resource_class: electronjs/aks-linux-arm-test
-    docker:
-      - image: ghcr.io/electron/test:arm32v7-8e0f85b708fa58e28e4824954d6fd55adfda5e9e
-
-  linux-arm64:
-    resource_class: electronjs/aks-linux-arm-test
-    docker:
-      - image: ghcr.io/electron/test:arm64v8-76d5d29e247972da3855a01c2d8cf72c5998233a
-
-# The config expects the following environment variables to be set:
-#  - "SLACK_WEBHOOK" Slack hook URL to send notifications.
-#
-# CircleCI docs on variables:
-# https://circleci.com/docs/2.0/env-vars/
-
-# Build configurations options.
-env-testing-build: &env-testing-build
-  GN_CONFIG: //electron/build/args/testing.gn
-  CHECK_DIST_MANIFEST: '1'
-
-env-release-build: &env-release-build
-  GN_CONFIG: //electron/build/args/release.gn
-  STRIP_BINARIES: true
-  GENERATE_SYMBOLS: true
-  CHECK_DIST_MANIFEST: '1'
-  IS_RELEASE: true
-
-env-headless-testing: &env-headless-testing
-  DISPLAY: ':99.0'
-
-env-stack-dumping: &env-stack-dumping
-  ELECTRON_ENABLE_STACK_DUMPING: '1'
-
-env-browsertests: &env-browsertests
-  GN_CONFIG: //electron/build/args/native_tests.gn
-  BUILD_TARGET: electron/spec:chromium_browsertests
-  TESTS_CONFIG: src/electron/spec/configs/browsertests.yml
-
-env-unittests: &env-unittests
-  GN_CONFIG: //electron/build/args/native_tests.gn
-  BUILD_TARGET: electron/spec:chromium_unittests
-  TESTS_CONFIG: src/electron/spec/configs/unittests.yml
-
-env-arm: &env-arm
-  GN_EXTRA_ARGS: 'target_cpu = "arm"'
-  MKSNAPSHOT_TOOLCHAIN: //build/toolchain/linux:clang_arm
-  BUILD_NATIVE_MKSNAPSHOT: 1
-  TARGET_ARCH: arm
-
-env-apple-silicon: &env-apple-silicon
-  GN_EXTRA_ARGS: 'target_cpu = "arm64"'
-  TARGET_ARCH: arm64
-  npm_config_arch: arm64
-
-env-runner: &env-runner
-  IS_ELECTRON_RUNNER: 1
-
-env-arm64: &env-arm64
-  GN_EXTRA_ARGS: 'target_cpu = "arm64" fatal_linker_warnings = false enable_linux_installer = false'
-  MKSNAPSHOT_TOOLCHAIN: //build/toolchain/linux:clang_arm64
-  BUILD_NATIVE_MKSNAPSHOT: 1
-  TARGET_ARCH: arm64
-
-env-mas: &env-mas
-  GN_EXTRA_ARGS: 'is_mas_build = true'
-  MAS_BUILD: 'true'
-
-env-mas-apple-silicon: &env-mas-apple-silicon
-  GN_EXTRA_ARGS: 'target_cpu = "arm64" is_mas_build = true'
-  MAS_BUILD: 'true'
-  TARGET_ARCH: arm64
-  npm_config_arch: arm64
-
-env-send-slack-notifications: &env-send-slack-notifications
-  NOTIFY_SLACK: true
-
-env-global: &env-global
-  ELECTRON_OUT_DIR: Default
-
-env-linux-medium: &env-linux-medium
-  <<: *env-global
-  NUMBER_OF_NINJA_PROCESSES: 3
-
-env-linux-2xlarge: &env-linux-2xlarge
-  <<: *env-global
-  NUMBER_OF_NINJA_PROCESSES: 34
-
-env-linux-2xlarge-release: &env-linux-2xlarge-release
-  <<: *env-global
-  NUMBER_OF_NINJA_PROCESSES: 16
-
-env-ninja-status: &env-ninja-status
-  NINJA_STATUS: "[%r processes, %f/%t @ %o/s : %es] "
-
-env-32bit-release: &env-32bit-release
-  # Set symbol level to 1 for 32 bit releases because of https://crbug.com/648948
-  GN_BUILDFLAG_ARGS: 'symbol_level = 1'
-
-# Individual (shared) steps.
-step-maybe-notify-slack-failure: &step-maybe-notify-slack-failure
-  run:
-    name: Send a Slack notification on failure
-    command: |
-      if [ "$NOTIFY_SLACK" == "true" ]; then
-        export MESSAGE="Build failed for *<$CIRCLE_BUILD_URL|$CIRCLE_JOB>* nightly build from *$CIRCLE_BRANCH*."
-        curl -g -H "Content-Type: application/json" -X POST \
-        -d "{\"text\": \"$MESSAGE\", \"attachments\": [{\"color\": \"#FC5C3C\",\"title\": \"$CIRCLE_JOB nightly build results\",\"title_link\": \"$CIRCLE_BUILD_URL\"}]}" $SLACK_WEBHOOK
-      fi
-    when: on_fail
-
-step-maybe-notify-slack-success: &step-maybe-notify-slack-success
-  run:
-    name: Send a Slack notification on success
-    command: |
-      if [ "$NOTIFY_SLACK" == "true" ]; then
-        export MESSAGE="Build succeeded for *<$CIRCLE_BUILD_URL|$CIRCLE_JOB>* nightly build from *$CIRCLE_BRANCH*."
-        curl -g -H "Content-Type: application/json" -X POST \
-        -d "{\"text\": \"$MESSAGE\", \"attachments\": [{\"color\": \"good\",\"title\": \"$CIRCLE_JOB nightly build results\",\"title_link\": \"$CIRCLE_BUILD_URL\"}]}" $SLACK_WEBHOOK
-      fi
-    when: on_success
-
-step-checkout-electron: &step-checkout-electron
-  checkout:
-    path: src/electron
-
-step-depot-tools-get: &step-depot-tools-get
-  run:
-    name: Get depot tools
-    command: |
-      git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
-      sed -i '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
-      # Remove swift-format dep from cipd on macOS until we send a patch upstream.
-      cd depot_tools
-      cat > gclient.diff \<< 'EOF'
-      diff --git a/gclient.py b/gclient.py
-      index c305c248..e6e0fbdc 100755
-      --- a/gclient.py
-      +++ b/gclient.py
-      @@ -783,7 +783,8 @@ class Dependency(gclient_utils.WorkItem, DependencySettings):
-                               not condition or "non_git_source" not in condition):
-                           continue
-                       cipd_root = self.GetCipdRoot()
-      -                for package in dep_value.get('packages', []):
-      +                packages = dep_value.get('packages', [])
-      +                for package in (x for x in packages if "infra/3pp/tools/swift-format" not in x.get('package')):
-                           deps_to_add.append(
-                               CipdDependency(parent=self,
-                                              name=name,
-      EOF
-      git apply --3way gclient.diff
-      # Ensure depot_tools does not update.
-      test -d depot_tools && cd depot_tools
-      touch .disable_auto_update
-
-step-depot-tools-add-to-path: &step-depot-tools-add-to-path
-  run:
-    name: Add depot tools to PATH
-    command: echo 'export PATH="$PATH:'"$PWD"'/depot_tools"' >> $BASH_ENV
-
-step-gclient-sync: &step-gclient-sync
-  run:
-    name: Gclient sync
-    command: |
-      # If we did not restore a complete sync then we need to sync for realz
-      if [ ! -s "src/electron/.circle-sync-done" ]; then
-        gclient config \
-          --name "src/electron" \
-          --unmanaged \
-          $GCLIENT_EXTRA_ARGS \
-          "$CIRCLE_REPOSITORY_URL"
-
-        ELECTRON_USE_THREE_WAY_MERGE_FOR_PATCHES=1 gclient sync --with_branch_heads --with_tags
-        if [ "$IS_RELEASE" != "true" ]; then
-          # Re-export all the patches to check if there were changes.
-          python3 src/electron/script/export_all_patches.py src/electron/patches/config.json
-          cd src/electron
-          git update-index --refresh || true
-          if ! git diff-index --quiet HEAD --; then
-            # There are changes to the patches. Make a git commit with the updated patches
-            git add patches
-            GIT_COMMITTER_NAME="PatchUp" GIT_COMMITTER_EMAIL="73610968+patchup[bot]@users.noreply.github.com" git commit -m "chore: update patches" --author="PatchUp <73610968+patchup[bot]@users.noreply.github.com>"
-            # Export it
-            mkdir -p ../../patches
-            git format-patch -1 --stdout --keep-subject --no-stat --full-index > ../../patches/update-patches.patch
-            if (node ./script/push-patch.js 2> /dev/null > /dev/null); then
-              echo
-              echo "======================================================================"
-              echo "Changes to the patches when applying, we have auto-pushed the diff to the current branch"
-              echo "A new CI job will kick off shortly"
-              echo "======================================================================"
-              exit 1
-            else
-              echo
-              echo "======================================================================"
-              echo "There were changes to the patches when applying."
-              echo "Check the CI artifacts for a patch you can apply to fix it."
-              echo "======================================================================"
-              exit 1
-            fi
-          fi
-        fi
-      fi
-
-step-setup-env-for-build: &step-setup-env-for-build
-  run:
-    name: Setup Environment Variables
-    command: |
-      # To find `gn` executable.
