diff --git a/.github/actions/broken-symlinks-check/action.yml b/.github/actions/broken-symlinks-check/action.yml
deleted file mode 100644
index 988226b1..00000000
--- a/.github/actions/broken-symlinks-check/action.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: broken-symlink-check
-description: Check for broken symbolic links
-runs:
-  using: composite
-  steps:
-    - name: Run broken symlink check
-      shell: bash
-      run: $GITHUB_ACTION_PATH/check-broken-symlinks.sh
diff --git a/.github/actions/broken-symlinks-check/check-broken-symlinks.sh b/.github/actions/broken-symlinks-check/check-broken-symlinks.sh
deleted file mode 100755
index 570cbdb7..00000000
--- a/.github/actions/broken-symlinks-check/check-broken-symlinks.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the Swift.org open source project
-##
-## Copyright (c) 2024 Apple Inc. and the Swift project authors
-## Licensed under Apache License v2.0 with Runtime Library Exception
-##
-## See https://swift.org/LICENSE.txt for license information
-## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
-##
-##===----------------------------------------------------------------------===##
-
-set -euo pipefail
-
-log() { printf -- "** %s\n" "$*" >&2; }
-error() { printf -- "** ERROR: %s\n" "$*" >&2; }
-fatal() { error "$@"; exit 1; }
-
-log "Checking for broken symlinks..."
-num_broken_symlinks=0
-while read -r -d '' file; do
-  if ! test -e "./${file}"; then
-    error "Broken symlink: ${file}"
-    ((num_broken_symlinks++))
-  fi
-done < <(git ls-files -z)
-
-if [ "${num_broken_symlinks}" -gt 0 ]; then
-  fatal "❌ Found ${num_broken_symlinks} symlinks."
-fi
-
-log "✅ Found 0 symlinks."
diff --git a/.github/actions/check-unacceptable-language/action.yml b/.github/actions/check-unacceptable-language/action.yml
deleted file mode 100644
index dbefa77d..00000000
--- a/.github/actions/check-unacceptable-language/action.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: check-unacceptable-language
-description: Check Language Format
-runs:
-  using: composite
-  steps:
-    - name: Run unacceptable language check
-      shell: bash
-      run: $GITHUB_ACTION_PATH/check-unacceptable-language.sh
diff --git a/.github/actions/check-unacceptable-language/check-unacceptable-language.sh b/.github/actions/check-unacceptable-language/check-unacceptable-language.sh
deleted file mode 100755
index 2a694650..00000000
--- a/.github/actions/check-unacceptable-language/check-unacceptable-language.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the Swift.org open source project
-##
-## Copyright (c) 2024 Apple Inc. and the Swift project authors
-## Licensed under Apache License v2.0 with Runtime Library Exception
-##
-## See https://swift.org/LICENSE.txt for license information
-## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
-##
-##===----------------------------------------------------------------------===##
-
-set -euo pipefail
-
-log() { printf -- "** %s\n" "$*" >&2; }
-error() { printf -- "** ERROR: %s\n" "$*" >&2; }
-fatal() { error "$@"; exit 1; }
-
-test -n "${UNACCEPTABLE_WORD_LIST:-}" || fatal "UNACCEPTABLE_WORD_LIST unset"
-
-unacceptable_language_lines=
-if [[ -f .unacceptablelanguageignore ]]; then
-    log "Found unacceptable language ignore file..."
-    log "Checking for unacceptable language..."
-    unacceptable_language_lines=$(tr '\n' '\0' < .unacceptablelanguageignore | xargs -0 -I% printf '":(exclude)%" '| xargs git grep -i -I -w -H -n --column -E "${UNACCEPTABLE_WORD_LIST// /|}" -- ':!*.unacceptablelanguageignore' | grep -v "ignore-unacceptable-language") || true | /usr/bin/paste -s -d " " -
-else
-    log "Checking for unacceptable language..."
-    unacceptable_language_lines=$(git grep -i -I -w -H -n --column -E "${UNACCEPTABLE_WORD_LIST// /|}" | grep -v "ignore-unacceptable-language") || true | /usr/bin/paste -s -d " " -
-fi
-
-if [ -n "${unacceptable_language_lines}" ]; then
-    fatal " ❌ Found unacceptable language:
-${unacceptable_language_lines}
-"
-fi
-
-
-log "✅ Found no unacceptable language."
