diff --git a/.ddev/commands/web/code-check b/.ddev/commands/web/code-check
new file mode 100755
index 0000000..d0ce547
--- /dev/null
+++ b/.ddev/commands/web/code-check
@@ -0,0 +1,541 @@
+#!/bin/bash
+
+## Description: This script performs code quality checks.
+## Usage: code-check [flags]
+## Example: "ddev code-check" or "ddev code-check --cached"
+
+# This script performs code quality checks.
+#
+# @internal
+#   This script is not covered by Drupal core's backwards compatibility promise.
+#   It exists only for core development purposes.
+#
+# The script makes the following checks:
+# - Spell checking.
+# - File modes.
+# - No changes to core/node_modules directory.
+# - PHPCS checks PHP and YAML files.
+# - PHPStan checks PHP files.
+# - ESLint checks JavaScript and YAML files.
+# - Stylelint checks CSS files.
+# - Checks .pcss.css and .css files are equivalent.
+
+# cSpell:disable
+
+TOP_LEVEL="/var/www/html/repos/drupal"
+cd $TOP_LEVEL/core
+
+printf "\033[0;33mIf you have just started DDEV wait for couple of minutes \n"
+printf "before using {ddev code-check} command, mutagen file sync of \n"
+printf "node_modules takes time.\n\033[0m"
+
+corepack enable
+
+echo "NPM Version :"
+npm --version
+
+echo "Yarn Version :"
+yarn --version
+
+# Installs dependencies if not already run.
+if [ ! -d /var/www/html/repos/drupal/core/node_modules/.bin ]; then
+
+  corepack enable
+
+  yarn --cwd /var/www/html/repos/drupal/core install
+
+fi
+
+cd $TOP_LEVEL
+
+# Searches an array.
+contains_element() {
+  local e
+  for e in ${@:2}; do [[ "$e" == "$1" ]] && return 0; done
+  return 1
+}
+
+CACHED=0
+DRUPALCI=0
+BRANCH=""
+while test $# -gt 0; do
+  case "$1" in
+    -h|--help)
+      echo "Drupal code quality checks"
+      echo " "
+      echo "options:"
+      echo "-h, --help                show brief help"
+      echo "--branch BRANCH           creates list of files to check by comparing against a branch"
+      echo "--cached                  checks staged files"
+      echo "--drupalci                a special mode for DrupalCI"
+      echo " "
+      echo "Example usage: sh ./core/scripts/dev/commit-code-check.sh --branch 9.2.x"
+      exit 0
+      ;;
+    --branch)
+      BRANCH="$2"
+      if [[ "$BRANCH" == "" ]]; then
+        printf "The --branch option requires a value. For example: --branch 9.2.x\n"
+        exit;
+      fi
+      shift 2
+      ;;
+    --cached)
+      CACHED=1
+      shift
+      ;;
+    --drupalci)
+      DRUPALCI=1
+      shift
+      ;;
+    *)
+      break
+      ;;
+  esac
+done
+
+# Set up variables to make colored output simple. Color output is disabled on
+# DrupalCI because it is breaks reporting.
+# @todo https://www.drupal.org/project/drupalci_testbot/issues/3181869
+if [[ "$DRUPALCI" == "1" ]]; then
+  red=""
+  green=""
+  reset=""
+  DRUPAL_VERSION=$(php -r "include 'vendor/autoload.php'; print preg_replace('#\.[0-9]+-dev#', '.x', \Drupal::VERSION);")
+  GIT="sudo -u www-data git"
+else
+  red=$(tput setaf 1 && tput bold)
+  green=$(tput setaf 2)
+  reset=$(tput sgr0)
+  GIT="git"
+fi
+
+# Gets list of files to check.
+if [[ "$BRANCH" != "" ]]; then
+  FILES=$($GIT diff --name-only $BRANCH HEAD);
+elif [[ "$CACHED" == "0" ]]; then
+  # For DrupalCI patch testing or when running without --cached or --branch,
+  # list of all changes in the working directory.
+  FILES=$($GIT ls-files --other --modified --exclude-standard --exclude=vendor --exclude=node_modules --exclude=sites --exclude=*.patch --exclude=*.diff --exclude=.DS_Store)
+else
+  # Check staged files only.