-      echo 'export CHROMIUM_BUILDTOOLS_PATH="'"$PWD"'/src/buildtools"' >> $BASH_ENV
-
-step-setup-rbe-for-build: &step-setup-rbe-for-build
-  run:
-    name: Setup RBE
-    command: |
-      echo 'export NUMBER_OF_NINJA_PROCESSES=300' >> $BASH_ENV
-      if [ "`uname`" == "Darwin" ]; then
-        echo 'export NUMBER_OF_NINJA_PROCESSES=200' >> $BASH_ENV
-        echo 'ulimit -n 10000' >> $BASH_ENV
-        echo 'sudo launchctl limit maxfiles 65536 200000' >> $BASH_ENV
-      fi
-      git clone https://github.com/electron/build-tools.git
-      cd build-tools
-      npx yarn --ignore-engines
-      mkdir third_party
-      # Pull down credential helper and print status
-      node -e "require('./src/utils/reclient.js').downloadAndPrepare({})"
-      HELPER=$(node -p "require('./src/utils/reclient.js').helperPath({})")
-      $HELPER login
-      echo 'export RBE_service='`node -e "console.log(require('./src/utils/reclient.js').serviceAddress)"` >> $BASH_ENV
-      echo 'export RBE_experimental_credentials_helper='`node -e "console.log(require('./src/utils/reclient.js').helperPath({}))"` >> $BASH_ENV
-      echo 'export RBE_experimental_credentials_helper_args="print"' >> $BASH_ENV
-
-step-restore-brew-cache: &step-restore-brew-cache
-  restore_cache:
-    paths:
-      - /usr/local/Cellar/gnu-tar
-      - /usr/local/bin/gtar
-    keys:
-      - v6-brew-cache-{{ arch }}
-
-step-save-brew-cache: &step-save-brew-cache
-  save_cache:
-    paths:
-      - /usr/local/Cellar/gnu-tar
-      - /usr/local/bin/gtar
-    key: v6-brew-cache-{{ arch }}
-    name: Persisting brew cache
-
-step-install-npm-deps: &step-install-npm-deps
-  run:
-    name: Install node_modules
-    command: |
-      cd src/electron
-      node script/yarn install --frozen-lockfile
-
-step-gn-gen-default: &step-gn-gen-default
-  run:
-    name: Default GN gen
-    command: |
-      cd src
-      gn gen out/Default --args="import(\"$GN_CONFIG\") use_remoteexec=true $GN_EXTRA_ARGS $GN_BUILDFLAG_ARGS"
-
-step-gn-check: &step-gn-check
-  run:
-    name: GN check
-    command: |
-      cd src
-      gn check out/Default //electron:electron_lib
-      gn check out/Default //electron:electron_app
-      gn check out/Default //electron/shell/common/api:mojo
-      # Check the hunspell filenames
-      node electron/script/gen-hunspell-filenames.js --check
-      node electron/script/gen-libc++-filenames.js --check
-
-step-maybe-electron-dist-strip: &step-maybe-electron-dist-strip
-  run:
-    name: Strip electron binaries
-    command: |
-      if [ "$STRIP_BINARIES" == "true" ] && [ "`uname`" == "Linux" ]; then
-        if [ x"$TARGET_ARCH" == x ]; then
-          target_cpu=x64
-        else
-          target_cpu="$TARGET_ARCH"
-        fi
-        cd src
-        electron/script/copy-debug-symbols.py --target-cpu="$target_cpu" --out-dir=out/Default/debug --compress
-        electron/script/strip-binaries.py --target-cpu="$target_cpu"
-        electron/script/add-debug-link.py --target-cpu="$target_cpu" --debug-dir=out/Default/debug
-      fi
-
-step-electron-chromedriver-build: &step-electron-chromedriver-build
-  run:
-    name: Build chromedriver.zip
-    command: |
-      cd src
-      if [ "`uname`" != "Darwin" ] && ([ "$TARGET_ARCH" == "arm" ] || [ "$TARGET_ARCH" == "arm64" ]); then
-        gn gen out/chromedriver --args="import(\"$GN_CONFIG\") use_remoteexec=true is_component_ffmpeg=false proprietary_codecs=false $GN_EXTRA_ARGS $GN_BUILDFLAG_ARGS"
-        export CHROMEDRIVER_DIR="out/chromedriver"
-      else
-        export CHROMEDRIVER_DIR="out/Default"
-      fi
-      autoninja -C $CHROMEDRIVER_DIR electron:electron_chromedriver -j $NUMBER_OF_NINJA_PROCESSES
-      if [ "`uname`" == "Linux" ]; then
-        electron/script/strip-binaries.py --target-cpu="$TARGET_ARCH" --file $PWD/$CHROMEDRIVER_DIR/chromedriver
-      fi
-      autoninja -C $CHROMEDRIVER_DIR electron:electron_chromedriver_zip
-      if [ "`uname`" != "Darwin" ] && ([ "$TARGET_ARCH" == "arm" ] || [ "$TARGET_ARCH" == "arm64" ]); then
-        cp out/chromedriver/chromedriver.zip out/Default
-      fi
-
-step-nodejs-headers-build: &step-nodejs-headers-build
-  run:
-    name: Build Node.js headers
-    command: |
-      cd src
-      autoninja -C out/Default electron:node_headers
-
-step-electron-dist-unzip: &step-electron-dist-unzip
-  run:
-    name: Unzip dist.zip
-    command: |
-      cd src/out/Default
-      # -o  overwrite files WITHOUT prompting
-      # TODO(alexeykuzmin): Remove '-o' when it's no longer needed.
-      # -: allows to extract archive members into  locations  outside
-      #    of the current ``extraction root folder''.
-      #    ASan builds have the llvm-symbolizer binaries listed as
-      #    runtime_deps, with their paths as `../../third_party/...`
-      #    unzip exits with non-zero code on such zip files unless -: is
-      #    passed.
-      unzip -:o dist.zip
-
-step-mksnapshot-unzip: &step-mksnapshot-unzip
-  run:
-    name: Unzip mksnapshot.zip
-    command: |
-      cd src/out/Default
-      unzip -:o mksnapshot.zip
-
-step-chromedriver-unzip: &step-chromedriver-unzip
-  run:
-    name: Unzip chromedriver.zip
-    command: |
-      cd src/out/Default
-      unzip -:o chromedriver.zip
-
-step-ffmpeg-gn-gen: &step-ffmpeg-gn-gen
-  run:
-    name: ffmpeg GN gen
-    command: |
-      cd src
-      gn gen out/ffmpeg --args="import(\"//electron/build/args/ffmpeg.gn\") use_remoteexec=true $GN_EXTRA_ARGS"
-
-step-ffmpeg-build: &step-ffmpeg-build
-  run:
-    name: Non proprietary ffmpeg build
-    command: |
-      cd src
-      autoninja -C out/ffmpeg electron:electron_ffmpeg_zip -j $NUMBER_OF_NINJA_PROCESSES
-
-step-verify-mksnapshot: &step-verify-mksnapshot
-  run:
-    name: Verify mksnapshot
-    command: |
-      if [ "$IS_ASAN" != "1" ]; then
-        cd src
-        if [ "`uname`" != "Darwin" ] && ([ "$TARGET_ARCH" == "arm" ] || [ "$TARGET_ARCH" == "arm64" ]); then
-          python3 electron/script/verify-mksnapshot.py --source-root "$PWD" --build-dir out/Default --snapshot-files-dir $PWD/cross-arch-snapshots
-        else
-          python3 electron/script/verify-mksnapshot.py --source-root "$PWD" --build-dir out/Default
-        fi
-      fi
-
-step-verify-chromedriver: &step-verify-chromedriver
-  run:
-    name: Verify ChromeDriver
-    command: |
-      if [ "$IS_ASAN" != "1" ]; then
-        cd src
-        python3 electron/script/verify-chromedriver.py --source-root "$PWD" --build-dir out/Default
-      fi
-
-step-setup-linux-for-headless-testing: &step-setup-linux-for-headless-testing
-  run:
-    name: Setup for headless testing
-    command: |
-      if [ "`uname`" != "Darwin" ]; then
-        sh -e /etc/init.d/xvfb start
-      fi
-
-step-mksnapshot-build: &step-mksnapshot-build
-  run:
-    name: mksnapshot build
-    no_output_timeout: 30m
-    command: |
-      cd src
-      autoninja -C out/Default electron:electron_mksnapshot -j $NUMBER_OF_NINJA_PROCESSES
-      gn desc out/Default v8:run_mksnapshot_default args > out/Default/mksnapshot_args
-      # Remove unused args from mksnapshot_args
-      SEDOPTION="-i"
-      if [ "`uname`" == "Darwin" ]; then
-        SEDOPTION="-i ''"
-      fi
-      sed $SEDOPTION '/.*builtins-pgo/d' out/Default/mksnapshot_args
-      sed $SEDOPTION '/--turbo-profiling-input/d' out/Default/mksnapshot_args
-      sed $SEDOPTION '/The gn arg use_goma=true .*/d' out/Default/mksnapshot_args
-      if [ "`uname`" != "Darwin" ]; then
-        if [ "$TARGET_ARCH" == "arm" ]; then
-          electron/script/strip-binaries.py --file $PWD/out/Default/clang_x86_v8_arm/mksnapshot
-          electron/script/strip-binaries.py --file $PWD/out/Default/clang_x86_v8_arm/v8_context_snapshot_generator
-        elif [ "$TARGET_ARCH" == "arm64" ]; then
-          electron/script/strip-binaries.py --file $PWD/out/Default/clang_x64_v8_arm64/mksnapshot
-          electron/script/strip-binaries.py --file $PWD/out/Default/clang_x64_v8_arm64/v8_context_snapshot_generator
-        else
-          electron/script/strip-binaries.py --file $PWD/out/Default/mksnapshot
-          electron/script/strip-binaries.py --file $PWD/out/Default/v8_context_snapshot_generator
-        fi
-      fi
-      if [ "$SKIP_DIST_ZIP" != "1" ]; then
-        autoninja -C out/Default electron:electron_mksnapshot_zip -j $NUMBER_OF_NINJA_PROCESSES
-        (cd out/Default; zip mksnapshot.zip mksnapshot_args gen/v8/embedded.S)
-      fi
-
-step-hunspell-build: &step-hunspell-build
-  run:
-    name: hunspell build
-    command: |
-      cd src
-      if [ "$SKIP_DIST_ZIP" != "1" ]; then
-        autoninja -C out/Default electron:hunspell_dictionaries_zip -j $NUMBER_OF_NINJA_PROCESSES
-      fi
-
-step-maybe-generate-libcxx: &step-maybe-generate-libcxx
-  run:
-    name: maybe generate libcxx
-    command: |
-      cd src
-      if [ "`uname`" == "Linux" ]; then
-        autoninja -C out/Default electron:libcxx_headers_zip -j $NUMBER_OF_NINJA_PROCESSES
-        autoninja -C out/Default electron:libcxxabi_headers_zip -j $NUMBER_OF_NINJA_PROCESSES
-        autoninja -C out/Default electron:libcxx_objects_zip -j $NUMBER_OF_NINJA_PROCESSES
-      fi
-
-step-maybe-generate-breakpad-symbols: &step-maybe-generate-breakpad-symbols
-  run:
-    name: Generate breakpad symbols
-    no_output_timeout: 30m
-    command: |
-      if [ "$GENERATE_SYMBOLS" == "true" ]; then
-        cd src
-        autoninja -C out/Default electron:electron_symbols
-      fi
-
-step-maybe-zip-symbols: &step-maybe-zip-symbols
-  run:
-    name: Zip symbols
-    command: |
-      cd src
-      export BUILD_PATH="$PWD/out/Default"
-      autoninja -C out/Default electron:licenses
-      autoninja -C out/Default electron:electron_version_file
-      electron/script/zip-symbols.py -b $BUILD_PATH
-
-step-maybe-zip-symbols-and-clean: &step-maybe-zip-symbols-and-clean
-  run:
-    name: Zip symbols
-    command: |
-      cd src
-      export BUILD_PATH="$PWD/out/Default"
-      autoninja -C out/Default electron:licenses
-      autoninja -C out/Default electron:electron_version_file
-      DELETE_DSYMS_AFTER_ZIP=1 electron/script/zip-symbols.py -b $BUILD_PATH
-
-step-maybe-cross-arch-snapshot: &step-maybe-cross-arch-snapshot
-  run:
-    name: Generate cross arch snapshot (arm/arm64)
-    command: |
-      if [ "$GENERATE_CROSS_ARCH_SNAPSHOT" == "true" ] && [ -z "$CIRCLE_PR_NUMBER" ]; then
-        cd src
-        if [ "$TARGET_ARCH" == "arm" ]; then
-          export MKSNAPSHOT_PATH="clang_x86_v8_arm"
-        elif [ "$TARGET_ARCH" == "arm64" ]; then
-          export MKSNAPSHOT_PATH="clang_x64_v8_arm64"
-        fi
-        cp "out/Default/$MKSNAPSHOT_PATH/mksnapshot" out/Default
-        cp "out/Default/$MKSNAPSHOT_PATH/v8_context_snapshot_generator" out/Default
-        if [ "`uname`" == "Linux" ]; then
-          cp "out/Default/$MKSNAPSHOT_PATH/libffmpeg.so" out/Default
-        elif [ "`uname`" == "Darwin" ]; then
-          cp "out/Default/$MKSNAPSHOT_PATH/libffmpeg.dylib" out/Default
-        fi
-        python3 electron/script/verify-mksnapshot.py --source-root "$PWD" --build-dir out/Default --create-snapshot-only
-        mkdir cross-arch-snapshots
-        cp out/Default-mksnapshot-test/*.bin cross-arch-snapshots
-        # Clean up so that ninja does not get confused
-        if [ "`uname`" == "Linux" ]; then
-          rm -f out/Default/libffmpeg.so
-        elif [ "`uname`" == "Darwin" ]; then
-          rm -f out/Default/libffmpeg.dylib
-        fi
-      fi
-
-step-maybe-generate-typescript-defs: &step-maybe-generate-typescript-defs
-  run:
-    name: Generate type declarations
-    command: |
-      if [ "`uname`" == "Darwin" ]; then
-        cd src/electron
-        node script/yarn create-typescript-definitions
-      fi
-
-step-fix-known-hosts-linux: &step-fix-known-hosts-linux
-  run:
-    name: Fix Known Hosts on Linux
-    command: |
-      if [ "`uname`" == "Linux" ]; then
-        ./src/electron/.circleci/fix-known-hosts.sh
-      fi
-
-# Checkout Steps
-step-generate-deps-hash: &step-generate-deps-hash
-  run:
-    name: Generate DEPS Hash
-    command: node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-
-step-touch-sync-done: &step-touch-sync-done
-  run:
-    name: Touch Sync Done
-    command: touch src/electron/.circle-sync-done
-
-# Restore exact src cache based on the hash of DEPS and patches/*
-# If no cache is matched EXACTLY then the .circle-sync-done file is empty
-# If a cache is matched EXACTLY then the .circle-sync-done file contains "done"
-step-maybe-restore-src-cache: &step-maybe-restore-src-cache
-  restore_cache:
-    keys:
-      - v17-src-cache-{{ checksum "src/electron/.depshash" }}
-    name: Restoring src cache
-step-maybe-restore-src-cache-marker: &step-maybe-restore-src-cache-marker
-  restore_cache:
-    keys:
-      - v17-src-cache-marker-{{ checksum "src/electron/.depshash" }}
-    name: Restoring src cache marker
-
-step-maybe-restore-src-cache-aks: &step-maybe-restore-src-cache-aks
-  restore_cache_aks:
-    step-name: Restoring src cache
-    cache_key: v17-src-cache-$(shasum src/electron/.depshash | cut -f1 -d' ')
-    cache_path: /var/portal
-
-step-maybe-restore-src-cache-marker-aks: &step-maybe-restore-src-cache-marker-aks
-  restore_cache_aks:
-    step-name: Restoring src cache marker
-    cache_key: v17-src-cache-marker-$(shasum src/electron/.depshash | cut -f1 -d' ')
-    cache_path: "."
-
-# Restore exact or closest git cache based on the hash of DEPS and .circle-sync-done
-# If the src cache was restored above then this will match an empty cache
-# If the src cache was not restored above then this will match a close git cache
-step-maybe-restore-git-cache: &step-maybe-restore-git-cache
-  restore_cache:
-    paths:
-      - git-cache
-    keys:
-      - v1-git-cache-{{ checksum "src/electron/.circle-sync-done" }}-{{ checksum "src/electron/DEPS" }}
-      - v1-git-cache-{{ checksum "src/electron/.circle-sync-done" }}
-    name: Conditionally restoring git cache
-
-step-maybe-restore-git-cache-aks: &step-maybe-restore-git-cache-aks
-  restore_cache_aks:
-    step-name: Conditionally restoring git cache (aks)
-    cache_key: v1-git-cache-$(shasum src/electron/.circle-sync-done | cut -f1 -d' ')-$(shasum src/electron/DEPS | cut -f1 -d' ') v1-git-cache-$(shasum src/electron/.circle-sync-done | cut -f1 -d' ')
-    cache_path: git-cache
-
-step-set-git-cache-path: &step-set-git-cache-path
-  run:
-    name: Set GIT_CACHE_PATH to make gclient to use the cache
-    command: |
-      # CircleCI does not support interpolation when setting environment variables.
-      # https://circleci.com/docs/2.0/env-vars/#setting-an-environment-variable-in-a-shell-command
-      echo 'export GIT_CACHE_PATH="$PWD/git-cache"' >> $BASH_ENV
-
-# Persist the git cache based on the hash of DEPS and .circle-sync-done
-# If the src cache was restored above then this will persist an empty cache
-step-save-git-cache: &step-save-git-cache
-  save_cache:
-    paths:
-      - git-cache
-    key: v1-git-cache-{{ checksum "src/electron/.circle-sync-done" }}-{{ checksum "src/electron/DEPS" }}
-    name: Persisting git cache
-
-step-save-git-cache-aks: &step-save-git-cache-aks
-  save_cache_aks:
-    step-name: Persisting git cache (AKS)
-    cache_key: v1-git-cache-$(shasum src/electron/.circle-sync-done | cut -f1 -d' ')-$(shasum src/electron/DEPS | cut -f1 -d' ')
-    cache_path: git-cache
-
-step-run-electron-only-hooks: &step-run-electron-only-hooks
-  run:
-    name: Run Electron Only Hooks
-    command: gclient runhooks --spec="solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]"
-
-step-generate-deps-hash-cleanly: &step-generate-deps-hash-cleanly
-  run:
-    name: Generate DEPS Hash
-    command: (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-
-# Mark the sync as done for future cache saving
-step-mark-sync-done: &step-mark-sync-done
-  run:
-    name: Mark Sync Done
-    command: echo DONE > src/electron/.circle-sync-done
-
-# Minimize the size of the cache
-step-minimize-workspace-size-from-checkout: &step-minimize-workspace-size-from-checkout
-  run:
-    name: Remove some unused data to avoid storing it in the workspace/cache
-    command: |
-      rm -rf src/android_webview
-      rm -rf src/ios/chrome
-      rm -rf src/third_party/blink/web_tests
-      rm -rf src/third_party/blink/perf_tests
-      rm -rf third_party/electron_node/deps/openssl
-      rm -rf third_party/electron_node/deps/v8
-      rm -rf chrome/test/data/xr/webvr_info
-      rm -rf src/third_party/angle/third_party/VK-GL-CTS/src
-      rm -rf src/third_party/swift-toolchain
-      rm -rf src/third_party/swiftshader/tests/regres/testlists
-
-# Save the src cache based on the deps hash
-step-save-src-cache: &step-save-src-cache
-  save_cache:
-    paths:
-      - /var/portal
-    key: v17-src-cache-{{ checksum "/var/portal/src/electron/.depshash" }}
-    name: Persisting src cache
-step-make-src-cache-marker: &step-make-src-cache-marker
-  run:
-    name: Making src cache marker
-    command: touch .src-cache-marker
-step-save-src-cache-marker: &step-save-src-cache-marker
-  save_cache:
-    paths:
-      - .src-cache-marker
-    key: v17-src-cache-marker-{{ checksum "/var/portal/src/electron/.depshash" }}
-step-save-src-cache-aks: &step-save-src-cache-aks
-  save_cache_aks:
-    step-name: Persisting src cache (aks)
-    cache_key: v17-src-cache-$(shasum /var/portal/src/electron/.depshash | cut -f1 -d' ')
-    cache_path: /var/portal
-step-save-src-cache-marker-aks: &step-save-src-cache-marker-aks
-  save_cache_aks:
-    step-name: Persisting src cache marker (aks)
-    cache_key: v17-src-cache-marker-$(shasum /var/portal/src/electron/.depshash | cut -f1 -d' ')
-    cache_path: .src-cache-marker
-
-step-maybe-early-exit-no-doc-change: &step-maybe-early-exit-no-doc-change
-  run:
-    name: Shortcircuit job if change is not doc only
-    command: |
-      if [ ! -s src/electron/.skip-ci-build ]; then
-        circleci-agent step halt
-      fi
-
-step-ts-compile: &step-ts-compile
-  run:
-    name: Run TS/JS compile on doc only change
-    command: |
-      cd src/electron
-      node script/yarn create-typescript-definitions
-      node script/yarn tsc -p tsconfig.default_app.json --noEmit
-      for f in build/webpack/*.js
-      do
-        out="${f:29}"
-        if [ "$out" != "base.js" ]; then
-          node script/yarn webpack --config $f --output-filename=$out --output-path=./.tmp --env mode=development
-        fi
-      done
-
-# List of all steps.