diff --git a/.github/actions/docs-check/action.yml b/.github/actions/docs-check/action.yml
deleted file mode 100644
index 118e1f93..00000000
--- a/.github/actions/docs-check/action.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: docs-check
-description: Check Docs
-runs:
-  using: composite
-  steps:
-    - name: Run docs check
-      shell: bash
-      run: $GITHUB_ACTION_PATH/check-docs.sh
diff --git a/.github/actions/docs-check/check-docs.sh b/.github/actions/docs-check/check-docs.sh
deleted file mode 100755
index d0becf00..00000000
--- a/.github/actions/docs-check/check-docs.sh
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the Swift.org open source project
-##
-## Copyright (c) 2025 Apple Inc. and the Swift project authors
-## Licensed under Apache License v2.0 with Runtime Library Exception
-##
-## See https://swift.org/LICENSE.txt for license information
-## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
-##
-##===----------------------------------------------------------------------===##
-
-set -euo pipefail
-
-log() { printf -- "** %s\n" "$*" >&2; }
-error() { printf -- "** ERROR: %s\n" "$*" >&2; }
-fatal() { error "$@"; exit 1; }
-
-if [ ! -f .spi.yml ]; then
-  log "No '.spi.yml' found, no documentation targets to check."
-  exit 0
-fi
-
-if ! command -v yq &> /dev/null; then
-  case "$(uname -s)" in
-  Darwin*) brew install yq;;
-  Linux*) apt -q update && apt -yq install yq;;
-  esac
-fi
-
-package_files=$(find . -maxdepth 1 -name 'Package*.swift')
-if [ -z "$package_files" ]; then
-  fatal "Package.swift not found. Please ensure you are running this script from the root of a Swift package."
-fi
-
-# yq 3.1.0-3 doesn't have filter, otherwise we could replace the grep call with "filter(.identity == "swift-docc-plugin") | keys | .[]"
-hasDoccPlugin=$(swift package dump-package | yq -r '.dependencies[].sourceControl' | grep -e "\"identity\": \"swift-docc-plugin\"" || true)
-if [[ -n $hasDoccPlugin ]]
-then
-    log "swift-docc-plugin already exists"
-else
-    log "Appending swift-docc-plugin"
-    for package_file in $package_files; do
-      log "Editing $package_file..."
-      cat <<EOF >> "$package_file"
-
-package.dependencies.append(
-    .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.0.0")
-)
-EOF
-    done
-fi
-
-log "Checking documentation targets..."
-for target in $(yq -r '.builder.configs[].documentation_targets[]' .spi.yml); do
-  log "Checking target $target..."
-  # shellcheck disable=SC2086 # We explicitly want to explode "$ADDITIONAL_DOCC_ARGUMENTS" into multiple arguments.
-  swift package plugin generate-documentation --target "$target" --warnings-as-errors --analyze $ADDITIONAL_DOCC_ARGUMENTS
-done
-
-log "✅ Found no documentation issues."
diff --git a/.github/actions/format-check/action.yml b/.github/actions/format-check/action.yml
deleted file mode 100644
index 0d7fc86f..00000000
--- a/.github/actions/format-check/action.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: format-check
-description: Check Swift Format
-runs:
-  using: composite
-  steps:
-    - name: Run format check
-      shell: bash
-      run: $GITHUB_ACTION_PATH/check-swift-format.sh
diff --git a/.github/actions/format-check/check-swift-format.sh b/.github/actions/format-check/check-swift-format.sh
deleted file mode 100755
index fb6d351b..00000000
--- a/.github/actions/format-check/check-swift-format.sh
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the Swift.org open source project
-##
-## Copyright (c) 2024 Apple Inc. and the Swift project authors
-## Licensed under Apache License v2.0 with Runtime Library Exception
-##
-## See https://swift.org/LICENSE.txt for license information
-## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
-##
-##===----------------------------------------------------------------------===##
-
-set -euo pipefail
-
-log() { printf -- "** %s\n" "$*" >&2; }
-error() { printf -- "** ERROR: %s\n" "$*" >&2; }
-fatal() { error "$@"; exit 1; }
-
-
-if [[ -f .swiftformatignore ]]; then
-    log "Found swiftformatignore file..."
-
-    log "Running swift-format format..."
-    tr '\n' '\0' < .swiftformatignore| xargs -0 -I% printf '":(exclude)%" '| xargs git ls-files -z '*.swift' | xargs -0 swift-format format --parallel --in-place
-
-    log "Running swift-format lint..."
-
-    tr '\n' '\0' < .swiftformatignore | xargs -0 -I% printf '":(exclude)%" '| xargs git ls-files -z '*.swift' | xargs -0 swift-format lint --strict --parallel
-else
-    log "Running swift-format format..."
-    git ls-files -z '*.swift' | xargs -0 swift-format format --parallel --in-place
-
-    log "Running swift-format lint..."
-
-    git ls-files -z '*.swift' | xargs -0 swift-format lint --strict --parallel
-fi
-
-
-
-log "Checking for modified files..."