+  if $GIT rev-parse --verify HEAD >/dev/null 2>&1
+  then
+    AGAINST=HEAD
+  else
+    # Initial commit: diff against an empty tree object
+    AGAINST=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+  fi
+  FILES=$($GIT diff --cached --name-only $AGAINST);
+fi
+
+if [[ "$FILES" == "" ]] && [[ "$DRUPALCI" == "1" ]]; then
+  # If the FILES is empty we might be testing a merge request on DrupalCI. We
+  # need to diff against the Drupal branch or tag related to the Drupal version.
+  printf "Creating list of files to check by comparing branch to %s\n" "$DRUPAL_VERSION"
+  # On DrupalCI there's a merge commit so we can compare to HEAD~1.
+  FILES=$($GIT diff --name-only HEAD~1 HEAD);
+fi
+
+TOP_LEVEL=$($GIT rev-parse --show-toplevel)
+
+# This variable will be set to one when the file core/phpcs.xml.dist is changed.
+PHPCS_XML_DIST_FILE_CHANGED=0
+
+# This variable will be set to one when the files core/.phpstan-baseline.php or
+# core/phpstan.neon.dist are changed.
+PHPSTAN_DIST_FILE_CHANGED=0
+
+# This variable will be set to one when one of the eslint config file is
+# changed:
+#  - core/.eslintrc.passing.json
+#  - core/.eslintrc.json
+#  - core/.eslintrc.jquery.json
+ESLINT_CONFIG_PASSING_FILE_CHANGED=0
+
+# This variable will be set to one when the stylelint config file is changed.
+# changed:
+#  - core/.stylelintignore
+#  - core/.stylelintrc.json
+STYLELINT_CONFIG_FILE_CHANGED=0
+
+# This variable will be set to one when JavaScript packages files are changed.
+# changed:
+#  - core/package.json
+#  - core/yarn.lock
+JAVASCRIPT_PACKAGES_CHANGED=0
+
+# This variable will be set when a Drupal-specific CKEditor 5 plugin has changed
+# it is used to make sure the compiled JS is valid.
+CKEDITOR5_PLUGINS_CHANGED=0
+
+# This variable will be set to when the dictionary has changed.
+CSPELL_DICTIONARY_FILE_CHANGED=0
+
+# Build up a list of absolute file names.
+ABS_FILES=
+for FILE in $FILES; do
+  if [ -f "$TOP_LEVEL/$FILE" ]; then
+    ABS_FILES="$ABS_FILES $TOP_LEVEL/$FILE"
+  fi
+
+  if [[ $FILE == "core/phpcs.xml.dist" ]]; then
+    PHPCS_XML_DIST_FILE_CHANGED=1;
+  fi;
+
+  if [[ $FILE == "core/.phpstan-baseline.php" || $FILE == "core/phpstan.neon.dist" ]]; then
+    PHPSTAN_DIST_FILE_CHANGED=1;
+  fi;
+
+  if [[ $FILE == "core/.eslintrc.json" || $FILE == "core/.eslintrc.passing.json" || $FILE == "core/.eslintrc.jquery.json" ]]; then
+    ESLINT_CONFIG_PASSING_FILE_CHANGED=1;
+  fi;
+
+  if [[ $FILE == "core/.stylelintignore" || $FILE == "core/.stylelintrc.json" ]]; then
+    STYLELINT_CONFIG_FILE_CHANGED=1;
+  fi;
+
+  # If JavaScript packages change, then rerun all JavaScript style checks.
+  if [[ $FILE == "core/package.json" || $FILE == "core/yarn.lock" ]]; then
+    ESLINT_CONFIG_PASSING_FILE_CHANGED=1;
+    STYLELINT_CONFIG_FILE_CHANGED=1;
+    JAVASCRIPT_PACKAGES_CHANGED=1;
+  fi;
+
+  if [[ -f "$TOP_LEVEL/$FILE" ]] && [[ $FILE =~ \.js$ ]] && [[ $FILE =~ ^core/modules/ckeditor5/js/build || $FILE =~ ^core/modules/ckeditor5/js/ckeditor5_plugins ]]; then
+    CKEDITOR5_PLUGINS_CHANGED=1;
+  fi;
+
+  if [[ $FILE == "core/misc/cspell/dictionary.txt" || $FILE == "core/misc/cspell/drupal-dictionary.txt" ]]; then
+    CSPELL_DICTIONARY_FILE_CHANGED=1;
+  fi
+done
+
+# Exit early if there are no files.
+if [[ "$ABS_FILES" == "" ]]; then
+  printf "There are no files to check. If you have staged a commit use the --cached option.\n"
+  exit;
+fi;
+
+# This script assumes that composer install and yarn install have already been
+# run and all dependencies are updated.