-steps-electron-ts-compile-for-doc-change: &steps-electron-ts-compile-for-doc-change
-  steps:
-    # Checkout - Copied from steps-checkout
-    - *step-checkout-electron
-    - *step-install-npm-deps
-
-    #Compile ts/js to verify doc change didn't break anything
-    - *step-ts-compile
-
-# Command Aliases
-commands:
-  aks-specific-step:
-    parameters:
-      circle:
-        type: steps
-      aks:
-        type: steps
-      could-be-aks:
-        type: boolean
-        description: Only set this to true on linux hosts
-    steps:
-      - when:
-          condition:
-            or:
-              - equal: [<< parameters.could-be-aks >>, false]
-              - equal: [<< pipeline.parameters.large-linux-executor >>, 2xlarge]
-          steps: << parameters.circle >>
-      - when:
-          condition:
-            and:
-              - equal: [<< parameters.could-be-aks >>, true]
-              - equal: [<< pipeline.parameters.large-linux-executor >>, electronjs/aks-linux-large]
-          steps: << parameters.aks >>
-  save_cache_aks:
-    parameters:
-      step-name:
-        type: string
-      cache_key:
-        type: string
-      cache_path:
-        type: string
-    steps:
-      - run:
-          name: << parameters.step-name >>
-          command: |
-            cache_key="<< parameters.cache_key >>"
-            final_cache_path=/mnt/cross-instance-cache/${cache_key}.tar
-            echo "Using cache key: $cache_key"
-            echo "Checking path: $final_cache_path"
-            if [ ! -f "$final_cache_path" ]; then
-              echo "Cache key not founding, storing tarball"
-              tmp_container=/mnt/cross-instance-cache/tmp/$CIRCLE_WORKFLOW_JOB_ID
-              tmp_cache_path=$tmp_container/${cache_key}.tar
-              mkdir -p $tmp_container
-              if [ -f "<< parameters.cache_path >>" ]; then
-                tar -cf $tmp_cache_path -C $(dirname << parameters.cache_path >>) ./$(basename << parameters.cache_path >>)
-              else
-                tar -cf $tmp_cache_path -C << parameters.cache_path >>/ ./
-              fi
-              mv -vn $tmp_cache_path $final_cache_path
-              rm -rf $tmp_container
-            else
-              echo "Cache key already exists, skipping.."
-            fi
-  restore_cache_aks:
-    parameters:
-      step-name:
-        type: string
-      cache_key:
-        type: string
-      cache_path:
-        type: string
-    steps:
-      - run:
-          name: << parameters.step-name >>
-          command: |
-            df -h
-            for cache_key in << parameters.cache_key >>; do
-              cache_path=/mnt/cross-instance-cache/${cache_key}.tar
-              echo "Using cache key: $cache_key"
-              echo "Checking path: $cache_path"
-              if [ ! -f "$cache_path" ]; then
-                echo "Cache key not found, nothing to restore..."
-              else
-                echo "Cache key found, restoring to path..."
-                mkdir -p << parameters.cache_path >>/
-                tar -xf /mnt/cross-instance-cache/${cache_key}.tar -C << parameters.cache_path >>/
-                exit 0
-              fi
-            done
-  maybe-restore-portaled-src-cache:
-    parameters:
-      halt-if-successful:
-        type: boolean
-        default: false
-      could-be-aks:
-        type: boolean
-    steps:
-      - run:
-          name: Prepare for cross-OS sync restore
-          command: |
-            sudo mkdir -p /var/portal
-            sudo chown -R $(id -u):$(id -g) /var/portal
-      - when:
-          condition: << parameters.halt-if-successful >>
-          steps:
-            - aks-specific-step:
-                circle:
-                  - *step-maybe-restore-src-cache-marker
-                aks:
-                  - *step-maybe-restore-src-cache-marker-aks
-                could-be-aks: << parameters.could-be-aks >>
-            - run:
-                name: Halt the job early if the src cache exists
-                command: |
-                  if [ -f ".src-cache-marker" ]; then
-                    circleci-agent step halt
-                  fi
-      - aks-specific-step:
-          circle:
-            - *step-maybe-restore-src-cache
-          aks:
-            - *step-maybe-restore-src-cache-aks
-          could-be-aks: << parameters.could-be-aks >>
-      - run:
-          name: Fix the src cache restore point
-          command: |
-            if [ -d "/var/portal/src" ]; then
-              echo Relocating Cache
-              rm -rf src
-              mv /var/portal/src ./
-            fi
-  run-gn-check:
-    parameters:
-      could-be-aks:
-        type: boolean
-    steps:
-      - *step-setup-rbe-for-build
-      - checkout-from-cache:
-          could-be-aks: << parameters.could-be-aks >>
-      - *step-setup-env-for-build
-      - *step-gn-gen-default
-      - *step-gn-check
-  build_and_save_artifacts:
-    parameters:
-      artifact-key:
-        type: string
-      build-type:
-        type: string
-      build-nonproprietary-ffmpeg:
-        type: boolean
-        default: true
-    steps:
-      - *step-gn-gen-default
-      - ninja_build_electron:
-          clean-prebuilt-snapshot: false
-          build-type: << parameters.build-type >>
-      - *step-maybe-electron-dist-strip
-      - step-electron-dist-build:
-          additional-targets: electron:node_headers third_party/electron_node:overlapped-checker electron:hunspell_dictionaries_zip
-
-      # mksnapshot
-      - *step-mksnapshot-build
-      - *step-maybe-cross-arch-snapshot
-
-      # chromedriver
-      - *step-electron-chromedriver-build
-
-      - when:
-          condition: << parameters.build-nonproprietary-ffmpeg >>
-          steps:
-            # ffmpeg
-            - *step-ffmpeg-gn-gen
-            - *step-ffmpeg-build
-
-      - *step-maybe-generate-breakpad-symbols
-      - *step-maybe-zip-symbols
-
-      - move_and_store_all_artifacts:
-          artifact-key: << parameters.artifact-key >>
-
-  move_and_store_all_artifacts:
-    parameters:
-      artifact-key:
-        type: string
-    steps:
-      - run:
-          name: Move all generated artifacts to upload folder
-          command: |
-            rm -rf generated_artifacts_<< parameters.artifact-key >>
-            mkdir generated_artifacts_<< parameters.artifact-key >>
-            mv_if_exist() {
-              if [ -f "$1" ] || [ -d "$1" ]; then
-                echo Storing $1
-                mv $1 generated_artifacts_<< parameters.artifact-key >>
-              else
-                echo Skipping $1 - It is not present on disk
-              fi
-            }
-            cp_if_exist() {
-              if [ -f "$1" ] || [ -d "$1" ]; then
-                echo Storing $1
-                cp $1 generated_artifacts_<< parameters.artifact-key >>
-              else
-                echo Skipping $1 - It is not present on disk
-              fi
-            }
-            mv_if_exist src/out/Default/dist.zip
-            mv_if_exist src/out/Default/gen/node_headers.tar.gz
-            mv_if_exist src/out/Default/symbols.zip
-            mv_if_exist src/out/Default/mksnapshot.zip
-            mv_if_exist src/out/Default/chromedriver.zip
-            mv_if_exist src/out/ffmpeg/ffmpeg.zip
-            mv_if_exist src/out/Default/hunspell_dictionaries.zip
-            mv_if_exist src/cross-arch-snapshots
-            cp_if_exist src/out/electron_ninja_log
-            cp_if_exist src/out/Default/.ninja_log
-          when: always
-      - store_artifacts:
-          path: generated_artifacts_<< parameters.artifact-key >>
-          destination: ./<< parameters.artifact-key >>
-      - store_artifacts:
-          path: generated_artifacts_<< parameters.artifact-key >>/cross-arch-snapshots
-          destination: << parameters.artifact-key >>/cross-arch-snapshots
-
-  restore_build_artifacts:
-    parameters:
-      artifact-key:
-        type: string
-    steps:
-      - attach_workspace:
-          at: .