-
-GIT_PAGER='' git diff --exit-code '*.swift'
-
-log "✅ Found no formatting issues."
diff --git a/.github/actions/license-header-check/action.yml b/.github/actions/license-header-check/action.yml
deleted file mode 100644
index c78892b3..00000000
--- a/.github/actions/license-header-check/action.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: license-header-check
-description: Check License Headers
-runs:
-  using: composite
-  steps:
-    - name: Run license header check
-      shell: bash
-      run: $GITHUB_ACTION_PATH/check-license-header.sh
diff --git a/.github/actions/license-header-check/check-license-header.sh b/.github/actions/license-header-check/check-license-header.sh
deleted file mode 100755
index 2677b084..00000000
--- a/.github/actions/license-header-check/check-license-header.sh
+++ /dev/null
@@ -1,137 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the Swift.org open source project
-##
-## Copyright (c) 2024 Apple Inc. and the Swift project authors
-## Licensed under Apache License v2.0 with Runtime Library Exception
-##
-## See https://swift.org/LICENSE.txt for license information
-## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
-##
-##===----------------------------------------------------------------------===##
-
-set -euo pipefail
-
-log() { printf -- "** %s\n" "$*" >&2; }
-error() { printf -- "** ERROR: %s\n" "$*" >&2; }
-fatal() { error "$@"; exit 1; }
-
-if [ -f .license_header_template ]; then
-  # allow projects to override the license header template
-  expected_file_header_template=$(cat .license_header_template)
-else
-  test -n "${PROJECT_NAME:-}" || fatal "PROJECT_NAME unset"
-  expected_file_header_template="@@===----------------------------------------------------------------------===@@
-@@
-@@ This source file is part of the ${PROJECT_NAME} open source project
-@@
-@@ Copyright (c) YEARS Apple Inc. and the ${PROJECT_NAME} project authors
-@@ Licensed under Apache License v2.0
-@@
-@@ See LICENSE.txt for license information
-@@ See CONTRIBUTORS.txt for the list of ${PROJECT_NAME} project authors
-@@
-@@ SPDX-License-Identifier: Apache-2.0
-@@
-@@===----------------------------------------------------------------------===@@"
-fi
-
-paths_with_missing_license=( )
-
-if [[ -f .licenseignore ]]; then
-  static_exclude_list='":(exclude).licenseignore" ":(exclude).license_header_template" '
-  dynamic_exclude_list=$(tr '\n' '\0' < .licenseignore | xargs -0 -I% printf '":(exclude)%" ')
-  exclude_list=$static_exclude_list$dynamic_exclude_list
-else
-  exclude_list=":(exclude).license_header_template"
-fi
-
-file_paths=$(echo "$exclude_list" | xargs git ls-files)
-
-while IFS= read -r file_path; do
-  file_basename=$(basename -- "${file_path}")
-  file_extension="${file_basename##*.}"
-  if [[ -L "${file_path}" ]]; then
-    continue  # Ignore symbolic links
-  fi
-
-  # The characters that are used to start a line comment and that replace '@@' in the license header template
-  comment_marker=''
-  # A line that we expect before the license header. This should end with a newline if it is not empty
-  header_prefix=''
-  # shellcheck disable=SC2001 # We prefer to use sed here instead of bash search/replace
-  case "${file_extension}" in
-    bazel) comment_marker='##' ;;
-    bazelrc) comment_marker='##' ;;
-    bzl) comment_marker='##' ;;
-    c) comment_marker='//' ;;
-    cpp) comment_marker='//' ;;
-    cmake) comment_marker='##' ;;
-    code-workspace) continue ;;  # VS Code workspaces are JSON and shouldn't contain comments
-    CODEOWNERS) continue ;;  # Doesn't need a license header
-    Dockerfile) comment_marker='##' ;;
-    editorconfig) comment_marker='##' ;;
-    flake8) continue ;; # Configuration file doesn't need a license header
-    gitattributes) continue ;; # Configuration files don't need license headers
-    gitignore) continue ;; # Configuration files don't need license headers
-    gradle) comment_marker='//' ;;
-    groovy) comment_marker='//' ;;
-    gyb) comment_marker='//' ;;
-    h) comment_marker='//' ;;
-    in) comment_marker='##' ;;
-    java) comment_marker='//' ;;
-    js) comment_marker='//' ;;
-    json) continue ;; # JSON doesn't support line comments
-    jsx) comment_marker='//' ;;
-    kts) comment_marker='//' ;;
-    kt) comment_marker='//' ;;
-    md) continue ;; # Text files don't need license headers
-    mobileconfig) continue ;; # Doesn't support comments
-    modulemap) continue ;; # Configuration file doesn't need a license header
-    plist) continue ;; # Plists don't support line comments
-    proto) comment_marker='//' ;;
-    ps1) comment_marker='##' ;;
-    psm1) comment_marker='##' ;;