+FINAL_STATUS=0
+
+DEPENDENCIES_NEED_INSTALLING=0
+# Ensure PHP development dependencies are installed.
+# @todo https://github.com/composer/composer/issues/4497 Improve this to
+#  determine if dependencies in the lock file match the installed versions.
+#  Using composer install --dry-run is not valid because it would depend on
+#  user-facing strings in Composer.
+if ! [[ -f 'vendor/bin/phpcs' ]]; then
+  printf "Drupal's PHP development dependencies are not installed. Run 'composer install' from the root directory.\n"
+  DEPENDENCIES_NEED_INSTALLING=1;
+fi
+
+cd "$TOP_LEVEL/core"
+
+# Ensure JavaScript development dependencies are installed.
+yarn --version
+yarn >/dev/null
+
+# Check all files for spelling in one go for better performance.
+if [[ $CSPELL_DICTIONARY_FILE_CHANGED == "1" ]] ; then
+  printf "\nRunning spellcheck on *all* files.\n"
+  yarn run spellcheck:core --no-must-find-files --no-progress
+else
+  # Check all files for spelling in one go for better performance. We pipe the
+  # list files in so we obey the globs set on the spellcheck:core command in
+  # core/package.json.
+  echo "${ABS_FILES}" | tr ' ' '\n' | yarn run spellcheck:core --no-must-find-files --file-list stdin
+fi
+
+if [ "$?" -ne "0" ]; then
+  # If there are failures set the status to a number other than 0.
+  FINAL_STATUS=1
+  printf "\nCSpell: ${red}failed${reset}\n"
+else
+  printf "\nCSpell: ${green}passed${reset}\n"
+fi
+cd "$TOP_LEVEL"
+
+# Add a separator line to make the output easier to read.
+printf "\n"
+printf -- '-%.0s' {1..100}
+printf "\n"
+
+# Run PHPStan on all files on DrupalCI or when phpstan files are changed.
+# APCu is disabled to ensure that the composer classmap is not corrupted.
+if [[ $PHPSTAN_DIST_FILE_CHANGED == "1" ]] || [[ "$DRUPALCI" == "1" ]]; then
+  printf "\nRunning PHPStan on *all* files.\n"
+  php -d apc.enabled=0 -d apc.enable_cli=0 vendor/bin/phpstan analyze --no-progress --configuration="$TOP_LEVEL/core/phpstan.neon.dist"
+else
+  # Only run PHPStan on changed files locally.
+  printf "\nRunning PHPStan on changed files.\n"
+  php -d apc.enabled=0 -d apc.enable_cli=0 vendor/bin/phpstan analyze --memory-limit=2G --no-progress --configuration="$TOP_LEVEL/core/phpstan-partial.neon" $ABS_FILES
+fi
+
+if [ "$?" -ne "0" ]; then
+  # If there are failures set the status to a number other than 0.
+  FINAL_STATUS=1
+  printf "\nPHPStan: ${red}failed${reset}\n"
+else
+  printf "\nPHPStan: ${green}passed${reset}\n"
+fi
+
+# Add a separator line to make the output easier to read.
+printf "\n"
+printf -- '-%.0s' {1..100}
+printf "\n"
+
+# Run PHPCS on all files on DrupalCI or when phpcs files are changed.
+if [[ $PHPCS_XML_DIST_FILE_CHANGED == "1" ]] || [[ "$DRUPALCI" == "1" ]]; then
+  # Test all files with phpcs rules.
+  vendor/bin/phpcs -ps --parallel="$( (nproc || sysctl -n hw.logicalcpu || echo 4) 2>/dev/null)" --standard="$TOP_LEVEL/core/phpcs.xml.dist"
+  PHPCS=$?
+  if [ "$PHPCS" -ne "0" ]; then
+    # If there are failures set the status to a number other than 0.
+    FINAL_STATUS=1
+    printf "\nPHPCS: ${red}failed${reset}\n"
+  else
+    printf "\nPHPCS: ${green}passed${reset}\n"
+  fi
+  # Add a separator line to make the output easier to read.
+  printf "\n"
+  printf -- '-%.0s' {1..100}
+  printf "\n"
+fi
+
+# When the eslint config has been changed, then eslint must check all files.