-      - run:
-          name: Restore key specific artifacts
-          command: |
-            mv_if_exist() {
-              if [ -f "generated_artifacts_<< parameters.artifact-key >>/$1" ] || [ -d "generated_artifacts_<< parameters.artifact-key >>/$1" ]; then
-                echo Restoring $1 to $2
-                mkdir -p $2
-                mv generated_artifacts_<< parameters.artifact-key >>/$1 $2
-              else
-                echo Skipping $1 - It is not present on disk
-              fi
-            }
-            mv_if_exist dist.zip src/out/Default
-            mv_if_exist node_headers.tar.gz src/out/Default/gen
-            mv_if_exist symbols.zip src/out/Default
-            mv_if_exist mksnapshot.zip src/out/Default
-            mv_if_exist chromedriver.zip src/out/Default
-            mv_if_exist ffmpeg.zip src/out/ffmpeg
-            mv_if_exist hunspell_dictionaries.zip src/out/Default
-            mv_if_exist cross-arch-snapshots src
-
-  checkout-from-cache:
-    parameters:
-      could-be-aks:
-        type: boolean
-    steps:
-      - *step-checkout-electron
-      - *step-depot-tools-get
-      - *step-depot-tools-add-to-path
-      - *step-generate-deps-hash
-      - maybe-restore-portaled-src-cache:
-          could-be-aks: << parameters.could-be-aks >>
-      - run:
-          name: Ensure src checkout worked
-          command: |
-            if [ ! -d "src/third_party/blink" ]; then
-              echo src cache was not restored for some reason, idk what happened here...
-              exit 1
-            fi
-      - run:
-          name: Wipe Electron
-          command: rm -rf src/electron
-      - *step-checkout-electron
-      - *step-run-electron-only-hooks
-      - *step-generate-deps-hash-cleanly
-
-  step-electron-dist-build:
-    parameters:
-      additional-targets:
-        type: string
-        default: ''
-    steps:
-      - run:
-          name: Build dist.zip
-          command: |
-            cd src
-            if [ "$SKIP_DIST_ZIP" != "1" ]; then
-              autoninja -C out/Default electron:electron_dist_zip << parameters.additional-targets >> -j $NUMBER_OF_NINJA_PROCESSES
-              if [ "$CHECK_DIST_MANIFEST" == "1" ]; then
-                if [ "`uname`" == "Linux" ]; then
-                  target_os=linux
-                  if [ x"$TARGET_ARCH" == x ]; then
-                    target_cpu=x64
-                  else
-                    target_cpu="$TARGET_ARCH"
-                  fi
-                else
-                  echo "Unknown system: `uname`"
-                  exit 1
-                fi
-                electron/script/zip_manifests/check-zip-manifest.py out/Default/dist.zip electron/script/zip_manifests/dist_zip.$target_os.$target_cpu.manifest
-              fi
-            fi
-
-  ninja_build_electron:
-    parameters:
-      clean-prebuilt-snapshot:
-        type: boolean
-        default: true
-      build-type:
-        type: string
-
-    steps:
-      - run:
-          name: Electron << parameters.build-type >> build
-          no_output_timeout: 60m
-          command: |
-            cd src
-            NINJA_SUMMARIZE_BUILD=1 autoninja -C out/Default electron -j $NUMBER_OF_NINJA_PROCESSES
-            cp out/Default/.ninja_log out/electron_ninja_log
-            node electron/script/check-symlinks.js
-
-  electron-build:
-    parameters:
-      attach:
-        type: boolean
-        default: false
-      persist:
-        type: boolean
-        default: true
-      persist-checkout:
-        type: boolean
-        default: false
-      checkout:
-        type: boolean
-        default: true
-      checkout-and-assume-cache:
-        type: boolean
-        default: false
-      save-git-cache:
-        type: boolean
-        default: false
-      checkout-to-create-src-cache:
-        type: boolean
-        default: false
-      build:
-        type: boolean
-        default: true
-      restore-src-cache:
-        type: boolean
-        default: true
-      build-nonproprietary-ffmpeg:
-        type: boolean
-        default: true
-      artifact-key:
-        type: string
-      build-type:
-        type: string
-      after-build-and-save:
-        type: steps
-        default: []
-      after-persist:
-        type: steps
-        default: []
-      could-be-aks:
-        type: boolean
-    steps:
-      - when:
-          condition: << parameters.attach >>
-          steps:
-            - attach_workspace:
-                at: .
-            - run: rm -rf src/electron
-      - *step-restore-brew-cache
-      - *step-save-brew-cache
-      - when:
-          condition: << parameters.build >>
-          steps:
-            - *step-setup-rbe-for-build
-      - when:
-          condition: << parameters.checkout-and-assume-cache >>
-          steps:
-            - checkout-from-cache:
-                could-be-aks: << parameters.could-be-aks >>
-      - when:
-          condition: << parameters.checkout >>
-          steps:
-            # Checkout - Copied from steps-checkout
-            - *step-checkout-electron
-            - *step-depot-tools-get
-            - *step-depot-tools-add-to-path
-            - *step-generate-deps-hash
-            - *step-touch-sync-done
-            - when:
-                condition: << parameters.restore-src-cache >>
-                steps:
-                  - maybe-restore-portaled-src-cache:
-                      halt-if-successful: << parameters.checkout-to-create-src-cache >>
-                      could-be-aks: << parameters.could-be-aks >>
-            - aks-specific-step:
-                circle:
-                  - *step-maybe-restore-git-cache
-                aks:
-                  - *step-maybe-restore-git-cache-aks
-                could-be-aks: << parameters.could-be-aks >>
-            - *step-set-git-cache-path
-            - *step-fix-known-hosts-linux
-            # This sync call only runs if .circle-sync-done is an EMPTY file
-            - *step-gclient-sync
-            - store_artifacts:
-                path: patches
-            # These next few steps reset Electron to the correct commit regardless of which cache was restored
-            - run:
-                name: Wipe Electron
-                command: rm -rf src/electron
-            - *step-checkout-electron
-            - *step-run-electron-only-hooks
-            - *step-generate-deps-hash-cleanly
-            - *step-touch-sync-done
-            - when:
-                condition: << parameters.save-git-cache >>
-                steps:
-                  - aks-specific-step:
-                      circle:
-                        - *step-save-git-cache
-                      aks:
-                        - *step-save-git-cache-aks
-                      could-be-aks: << parameters.could-be-aks >>
-            # Mark sync as done _after_ saving the git cache so that it is uploaded
-            # only when the src cache was not present
-            # Their are theoretically two cases for this cache key
-            # 1. `vX-git-cache-DONE-{deps_hash}
-            # 2. `vX-git-cache-EMPTY-{deps_hash}
-            #
-            # Case (1) occurs when the flag file has "DONE" in it
-            # which only occurs when "step-mark-sync-done" is run
-            # or when the src cache was restored successfully as that
-            # flag file contains "DONE" in the src cache.
-            #
-            # Case (2) occurs when the flag file is empty, this occurs
-            # when the src cache was not restored and "step-mark-sync-done"
-            # has not run yet.
-            #
-            # Notably both of these cases also have completely different
-            # gclient cache states.
-            # In (1) the git cache is completely empty as we didn't run
-            # "gclient sync" because the src cache was restored.
-            # In (2) the git cache is full as we had to run "gclient sync"
-            #
-            # This allows us to do make the follow transitive assumption:
-            # In cases where the src cache is restored, saving the git cache
-            # will save an empty cache.  In cases where the src cache is built
-            # during this build the git cache will save a full cache.
-            #
-            # In order words if there is a src cache for a given DEPS hash
-            # the git cache restored will be empty.  But if the src cache
-            # is missing we will restore a useful git cache.
-            - *step-mark-sync-done
-            - *step-minimize-workspace-size-from-checkout
-            - when:
-                condition: << parameters.persist-checkout >>
-                steps:
-                  - persist_to_workspace:
-                      root: .
-                      paths:
-                        - depot_tools
-                        - src
-            - when:
-                condition: << parameters.checkout-to-create-src-cache >>
-                steps:
-                  - run:
-                      name: Move src folder to the cross-OS portal
-                      command: |
-                        sudo mkdir -p /var/portal
-                        sudo chown -R $(id -u):$(id -g) /var/portal
-                        mv ./src /var/portal
-                  - aks-specific-step:
-                      circle:
-                        - *step-save-src-cache
-                      aks:
-                        - *step-save-src-cache-aks
-                      could-be-aks: << parameters.could-be-aks >>
-                  - *step-make-src-cache-marker
-                  - aks-specific-step:
-                      circle:
-                        - *step-save-src-cache-marker
-                      aks:
-                        - *step-save-src-cache-marker-aks
-                      could-be-aks: << parameters.could-be-aks >>
-
-      - when:
-          condition: << parameters.build >>
-          steps:
-            - *step-depot-tools-add-to-path
-            - *step-setup-env-for-build
-
-      - when:
-          condition: << parameters.build >>
-          steps:
-            - build_and_save_artifacts:
-                artifact-key: << parameters.artifact-key >>
-                build-type: << parameters.build-type >>
-                build-nonproprietary-ffmpeg: << parameters.build-nonproprietary-ffmpeg >>
-            - steps: << parameters.after-build-and-save >>
-
-            # Save all data needed for a further tests run.
-            - when:
-                condition: << parameters.persist >>
-                steps:
-                  - *step-minimize-workspace-size-from-checkout
-                  - run: |
-                      rm -rf src/third_party/electron_node/deps/openssl
-                      rm -rf src/third_party/electron_node/deps/v8
-                  - persist_to_workspace:
-                      root: .