-    py) comment_marker='##'; header_prefix=$'#!/usr/bin/env python3\n' ;;
-    rb) comment_marker='##'; header_prefix=$'#!/usr/bin/env ruby\n' ;;
-    sh) comment_marker='##'; header_prefix=$'#!/bin/bash\n' ;;
-    strings) comment_marker='//' ;;
-    swift-format) continue ;; # .swift-format is JSON and doesn't support comments
-    swift) comment_marker='//' ;;
-    toml) comment_marker='##' ;;
-    ts) comment_marker='//' ;;
-    tsx) comment_marker='//' ;;
-    txt) continue ;; # Text files don't need license headers
-    yml) continue ;; # YAML Configuration files don't need license headers
-    yaml) continue ;; # YAML Configuration files don't need license headers
-    xcbuildrules) comment_marker='//' ;;
-    xcspec) comment_marker='//' ;;
-    *)
-      error "Unsupported file extension ${file_extension} for file (exclude or update this script): ${file_path}"
-      paths_with_missing_license+=("${file_path} ")
-      continue
-      ;;
-  esac
-  expected_file_header=$(echo "${header_prefix}${expected_file_header_template}" | sed -e "s|@@|$comment_marker|g")
-  expected_file_header_linecount=$(echo "${expected_file_header}" | wc -l)
-
-  file_header=$(head -n "${expected_file_header_linecount}" "${file_path}")
-  normalized_file_header=$(
-    echo "${file_header}" \
-    | sed -E -e 's/20[12][0123456789] ?[-–] ?20[12][0123456789]/YEARS/' -e 's/20[12][0123456789]/YEARS/' \
-  )
-
-  if ! diff -u \
-    --label "Expected header" <(echo "${expected_file_header}") \
-    --label "${file_path}" <(echo "${normalized_file_header}")
-  then
-    paths_with_missing_license+=("${file_path} ")
-  fi
-done <<< "$file_paths"
-
-if [ "${#paths_with_missing_license[@]}" -gt 0 ]; then
-  fatal "❌ Found missing license header in files: ${paths_with_missing_license[*]}."
-fi
-
-log "✅ Found no files with missing license header."
diff --git a/.github/actions/python-lint-check/.flake8 b/.github/actions/python-lint-check/.flake8
deleted file mode 100644
index c7b743c5..00000000
--- a/.github/actions/python-lint-check/.flake8
+++ /dev/null
@@ -1,10 +0,0 @@
-[flake8]
-
-ignore =
-    # These are needed to make our license headers pass the linting
-    E265,
-    E266,
-
-# 10% larger than the standard 80 character limit. Conforms to the black
-# standard and Bugbear's B950.
-max-line-length = 88
diff --git a/.github/actions/python-lint-check/action.yml b/.github/actions/python-lint-check/action.yml
deleted file mode 100644
index ac010f43..00000000
--- a/.github/actions/python-lint-check/action.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-name: python-lint-check
-description: Check python files
-runs:
-  using: composite
-  steps:
-    - name: Install flake
-      shell: bash
-      run: pip3 install flake8 flake8-import-order
-    - name: Copy flake8 config
-      shell: bash
-      run: cp $GITHUB_ACTION_PATH/.flake8 .flake8
-    - name: Run flake8
-      shell: bash
-      run: flake8
diff --git a/.github/actions/yamllint-check/action.yml b/.github/actions/yamllint-check/action.yml
deleted file mode 100644
index 6a956d45..00000000
--- a/.github/actions/yamllint-check/action.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-name: yamllint-check
-description: Check yaml files
-runs:
-  using: composite
-  steps:
-    - name: Install yamllint
-      shell: bash
-      run: which yamllint || (apt -q update && apt install -yq yamllint)
-    - name: Run yaml lint
-      shell: bash
-      run: yamllint --strict --config-file $GITHUB_ACTION_PATH/yamllint.yml .
diff --git a/.github/actions/yamllint-check/yamllint.yml b/.github/actions/yamllint-check/yamllint.yml
deleted file mode 100644
index 52a1770f..00000000
--- a/.github/actions/yamllint-check/yamllint.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-extends: default
-
-rules:
-  line-length: false
-  document-start: false
-  truthy:
-    check-keys: false  # Otherwise we get a false positive on GitHub action's `on` key
diff --git a/.github/workflows/configs/.flake8 b/.github/workflows/configs/.flake8
deleted file mode 120000
index 1fa4dde4..00000000
--- a/.github/workflows/configs/.flake8
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/python-lint-check/.flake8
\ No newline at end of file
diff --git a/.github/workflows/configs/.flake8 b/.github/workflows/configs/.flake8
new file mode 100644
index 00000000..c7b743c5
--- /dev/null
+++ b/.github/workflows/configs/.flake8
@@ -0,0 +1,10 @@
+[flake8]
+
+ignore =
+    # These are needed to make our license headers pass the linting
+    E265,
+    E266,
+
+# 10% larger than the standard 80 character limit. Conforms to the black
+# standard and Bugbear's B950.
+max-line-length = 88
diff --git a/.github/workflows/configs/yamllint.yml b/.github/workflows/configs/yamllint.yml
deleted file mode 120000
index f193167d..00000000
--- a/.github/workflows/configs/yamllint.yml
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/yamllint-check/yamllint.yml
\ No newline at end of file
diff --git a/.github/workflows/configs/yamllint.yml b/.github/workflows/configs/yamllint.yml
new file mode 100644
index 00000000..52a1770f
--- /dev/null
+++ b/.github/workflows/configs/yamllint.yml
@@ -0,0 +1,7 @@
+extends: default
+
+rules:
+  line-length: false
+  document-start: false
+  truthy:
+    check-keys: false  # Otherwise we get a false positive on GitHub action's `on` key
diff --git a/.github/workflows/scripts/check-broken-symlinks.sh b/.github/workflows/scripts/check-broken-symlinks.sh
deleted file mode 120000
index 2f30ee85..00000000
--- a/.github/workflows/scripts/check-broken-symlinks.sh
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/broken-symlinks-check/check-broken-symlinks.sh
\ No newline at end of file
diff --git a/.github/workflows/scripts/check-broken-symlinks.sh b/.github/workflows/scripts/check-broken-symlinks.sh
new file mode 100755
index 00000000..570cbdb7
--- /dev/null
+++ b/.github/workflows/scripts/check-broken-symlinks.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+log "Checking for broken symlinks..."
+num_broken_symlinks=0
+while read -r -d '' file; do
+  if ! test -e "./${file}"; then
+    error "Broken symlink: ${file}"
+    ((num_broken_symlinks++))
+  fi
+done < <(git ls-files -z)
+
+if [ "${num_broken_symlinks}" -gt 0 ]; then
+  fatal "❌ Found ${num_broken_symlinks} symlinks."
+fi
+
+log "✅ Found 0 symlinks."
diff --git a/.github/workflows/scripts/check-docs.sh b/.github/workflows/scripts/check-docs.sh
deleted file mode 120000
index 57f98b5a..00000000
--- a/.github/workflows/scripts/check-docs.sh
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/docs-check/check-docs.sh
\ No newline at end of file
diff --git a/.github/workflows/scripts/check-docs.sh b/.github/workflows/scripts/check-docs.sh
new file mode 100755
index 00000000..d0becf00
--- /dev/null
+++ b/.github/workflows/scripts/check-docs.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2025 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+if [ ! -f .spi.yml ]; then
+  log "No '.spi.yml' found, no documentation targets to check."
+  exit 0
+fi
+
+if ! command -v yq &> /dev/null; then
+  case "$(uname -s)" in
+  Darwin*) brew install yq;;
+  Linux*) apt -q update && apt -yq install yq;;
+  esac
+fi
+
+package_files=$(find . -maxdepth 1 -name 'Package*.swift')
+if [ -z "$package_files" ]; then
+  fatal "Package.swift not found. Please ensure you are running this script from the root of a Swift package."
+fi
+
+# yq 3.1.0-3 doesn't have filter, otherwise we could replace the grep call with "filter(.identity == "swift-docc-plugin") | keys | .[]"
+hasDoccPlugin=$(swift package dump-package | yq -r '.dependencies[].sourceControl' | grep -e "\"identity\": \"swift-docc-plugin\"" || true)
+if [[ -n $hasDoccPlugin ]]
+then
+    log "swift-docc-plugin already exists"
+else
+    log "Appending swift-docc-plugin"
+    for package_file in $package_files; do
+      log "Editing $package_file..."
+      cat <<EOF >> "$package_file"
+
+package.dependencies.append(
+    .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.0.0")
+)
+EOF
+    done
+fi
+
+log "Checking documentation targets..."
+for target in $(yq -r '.builder.configs[].documentation_targets[]' .spi.yml); do
+  log "Checking target $target..."
+  # shellcheck disable=SC2086 # We explicitly want to explode "$ADDITIONAL_DOCC_ARGUMENTS" into multiple arguments.
+  swift package plugin generate-documentation --target "$target" --warnings-as-errors --analyze $ADDITIONAL_DOCC_ARGUMENTS
+done
+
+log "✅ Found no documentation issues."