-                      paths:
-                        # Build artifacts
-                        - generated_artifacts_<< parameters.artifact-key >>
-                        - src/out/Default/gen/node_headers
-                        - src/out/Default/overlapped-checker
-                        - src/electron
-                        - src/third_party/electron_node
-                        - src/third_party/nan
-                        - src/cross-arch-snapshots
-                        - src/third_party/llvm-build
-                        - src/build/linux
-                        - src/buildtools/third_party/libc++
-                        - src/buildtools/third_party/libc++abi
-                        - src/third_party/libc++
-                        - src/third_party/libc++abi
-                        - src/out/Default/obj/buildtools/third_party
-                        - src/v8/tools/builtins-pgo
-                  - steps: << parameters.after-persist >>
-
-      - when:
-          condition: << parameters.build >>
-          steps:
-            - *step-maybe-notify-slack-failure
-      - when:
-          condition: << parameters.could-be-aks >>
-          steps:
-            - run:
-                name: Wait for active debug sessions
-                command: |
-                  while [ -f /var/.ssh-lock ]
-                  do
-                    sleep 60
-                  done
-                no_output_timeout: 2h
-                when: always
-
-  electron-tests:
-    parameters:
-      artifact-key:
-        type: string
-    steps:
-      - restore_build_artifacts:
-          artifact-key: << parameters.artifact-key >>
-      - *step-depot-tools-add-to-path
-      - *step-electron-dist-unzip
-      - *step-mksnapshot-unzip
-      - *step-chromedriver-unzip
-      - *step-setup-linux-for-headless-testing
-      - *step-restore-brew-cache
-      - *step-fix-known-hosts-linux
-
-      - run:
-          name: Run Electron tests
-          environment:
-            MOCHA_REPORTER: mocha-multi-reporters
-            ELECTRON_TEST_RESULTS_DIR: junit
-            MOCHA_MULTI_REPORTERS: mocha-junit-reporter, tap
-            ELECTRON_DISABLE_SECURITY_WARNINGS: 1
-          command: |
-            cd src
-            if [ "$IS_ASAN" == "1" ]; then
-              ASAN_SYMBOLIZE="$PWD/tools/valgrind/asan/asan_symbolize.py --executable-path=$PWD/out/Default/electron"
-              export ASAN_OPTIONS="symbolize=0 handle_abort=1"
-              export G_SLICE=always-malloc
-              export NSS_DISABLE_ARENA_FREE_LIST=1
-              export NSS_DISABLE_UNLOAD=1
-              export LLVM_SYMBOLIZER_PATH=$PWD/third_party/llvm-build/Release+Asserts/bin/llvm-symbolizer
-              export MOCHA_TIMEOUT=180000
-              echo "Piping output to ASAN_SYMBOLIZE ($ASAN_SYMBOLIZE)"
-              (cd electron && (circleci tests glob "spec/*-spec.ts" | xargs -I@ -P4 bash -c "echo $(pwd)/@" | circleci tests run --command="xargs node script/yarn test --runners=main --trace-uncaught --enable-logging --files" --split-by=timings 2>&1)) | $ASAN_SYMBOLIZE
-            else
-              if [ "$TARGET_ARCH" == "arm" ] || [ "$TARGET_ARCH" == "arm64" ]; then
-                export ELECTRON_SKIP_NATIVE_MODULE_TESTS=true
-              fi
-              if [ "$TARGET_ARCH" == "ia32" ]; then
-                npm_config_arch=x64 node electron/node_modules/dugite/script/download-git.js
-              fi
-              (cd electron && (circleci tests glob "spec/*-spec.ts" | xargs -I@ -P4 bash -c "echo $(pwd)/@" | circleci tests run --command="xargs node script/yarn test --runners=main --trace-uncaught --enable-logging --files" --split-by=timings))
-            fi
-      - store_test_results:
-          path: src/junit
-      - store_artifacts:
-          path: src/electron/spec/artifacts
-
-      - *step-verify-mksnapshot
-      - *step-verify-chromedriver
-
-      - *step-maybe-notify-slack-failure
-
-  nan-tests:
-    parameters:
-      artifact-key:
-        type: string
-    steps:
-      - restore_build_artifacts:
-          artifact-key: << parameters.artifact-key >>
-      - *step-depot-tools-add-to-path
-      - *step-electron-dist-unzip
-      - *step-setup-linux-for-headless-testing
-      - *step-fix-known-hosts-linux
-      - run:
-          name: Run Nan Tests
-          command: |
-            cd src
-            node electron/script/nan-spec-runner.js
-
-  node-tests:
-    parameters:
-      artifact-key:
-        type: string
-    steps:
-      - restore_build_artifacts:
-          artifact-key: << parameters.artifact-key >>
-      - *step-depot-tools-add-to-path
-      - *step-electron-dist-unzip
-      - *step-setup-linux-for-headless-testing
-      - *step-fix-known-hosts-linux
-      - run:
-          name: Run Node Tests
-          command: |
-            cd src
-            node electron/script/node-spec-runner.js --default --jUnitDir=junit
-      - store_test_results:
-          path: src/junit
-
-# List of all jobs.
-jobs:
-  # Layer 0: Docs. Standalone.
-  ts-compile-doc-change:
-    executor:
-      name: linux-docker
-      size: medium
-    environment:
-      <<: *env-linux-2xlarge
-      <<: *env-testing-build
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    <<: *steps-electron-ts-compile-for-doc-change
-
-  # Layer 1: Checkout.
-  linux-make-src-cache:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.large-linux-executor >>
-    environment:
-      <<: *env-linux-2xlarge
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    steps:
-      - electron-build:
-          persist: false
-          build: false
-          checkout: true
-          save-git-cache: true
-          checkout-to-create-src-cache: true
-          artifact-key: 'nil'
-          build-type: 'nil'
-          could-be-aks: true
-
-  # Layer 2: Builds.
-  linux-x64-testing:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.large-linux-executor >>
-    environment:
-      <<: *env-global
-      <<: *env-testing-build
-      <<: *env-ninja-status
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    steps:
-      - electron-build:
-          persist: true
-          checkout: false
-          checkout-and-assume-cache: true
-          artifact-key: 'linux-x64'
-          build-type: 'Linux'
-          could-be-aks: true
-
-  linux-x64-testing-asan:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.large-linux-executor >>
-    environment:
-      <<: *env-global
-      <<: *env-testing-build
-      <<: *env-ninja-status
-      CHECK_DIST_MANIFEST: '0'
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-      GN_EXTRA_ARGS: 'is_asan = true'
-    steps:
-      - electron-build:
-          persist: true
-          checkout: false
-          checkout-and-assume-cache: true
-          build-nonproprietary-ffmpeg: false
-          artifact-key: 'linux-x64-asan'
-          build-type: 'Linux'
-          could-be-aks: true
-
-  linux-x64-testing-gn-check:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.medium-linux-executor >>
-    environment:
-      <<: *env-linux-medium
-      <<: *env-testing-build
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    steps:
-      - run-gn-check:
-          could-be-aks: true
-
-  linux-arm-testing:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.large-linux-executor >>
-    environment:
-      <<: *env-global
-      <<: *env-arm
-      <<: *env-testing-build
-      <<: *env-ninja-status
-      TRIGGER_ARM_TEST: true
-      GENERATE_CROSS_ARCH_SNAPSHOT: true
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    steps:
-      - electron-build:
-          persist: true
-          checkout: false
-          checkout-and-assume-cache: true
-          artifact-key: 'linux-arm'
-          build-type: 'Linux ARM'
-          could-be-aks: true
-
-  linux-arm64-testing:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.large-linux-executor >>
-    environment:
-      <<: *env-global
-      <<: *env-arm64
-      <<: *env-testing-build
-      <<: *env-ninja-status
-      TRIGGER_ARM_TEST: true
-      GENERATE_CROSS_ARCH_SNAPSHOT: true
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    steps:
-      - electron-build:
-          persist: true
-          checkout: false
-          checkout-and-assume-cache: true
-          artifact-key: 'linux-arm64'
-          build-type: 'Linux ARM64'
-          could-be-aks: true
-
-  linux-arm64-testing-gn-check:
-    executor:
-      name: linux-docker
-      size: << pipeline.parameters.medium-linux-executor >>
-    environment:
-      <<: *env-linux-medium
-      <<: *env-arm64
-      <<: *env-testing-build
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    steps:
-      - run-gn-check:
-          could-be-aks: true
-
-  # Layer 3: Tests.
-  linux-x64-testing-tests:
-    executor:
-      name: linux-docker
-      size: medium
-    environment:
-      <<: *env-linux-medium
-      <<: *env-headless-testing
-      <<: *env-stack-dumping
-    parallelism: 3
-    steps:
-      - electron-tests:
-          artifact-key: linux-x64
-
-  linux-x64-testing-asan-tests:
-    executor:
-      name: linux-docker
-      size: xlarge
-    environment:
-      <<: *env-linux-medium
-      <<: *env-headless-testing
-      <<: *env-stack-dumping
-      IS_ASAN: '1'
-      DISABLE_CRASH_REPORTER_TESTS: '1'
-    parallelism: 3
-    steps:
-      - electron-tests:
-          artifact-key: linux-x64-asan
-
-  linux-x64-testing-nan:
-    executor:
-      name: linux-docker
-      size: medium
-    environment:
-      <<: *env-linux-medium
-      <<: *env-headless-testing
-      <<: *env-stack-dumping
-    steps:
-      - nan-tests:
-          artifact-key: linux-x64
-
-  linux-x64-testing-node:
-    executor:
-      name: linux-docker
-      size: xlarge
-    environment:
-      <<: *env-linux-medium
-      <<: *env-headless-testing
-      <<: *env-stack-dumping
-    steps:
-      - node-tests:
-          artifact-key: linux-x64
-
-  linux-arm-testing-tests:
-    executor: linux-arm
-    environment:
-      <<: *env-arm
-      <<: *env-global
-      <<: *env-headless-testing
-      <<: *env-stack-dumping
-    parallelism: 3
-    steps:
-      - electron-tests:
-          artifact-key: linux-arm
-
-  linux-arm64-testing-tests:
-    executor: linux-arm64
-    environment:
-      <<: *env-arm64
-      <<: *env-global
-      <<: *env-headless-testing
-      <<: *env-stack-dumping
-    parallelism: 3
-    steps:
-      - electron-tests:
-          artifact-key: linux-arm64
-
-# List all workflows
-workflows:
-  docs-only:
-    when:
-      and:
-        - equal: [true, << pipeline.parameters.run-docs-only >>]
-    jobs:
-      - ts-compile-doc-change
-
-  build-linux:
-    when:
-      and:
-        - equal: [true, << pipeline.parameters.run-build-linux >>]
-    jobs:
-      - linux-make-src-cache
-      - linux-x64-testing:
-          requires:
-            - linux-make-src-cache
-      - linux-x64-testing-asan:
-          requires:
-            - linux-make-src-cache
-      - linux-x64-testing-gn-check:
-          requires:
-            - linux-make-src-cache
-      - linux-x64-testing-tests:
-          requires:
-            - linux-x64-testing
-      - linux-x64-testing-asan-tests:
-          requires:
-            - linux-x64-testing-asan
-      - linux-x64-testing-nan:
-          requires:
-            - linux-x64-testing
-      - linux-x64-testing-node:
-          requires:
-            - linux-x64-testing
-      - linux-arm-testing:
-          requires:
-            - linux-make-src-cache
-      - linux-arm-testing-tests:
-          filters:
-            branches:
-              # Do not run this on forked pull requests
-              ignore: /pull\/[0-9]+/
-          requires:
-            - linux-arm-testing
-      - linux-arm64-testing:
-          requires:
-            - linux-make-src-cache
-      - linux-arm64-testing-tests:
-          filters:
-            branches:
-              # Do not run this on forked pull requests
-              ignore: /pull\/[0-9]+/
-          requires:
-            - linux-arm64-testing
-      - linux-arm64-testing-gn-check:
-          requires:
-            - linux-make-src-cache
-
-  lint:
-    jobs:
-      - lint
diff --git a/.circleci/config/build.js b/.circleci/config/build.js
deleted file mode 100644
index 4e255608a090..000000000000
--- a/.circleci/config/build.js
+++ /dev/null
@@ -1,34 +0,0 @@
-const cp = require('child_process');
-const fs = require('fs-extra');
-const path = require('path');
-const yaml = require('js-yaml');
-
-const STAGING_DIR = path.resolve(__dirname, '..', 'config-staging');
-
-function copyAndExpand(dir = './') {
-    const absDir = path.resolve(__dirname, dir);
-    const targetDir = path.resolve(STAGING_DIR, dir);
-
-    if (!fs.existsSync(targetDir)) {
-        fs.mkdirSync(targetDir);
-    }
-
-    for (const file of fs.readdirSync(absDir)) {
-        if (!file.endsWith('.yml')) {
-            if (fs.statSync(path.resolve(absDir, file)).isDirectory()) {
-                copyAndExpand(path.join(dir, file));
-            }
-            continue;
-        }
-
-        fs.writeFileSync(path.resolve(targetDir, file), yaml.dump(yaml.load(fs.readFileSync(path.resolve(absDir, file), 'utf8')), {
-            noRefs: true,
-        }));
-    }
-}
-
-if (fs.pathExists(STAGING_DIR)) fs.removeSync(STAGING_DIR);
-copyAndExpand();
-
-const output = cp.spawnSync(process.env.CIRCLECI_BINARY || 'circleci', ['config', 'pack', STAGING_DIR]);
-fs.writeFileSync(path.resolve(STAGING_DIR, 'built.yml'), output.stdout.toString());
diff --git a/.circleci/config/jobs/lint.yml b/.circleci/config/jobs/lint.yml
deleted file mode 100644
index 213756654712..000000000000
--- a/.circleci/config/jobs/lint.yml
+++ /dev/null
@@ -1,51 +0,0 @@
-executor:
-  name: linux-docker
-  size: medium
-steps:
-  - checkout:
-      path: src/electron
-  - run:
-      name: Setup third_party Depot Tools
-      command: |
-        # "depot_tools" has to be checkout into "//third_party/depot_tools" so pylint.py can a "pylintrc" file.
-        git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git src/third_party/depot_tools
-        echo 'export PATH="$PATH:'"$PWD"'/src/third_party/depot_tools"' >> $BASH_ENV
-  - run:
-      name: Download GN Binary
-      command: |
-        chromium_revision="$(grep -A1 chromium_version src/electron/DEPS | tr -d '\n' | cut -d\' -f4)"
-        gn_version="$(curl -sL "https://chromium.googlesource.com/chromium/src/+/${chromium_revision}/DEPS?format=TEXT" | base64 -d | grep gn_version | head -n1 | cut -d\' -f4)"
-
-        cipd ensure -ensure-file - -root . \<<-CIPD
-        \$ServiceURL https://chrome-infra-packages.appspot.com/
-        @Subdir src/buildtools/linux64
-        gn/gn/linux-amd64 $gn_version
-        CIPD
-
-        echo 'export CHROMIUM_BUILDTOOLS_PATH="'"$PWD"'/src/buildtools"' >> $BASH_ENV
-  - run:
-      name: Download clang-format Binary
-      command: |
-        chromium_revision="$(grep -A1 chromium_version src/electron/DEPS | tr -d '\n' | cut -d\' -f4)"
-
-        sha1_path='buildtools/linux64/clang-format.sha1'
-        curl -sL "https://chromium.googlesource.com/chromium/src/+/${chromium_revision}/${sha1_path}?format=TEXT" | base64 -d > "src/${sha1_path}"
-
-        download_from_google_storage.py --no_resume --no_auth --bucket chromium-clang-format -s "src/${sha1_path}"
-  - run:
-      name: Run Lint
-      command: |
-        # gn.py tries to find a gclient root folder starting from the current dir.
-        # When it fails and returns "None" path, the whole script fails. Let's "fix" it.
-        touch .gclient
-        # Another option would be to checkout "buildtools" inside the Electron checkout,
-        # but then we would lint its contents (at least gn format), and it doesn't pass it.
-
-        cd src/electron
-        node script/yarn install --frozen-lockfile
-        node script/yarn lint
-  - run:
-      name: Run Script Typechecker
-      command: |
-        cd src/electron
-        node script/yarn tsc -p tsconfig.script.json
diff --git a/.circleci/config/package.json b/.circleci/config/package.json
deleted file mode 100644
index 054dd7c11cc9..000000000000
--- a/.circleci/config/package.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "name": "@electron/circleci-config",
-  "version": "0.0.0",
-  "private": true,
-  "license": "MIT",
-  "dependencies": {
-    "fs-extra": "^10.1.0",
-    "js-yaml": "^4.1.0"
-  }
-}
diff --git a/.circleci/config/params.js b/.circleci/config/params.js
deleted file mode 100644
index 700689860668..000000000000
--- a/.circleci/config/params.js
+++ /dev/null
@@ -1,12 +0,0 @@
-const fs = require('fs');
-
-const PARAMS_PATH = '/tmp/pipeline-parameters.json';
-
-const content = JSON.parse(fs.readFileSync(PARAMS_PATH, 'utf-8'));
-
-// Choose resource class for linux hosts
-const currentBranch = process.env.CIRCLE_BRANCH || '';
-content['large-linux-executor'] = /^pull\/[0-9-]+$/.test(currentBranch) ? '2xlarge' : 'electronjs/aks-linux-large';
-content['medium-linux-executor'] = /^pull\/[0-9-]+$/.test(currentBranch) ? 'medium' : 'electronjs/aks-linux-medium';
-
-fs.writeFileSync(PARAMS_PATH, JSON.stringify(content));
diff --git a/.circleci/config/yarn.lock b/.circleci/config/yarn.lock
deleted file mode 100644
index 51b2d9877643..000000000000
--- a/.circleci/config/yarn.lock
+++ /dev/null
@@ -1,43 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-argparse@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
-  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
-
-fs-extra@^10.1.0:
-  version "10.1.0"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.1.0.tgz#02873cfbc4084dde127eaa5f9905eef2325d1abf"
-  integrity sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==
-  dependencies:
-    graceful-fs "^4.2.0"
-    jsonfile "^6.0.1"
-    universalify "^2.0.0"
-
-graceful-fs@^4.1.6, graceful-fs@^4.2.0:
-  version "4.2.10"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.10.tgz#147d3a006da4ca3ce14728c7aefc287c367d7a6c"
-  integrity sha512-9ByhssR2fPVsNZj478qUUbKfmL0+t5BDVyjShtyZZLiK7ZDAArFFfopyOTj0M05wE2tJPisA4iTnnXl2YoPvOA==
-
-js-yaml@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.0.tgz#c1fb65f8f5017901cdd2c951864ba18458a10602"
-  integrity sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==
-  dependencies:
-    argparse "^2.0.1"
-
-jsonfile@^6.0.1:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-6.1.0.tgz#bc55b2634793c679ec6403094eb13698a6ec0aae"
-  integrity sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==
-  dependencies:
-    universalify "^2.0.0"
-  optionalDependencies:
-    graceful-fs "^4.1.6"
-
-universalify@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/universalify/-/universalify-2.0.0.tgz#75a4984efedc4b08975c5aeb73f530d02df25717"
-  integrity sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==
diff --git a/.circleci/fix-known-hosts.sh b/.circleci/fix-known-hosts.sh
deleted file mode 100755
index 9820dbf5255f..000000000000
--- a/.circleci/fix-known-hosts.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-set -e
-
-mkdir -p ~/.ssh
-echo "github.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOMqqnkVzrm0SdG6UOoqKLsabgH5C9okWi0dh2l9GKJl
-github.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEmKSENjQEezOmxkZMy7opKgwFB9nkt5YRrYMjNuG5N87uRgg6CLrbo5wAdT/y6v0mKV0U2w0WZ2YB/++Tpockg=
-github.com ssh-rsa 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" >> ~/.ssh/known_hosts
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 54189514f8fd..aed60d7e22f0 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -40,7 +40,6 @@
 				"dbaeumer.vscode-eslint",
 				"shakram02.bash-beautify",
 				"marshallofsound.gnls-electron",
-				"CircleCI.circleci"
 			],
 			"settings": {
 				"editor.tabSize": 2,
diff --git a/.env.example b/.env.example
index 4d218327bd60..9f435578ddda 100644
--- a/.env.example
+++ b/.env.example
@@ -2,5 +2,4 @@
 # See docs/development/releasing.md
 
 APPVEYOR_CLOUD_TOKEN=
-CIRCLE_TOKEN=
 ELECTRON_GITHUB_TOKEN=
diff --git a/README.md b/README.md
index e1406d8b11ea..bc52ab87b115 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 [![Electron Logo](https://electronjs.org/images/electron-logo.svg)](https://electronjs.org)
 
-[![CircleCI Build Status](https://circleci.com/gh/electron/electron/tree/main.svg?style=shield)](https://circleci.com/gh/electron/electron/tree/main)
+[![GitHub Actions Build Status](https://github.com/electron/electron/actions/workflows/build.yml/badge.svg)](https://github.com/electron/electron/actions/workflows/build.yml)
 [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/4lggi9dpjc1qob7k/branch/main?svg=true)](https://ci.appveyor.com/project/electron-bot/electron-ljo26/branch/main)
 [![Electron Discord Invite](https://img.shields.io/discord/745037351163527189?color=%237289DA&label=chat&logo=discord&logoColor=white)](https://discord.gg/electronjs)
 
diff --git a/docs/development/source-code-directory-structure.md b/docs/development/source-code-directory-structure.md
index 8e44e342f5b8..d6c52bd6c307 100644
--- a/docs/development/source-code-directory-structure.md
+++ b/docs/development/source-code-directory-structure.md
@@ -78,8 +78,7 @@ Electron
 
 ## Structure of Other Directories
 
-* **.circleci** - Config file for CI with CircleCI.