diff --git a/.github/workflows/scripts/check-license-header.sh b/.github/workflows/scripts/check-license-header.sh
deleted file mode 120000
index f23cfb07..00000000
--- a/.github/workflows/scripts/check-license-header.sh
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/license-header-check/check-license-header.sh
\ No newline at end of file
diff --git a/.github/workflows/scripts/check-license-header.sh b/.github/workflows/scripts/check-license-header.sh
new file mode 100755
index 00000000..2677b084
--- /dev/null
+++ b/.github/workflows/scripts/check-license-header.sh
@@ -0,0 +1,137 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+if [ -f .license_header_template ]; then
+  # allow projects to override the license header template
+  expected_file_header_template=$(cat .license_header_template)
+else
+  test -n "${PROJECT_NAME:-}" || fatal "PROJECT_NAME unset"
+  expected_file_header_template="@@===----------------------------------------------------------------------===@@
+@@
+@@ This source file is part of the ${PROJECT_NAME} open source project
+@@
+@@ Copyright (c) YEARS Apple Inc. and the ${PROJECT_NAME} project authors
+@@ Licensed under Apache License v2.0
+@@
+@@ See LICENSE.txt for license information
+@@ See CONTRIBUTORS.txt for the list of ${PROJECT_NAME} project authors
+@@
+@@ SPDX-License-Identifier: Apache-2.0
+@@
+@@===----------------------------------------------------------------------===@@"
+fi
+
+paths_with_missing_license=( )
+
+if [[ -f .licenseignore ]]; then
+  static_exclude_list='":(exclude).licenseignore" ":(exclude).license_header_template" '
+  dynamic_exclude_list=$(tr '\n' '\0' < .licenseignore | xargs -0 -I% printf '":(exclude)%" ')
+  exclude_list=$static_exclude_list$dynamic_exclude_list
+else
+  exclude_list=":(exclude).license_header_template"
+fi
+
+file_paths=$(echo "$exclude_list" | xargs git ls-files)
+
+while IFS= read -r file_path; do
+  file_basename=$(basename -- "${file_path}")
+  file_extension="${file_basename##*.}"
+  if [[ -L "${file_path}" ]]; then
+    continue  # Ignore symbolic links
+  fi
+
+  # The characters that are used to start a line comment and that replace '@@' in the license header template
+  comment_marker=''
+  # A line that we expect before the license header. This should end with a newline if it is not empty
+  header_prefix=''
+  # shellcheck disable=SC2001 # We prefer to use sed here instead of bash search/replace
+  case "${file_extension}" in
+    bazel) comment_marker='##' ;;
+    bazelrc) comment_marker='##' ;;
+    bzl) comment_marker='##' ;;
+    c) comment_marker='//' ;;
+    cpp) comment_marker='//' ;;
+    cmake) comment_marker='##' ;;
+    code-workspace) continue ;;  # VS Code workspaces are JSON and shouldn't contain comments
+    CODEOWNERS) continue ;;  # Doesn't need a license header
+    Dockerfile) comment_marker='##' ;;
+    editorconfig) comment_marker='##' ;;
+    flake8) continue ;; # Configuration file doesn't need a license header
+    gitattributes) continue ;; # Configuration files don't need license headers
+    gitignore) continue ;; # Configuration files don't need license headers
+    gradle) comment_marker='//' ;;
+    groovy) comment_marker='//' ;;
+    gyb) comment_marker='//' ;;
+    h) comment_marker='//' ;;
+    in) comment_marker='##' ;;
+    java) comment_marker='//' ;;
+    js) comment_marker='//' ;;
+    json) continue ;; # JSON doesn't support line comments
+    jsx) comment_marker='//' ;;
+    kts) comment_marker='//' ;;
+    kt) comment_marker='//' ;;
+    md) continue ;; # Text files don't need license headers
+    mobileconfig) continue ;; # Doesn't support comments
+    modulemap) continue ;; # Configuration file doesn't need a license header
+    plist) continue ;; # Plists don't support line comments
+    proto) comment_marker='//' ;;
+    ps1) comment_marker='##' ;;
+    psm1) comment_marker='##' ;;
+    py) comment_marker='##'; header_prefix=$'#!/usr/bin/env python3\n' ;;
+    rb) comment_marker='##'; header_prefix=$'#!/usr/bin/env ruby\n' ;;
+    sh) comment_marker='##'; header_prefix=$'#!/bin/bash\n' ;;
+    strings) comment_marker='//' ;;
+    swift-format) continue ;; # .swift-format is JSON and doesn't support comments
+    swift) comment_marker='//' ;;
+    toml) comment_marker='##' ;;
+    ts) comment_marker='//' ;;
+    tsx) comment_marker='//' ;;
+    txt) continue ;; # Text files don't need license headers
+    yml) continue ;; # YAML Configuration files don't need license headers
+    yaml) continue ;; # YAML Configuration files don't need license headers
+    xcbuildrules) comment_marker='//' ;;
+    xcspec) comment_marker='//' ;;
+    *)
+      error "Unsupported file extension ${file_extension} for file (exclude or update this script): ${file_path}"
+      paths_with_missing_license+=("${file_path} ")
+      continue
+      ;;
+  esac
+  expected_file_header=$(echo "${header_prefix}${expected_file_header_template}" | sed -e "s|@@|$comment_marker|g")
+  expected_file_header_linecount=$(echo "${expected_file_header}" | wc -l)
+
+  file_header=$(head -n "${expected_file_header_linecount}" "${file_path}")
+  normalized_file_header=$(
+    echo "${file_header}" \
+    | sed -E -e 's/20[12][0123456789] ?[-–] ?20[12][0123456789]/YEARS/' -e 's/20[12][0123456789]/YEARS/' \
+  )
+
+  if ! diff -u \
+    --label "Expected header" <(echo "${expected_file_header}") \
+    --label "${file_path}" <(echo "${normalized_file_header}")
+  then
+    paths_with_missing_license+=("${file_path} ")
+  fi
+done <<< "$file_paths"
+
+if [ "${#paths_with_missing_license[@]}" -gt 0 ]; then
+  fatal "❌ Found missing license header in files: ${paths_with_missing_license[*]}."