-* **.github** - GitHub-specific config files including issues templates and CODEOWNERS.
+* **.github** - GitHub-specific config files including issues templates, CI with GitHub Actions and CODEOWNERS.
 * **dist** - Temporary directory created by `script/create-dist.py` script
   when creating a distribution.
 * **node_modules** - Third party node modules used for building.
diff --git a/script/doc-only-change.js b/script/doc-only-change.js
index 40f25ae64e23..31d5523e5006 100644
--- a/script/doc-only-change.js
+++ b/script/doc-only-change.js
@@ -7,8 +7,7 @@ async function checkIfDocOnlyChange () {
 
   if (prNumber || prURL) {
     try {
-      // CircleCI doesn't provide the PR number except on forked PRs,
-      // so to cover all cases we just extract it from the PR URL.
+      // extract the PR number from the PR URL.
       if (!prNumber || isNaN(prNumber)) {
         if (args.prURL) {
           prNumber = prURL.split('/').pop();
diff --git a/script/download-circleci-artifacts.js b/script/download-circleci-artifacts.js
deleted file mode 100644
index 00e1e9224b1a..000000000000
--- a/script/download-circleci-artifacts.js
+++ /dev/null
@@ -1,72 +0,0 @@
-const args = require('minimist')(process.argv.slice(2));
-const fs = require('node:fs');
-const got = require('got');
-const stream = require('node:stream');
-const { promisify } = require('node:util');
-
-const pipeline = promisify(stream.pipeline);
-
-async function downloadArtifact (name, buildNum, dest) {
-  const circleArtifactUrl = `https://circleci.com/api/v1.1/project/github/electron/electron/${args.buildNum}/artifacts?circle-token=${process.env.CIRCLE_TOKEN}`;
-  const responsePromise = got(circleArtifactUrl, {
-    headers: {
-      'Content-Type': 'application/json',
-      Accept: 'application/json'
-    }
-  });
-  const [response, artifacts] = await Promise.all([responsePromise, responsePromise.json()]);
-  if (response.statusCode !== 200) {
-    console.error('Could not fetch circleci artifact list, got status code:', response.statusCode);
-  }
-  const artifactToDownload = artifacts.find(artifact => {
-    return (artifact.path === name);
-  });
-  if (!artifactToDownload) {
-    console.log(`Could not find artifact called ${name} to download for build #${buildNum}.`);
-    process.exit(1);
-  } else {
-    console.log(`Downloading ${artifactToDownload.url}.`);
-    let downloadError = false;
-    await downloadWithRetry(artifactToDownload.url, dest).catch(err => {
-      if (args.verbose) {
-        console.log(`${artifactToDownload.url} could not be successfully downloaded.  Error was:`, err);
-      } else {
-        console.log(`${artifactToDownload.url} could not be successfully downloaded.`);
-      }
-      downloadError = true;
-    });
-    if (!downloadError) {
-      console.log(`Successfully downloaded ${name}.`);
-    }
-  }
-}
-
-async function downloadWithRetry (url, directory) {
-  let lastError;
-  const downloadURL = `${url}?circle-token=${process.env.CIRCLE_TOKEN}`;
-  for (let i = 0; i < 5; i++) {
-    console.log(`Attempting to download ${url} - attempt #${(i + 1)}`);
-    try {
-      return await downloadFile(downloadURL, directory);
-    } catch (err) {
-      lastError = err;
-      await new Promise(resolve => setTimeout(resolve, 30000));
-    }
-  }
-  throw lastError;
-}
-
-function downloadFile (url, directory) {
-  return pipeline(
-    got.stream(url),
-    fs.createWriteStream(directory)
-  );
-}
-
-if (!args.name || !args.buildNum || !args.dest) {
-  console.log(`Download CircleCI artifacts.
-    Usage: download-circleci-artifacts.js [--buildNum=CIRCLE_BUILD_NUMBER] [--name=artifactName] [--dest] [--verbose]`);
-  process.exit(0);
-} else {
-  downloadArtifact(args.name, args.buildNum, args.dest);
-}
diff --git a/script/push-patch.js b/script/push-patch.js
index 78595bc6e6f1..8a0296c4b9ba 100644
--- a/script/push-patch.js
+++ b/script/push-patch.js
@@ -1,16 +1,6 @@
 const { appCredentialsFromString, getTokenForRepo } = require('@electron/github-app-auth');
 const cp = require('node:child_process');
 
-if (!process.env.CIRCLE_BRANCH) {
-  console.error('Not building for a specific branch, can\'t autopush a patch');
-  process.exit(1);
-}
-
-if (process.env.CIRCLE_PR_NUMBER) {
-  console.error('Building for a forked PR, can\'t autopush a patch');
-  process.exit(1);
-}
-
 async function main () {
   const token = await getTokenForRepo(
     {
diff --git a/spec/api-app-spec.ts b/spec/api-app-spec.ts
index 2c2ee831d5ee..192f8d1fe697 100644
--- a/spec/api-app-spec.ts
+++ b/spec/api-app-spec.ts
@@ -1521,19 +1521,6 @@ describe('app module', () => {
   });
 
   ifdescribe(!(process.platform === 'linux' && (process.arch === 'arm64' || process.arch === 'arm')))('sandbox options', () => {
-    // Our ARM tests are run on VSTS rather than CircleCI, and the Docker
-    // setup on VSTS disallows syscalls that Chrome requires for setting up
-    // sandboxing.
-    // See:
-    // - https://docs.docker.com/engine/security/seccomp/#significant-syscalls-blocked-by-the-default-profile
-    // - https://chromium.googlesource.com/chromium/src/+/70.0.3538.124/sandbox/linux/services/credentials.cc#292
-    // - https://github.com/docker/docker-ce/blob/ba7dfc59ccfe97c79ee0d1379894b35417b40bca/components/engine/profiles/seccomp/seccomp_default.go#L497
-    // - https://blog.jessfraz.com/post/how-to-use-new-docker-seccomp-profiles/
-    //
-    // Adding `--cap-add SYS_ADMIN` or `--security-opt seccomp=unconfined`
-    // to the Docker invocation allows the syscalls that Chrome needs, but
-    // are probably more permissive than we'd like.
-
     let appProcess: cp.ChildProcess = null as any;
     let server: net.Server = null as any;
     const socketPath = process.platform === 'win32' ? '\\\\.\\pipe\\electron-mixed-sandbox' : '/tmp/electron-mixed-sandbox';
diff --git a/spec/api-media-handler-spec.ts b/spec/api-media-handler-spec.ts
index 5b4b4aece2f2..0a0319e1a55e 100644
--- a/spec/api-media-handler-spec.ts
+++ b/spec/api-media-handler-spec.ts
@@ -21,10 +21,6 @@ describe('setDisplayMediaRequestHandler', () => {
     server.close();
   });
 
-  // FIXME(nornagon): this test fails on our macOS CircleCI runners with the
-  // error message:
-  // [ERROR:video_capture_device_client.cc(659)] error@ OnStart@content/browser/media/capture/desktop_capture_device_mac.cc:98, CGDisplayStreamCreate failed, OS message: Value too large to be stored in data type (84)
-  // This is possibly related to the OS/VM setup that CircleCI uses for macOS.
   ifit(process.platform !== 'darwin')('works when calling getDisplayMedia', async function () {
     if ((await desktopCapturer.getSources({ types: ['screen'] })).length === 0) {
       return this.skip();
diff --git a/spec/lib/codesign-helpers.ts b/spec/lib/codesign-helpers.ts
index a78411b8867e..2de425e5453b 100644
--- a/spec/lib/codesign-helpers.ts
+++ b/spec/lib/codesign-helpers.ts
@@ -18,11 +18,6 @@ export function getCodesignIdentity () {
   if (identity === undefined) {
     const result = cp.spawnSync(path.resolve(__dirname, '../../script/codesign/get-trusted-identity.sh'));
     if (result.status !== 0 || result.stdout.toString().trim().length === 0) {
-      // Per https://circleci.com/docs/2.0/env-vars:
-      // CIRCLE_PR_NUMBER is only present on forked PRs
-      if (process.env.CI && !process.env.CIRCLE_PR_NUMBER) {
-        throw new Error('No valid signing identity available to run autoUpdater specs');
-      }
       identity = null;
     } else {
       identity = result.stdout.toString().trim();
diff --git a/spec/version-bump-spec.ts b/spec/version-bump-spec.ts
index 3541e3fe2875..9c2e8039dcdb 100644
--- a/spec/version-bump-spec.ts
+++ b/spec/version-bump-spec.ts
@@ -90,8 +90,6 @@ describe('version-bumper', () => {
     });
   });
 
-  // On macOS Circle CI we don't have a real git environment due to running
-  // gclient sync on a linux machine. These tests therefore don't run as expected.
   ifdescribe(!(process.platform === 'linux' && process.arch.indexOf('arm') === 0) && process.platform !== 'darwin')('nextVersion', () => {
     describe('bump versions', () => {
       const nightlyPattern = /[0-9.]*(-nightly.(\d{4})(\d{2})(\d{2}))$/g;