+fi
+
+log "✅ Found no files with missing license header."
diff --git a/.github/workflows/scripts/check-swift-format.sh b/.github/workflows/scripts/check-swift-format.sh
deleted file mode 120000
index d801f2a2..00000000
--- a/.github/workflows/scripts/check-swift-format.sh
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/format-check/check-swift-format.sh
\ No newline at end of file
diff --git a/.github/workflows/scripts/check-swift-format.sh b/.github/workflows/scripts/check-swift-format.sh
new file mode 100755
index 00000000..fb6d351b
--- /dev/null
+++ b/.github/workflows/scripts/check-swift-format.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+
+if [[ -f .swiftformatignore ]]; then
+    log "Found swiftformatignore file..."
+
+    log "Running swift-format format..."
+    tr '\n' '\0' < .swiftformatignore| xargs -0 -I% printf '":(exclude)%" '| xargs git ls-files -z '*.swift' | xargs -0 swift-format format --parallel --in-place
+
+    log "Running swift-format lint..."
+
+    tr '\n' '\0' < .swiftformatignore | xargs -0 -I% printf '":(exclude)%" '| xargs git ls-files -z '*.swift' | xargs -0 swift-format lint --strict --parallel
+else
+    log "Running swift-format format..."
+    git ls-files -z '*.swift' | xargs -0 swift-format format --parallel --in-place
+
+    log "Running swift-format lint..."
+
+    git ls-files -z '*.swift' | xargs -0 swift-format lint --strict --parallel
+fi
+
+
+
+log "Checking for modified files..."
+
+GIT_PAGER='' git diff --exit-code '*.swift'
+
+log "✅ Found no formatting issues."
diff --git a/.github/workflows/scripts/check-unacceptable-language.sh b/.github/workflows/scripts/check-unacceptable-language.sh
deleted file mode 120000
index 76efc5cf..00000000
--- a/.github/workflows/scripts/check-unacceptable-language.sh
+++ /dev/null
@@ -1 +0,0 @@
-../../actions/check-unacceptable-language/check-unacceptable-language.sh
\ No newline at end of file
diff --git a/.github/workflows/scripts/check-unacceptable-language.sh b/.github/workflows/scripts/check-unacceptable-language.sh
new file mode 100755
index 00000000..2a694650
--- /dev/null
+++ b/.github/workflows/scripts/check-unacceptable-language.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+test -n "${UNACCEPTABLE_WORD_LIST:-}" || fatal "UNACCEPTABLE_WORD_LIST unset"
+
+unacceptable_language_lines=
+if [[ -f .unacceptablelanguageignore ]]; then
+    log "Found unacceptable language ignore file..."
+    log "Checking for unacceptable language..."
+    unacceptable_language_lines=$(tr '\n' '\0' < .unacceptablelanguageignore | xargs -0 -I% printf '":(exclude)%" '| xargs git grep -i -I -w -H -n --column -E "${UNACCEPTABLE_WORD_LIST// /|}" -- ':!*.unacceptablelanguageignore' | grep -v "ignore-unacceptable-language") || true | /usr/bin/paste -s -d " " -
+else
+    log "Checking for unacceptable language..."
+    unacceptable_language_lines=$(git grep -i -I -w -H -n --column -E "${UNACCEPTABLE_WORD_LIST// /|}" | grep -v "ignore-unacceptable-language") || true | /usr/bin/paste -s -d " " -
+fi
+
+if [ -n "${unacceptable_language_lines}" ]; then
+    fatal " ❌ Found unacceptable language:
+${unacceptable_language_lines}
+"
+fi
+
+
+log "✅ Found no unacceptable language."
diff --git a/.github/workflows/soundness.yml b/.github/workflows/soundness.yml
index 4c543663..c1b7b59a 100644
--- a/.github/workflows/soundness.yml
+++ b/.github/workflows/soundness.yml
@@ -118,7 +118,7 @@ jobs:
     timeout-minutes: 40
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           # This is set to true since swift package diagnose-api-breaking-changes is
           # cloning the repo again and without it being set to true this job won't work for
@@ -158,17 +158,31 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Pre-build
         if: ${{ inputs.linux_pre_build_command }}
         run: ${{ inputs.linux_pre_build_command }}
       - name: Run documentation check
         env:
           ADDITIONAL_DOCC_ARGUMENTS: ${{ inputs.docs_check_additional_arguments }}
-        uses: ./.github/actions/docs-check
+        run: ${{ steps.script_path.outputs.root }}/.github/workflows/scripts/check-docs.sh
 
   docs-check-macos:
     name: Documentation check (macOS)
@@ -177,10 +191,24 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Select Xcode
         run: echo "DEVELOPER_DIR=/Applications/Xcode_${{ inputs.docs_check_macos_xcode_version }}.app" >> $GITHUB_ENV
       - name: Swift version
@@ -190,7 +218,7 @@ jobs:
       - name: Run documentation check
         env:
           ADDITIONAL_DOCC_ARGUMENTS: ${{ inputs.docs_check_macos_additional_arguments }}
-        uses: ./.github/actions/docs-check
+        run: ${{ steps.script_path.outputs.root }}/.github/workflows/scripts/check-docs.sh
 
   unacceptable-language-check:
     name: Unacceptable language check
@@ -199,14 +227,28 @@ jobs:
     timeout-minutes: 1
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Run unacceptable language check
         env:
           UNACCEPTABLE_WORD_LIST: ${{ inputs.unacceptable_language_check_word_list}}
-        uses: ./.github/actions/check-unacceptable-language
+        run: ${{ steps.script_path.outputs.root }}/.github/workflows/scripts/check-unacceptable-language.sh
 
   license-header-check:
     name: License headers check
@@ -215,14 +257,28 @@ jobs:
     timeout-minutes: 1
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Run license header check
         env:
           PROJECT_NAME: ${{ inputs.license_header_check_project_name }}
-        uses: ./.github/actions/license-header-check
+        run: ${{ steps.script_path.outputs.root }}/.github/workflows/scripts/check-license-header.sh
 
   broken-symlink-check:
     name: Broken symlinks check
@@ -231,12 +287,26 @@ jobs:
     timeout-minutes: 1
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Run broken symlinks check
-        uses: ./.github/actions/broken-symlinks-check
+        run: ${{ steps.script_path.outputs.root }}/.github/workflows/scripts/check-broken-symlinks.sh
 
   format-check:
     name: Format check
@@ -247,15 +317,29 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Mark the workspace as safe
         # https://github.com/actions/checkout/issues/766
         run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
       - name: Run format check
-        uses: ./.github/actions/format-check
+        run: ${{ steps.script_path.outputs.root }}/.github/workflows/scripts/check-swift-format.sh
 
   shell-check:
     name: Shell check
@@ -268,7 +352,7 @@ jobs:
       - name: Install git
         run: which git || (apt -q update && apt -yq install git)
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
@@ -287,12 +371,33 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Run yamllint
-        uses: ./.github/actions/yamllint-check
+        run: |
+          which yamllint || (apt -q update && apt install -yq yamllint)
+          cd ${GITHUB_WORKSPACE}
+          if [ ! -f ".yamllint.yml" ]; then
+            echo "Downloading default yamllint config file"
+            cat ${{ steps.script_path.outputs.root }}/.github/workflows/configs/yamllint.yml > .yamllint.yml
+          fi
+          yamllint --strict --config-file .yamllint.yml .
 
   python-lint-check:
     name: Python lint check
@@ -301,9 +406,30 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
           submodules: true
+      - name: Checkout swiftlang/github-workflows repository
+        if: ${{ github.repository != 'swiftlang/github-workflows' }}
+        uses: actions/checkout@v4
+        with:
+          repository: swiftlang/github-workflows
+          path: github-workflows
+      - name: Determine script-root path
+        id: script_path
+        run: |
+          if [ "${{ github.repository }}" = "swiftlang/github-workflows" ]; then
+            echo "root=$GITHUB_WORKSPACE" >> $GITHUB_OUTPUT
+          else
+            echo "root=$GITHUB_WORKSPACE/github-workflows" >> $GITHUB_OUTPUT
+          fi
       - name: Run flake8
-        uses: ./.github/actions/python-lint-check
+        run: |
+          pip3 install flake8 flake8-import-order
+          cd ${GITHUB_WORKSPACE}
+          if [ ! -f ".flake8" ]; then
+            echo "Downloading default flake8 config file"
+            cat ${{ steps.script_path.outputs.root }}/.github/workflows/configs/.flake8 > .flake8
+          fi
+          flake8
diff --git a/.licenseignore b/.licenseignore
index 5e84d245..ee4247a1 100644
--- a/.licenseignore
+++ b/.licenseignore
@@ -1,5 +1,4 @@
-.github/actions/python-lint-check/.flake8
-.github/workflows/configs/.flake
+.github/workflows/configs/.flake8
 **/*.yml
 CODEOWNERS
 LICENSE.txt