+if [[ $ESLINT_CONFIG_PASSING_FILE_CHANGED == "1" ]]; then
+  cd "$TOP_LEVEL/core"
+  yarn run lint:core-js-passing "$TOP_LEVEL/core"
+  CORRECTJS=$?
+  if [ "$CORRECTJS" -ne "0" ]; then
+    # If there are failures set the status to a number other than 0.
+    FINAL_STATUS=1
+    printf "\neslint: ${red}failed${reset}\n"
+  else
+    printf "\neslint: ${green}passed${reset}\n"
+  fi
+  cd $TOP_LEVEL
+  # Add a separator line to make the output easier to read.
+  printf "\n"
+  printf -- '-%.0s' {1..100}
+  printf "\n"
+fi
+
+# When the stylelint config has been changed, then stylelint must check all files.
+if [[ $STYLELINT_CONFIG_FILE_CHANGED == "1" ]]; then
+  cd "$TOP_LEVEL/core"
+  yarn run lint:css
+  if [ "$?" -ne "0" ]; then
+    # If there are failures set the status to a number other than 0.
+    FINAL_STATUS=1
+    printf "\nstylelint: ${red}failed${reset}\n"
+  else
+    printf "\nstylelint: ${green}passed${reset}\n"
+  fi
+  cd $TOP_LEVEL
+  # Add a separator line to make the output easier to read.
+  printf "\n"
+  printf -- '-%.0s' {1..100}
+  printf "\n"
+fi
+
+# When a Drupal-specific CKEditor 5 plugin changed ensure that it is compiled
+# properly. Only check on DrupalCI, since we're concerned about the build being
+# run with the expected package versions and making sure the result of the build
+# is in sync and conform to expectations.
+if [[ "$DRUPALCI" == "1" ]] && [[ $CKEDITOR5_PLUGINS_CHANGED == "1" ]]; then
+  cd "$TOP_LEVEL/core"
+  yarn run check:ckeditor5
+  if [ "$?" -ne "0" ]; then
+    # If there are failures set the status to a number other than 0.
+    FINAL_STATUS=1
+    printf "\nDrupal-specific CKEditor 5 plugins: ${red}failed${reset}\n"
+  else
+    printf "\nDrupal-specific CKEditor 5 plugins: ${green}passed${reset}\n"
+  fi
+  cd $TOP_LEVEL
+  # Add a separator line to make the output easier to read.
+  printf "\n"
+  printf -- '-%.0s' {1..100}
+  printf "\n"
+fi
+
+# When JavaScript packages change, then rerun all JavaScript style checks.
+if [[ "$JAVASCRIPT_PACKAGES_CHANGED" == "1" ]]; then
+  cd "$TOP_LEVEL/core"
+  yarn run build:css --check
+  CORRECTCSS=$?
+  if [ "$CORRECTCSS" -ne "0" ]; then
+    FINAL_STATUS=1
+    printf "\n${red}ERROR: The compiled CSS from the PCSS files"
+    printf "\n       does not match the current CSS files. Some added"
+    printf "\n       or updated JavaScript package made changes."
+    printf "\n       Recompile the CSS with: yarn run build:css${reset}\n\n"
+  fi
+  cd $TOP_LEVEL
+  # Add a separator line to make the output easier to read.
+  printf "\n"
+  printf -- '-%.0s' {1..100}
+  printf "\n"
+fi
+
+for FILE in $FILES; do
+  STATUS=0;
+  # Print a line to separate spellcheck output from per file output.
+  printf "Checking %s\n" "$FILE"
+  printf "\n"
+
+  # Ensure the file still exists (i.e. is not being deleted).
+  if [ -a $FILE ]; then
+    if [ ${FILE: -3} != ".sh" ]; then
+      if [ -x $FILE ]; then
+        printf "${red}check failed:${reset} file $FILE should not be executable\n"
+        STATUS=1
+      fi
+    fi
+  fi
+
+  # Don't commit changes to vendor.
+  if [[ "$FILE" =~ ^vendor/ ]]; then
+    printf "${red}check failed:${reset} file in vendor directory being committed ($FILE)\n"
+    STATUS=1
+  fi
+
+  # Don't commit changes to core/node_modules.
+  if [[ "$FILE" =~ ^core/node_modules/ ]]; then
+    printf "${red}check failed:${reset} file in core/node_modules directory being committed ($FILE)\n"
+    STATUS=1
+  fi
+
+  ############################################################################
+  ### PHP AND YAML FILES
+  ############################################################################
+  if [[ -f "$TOP_LEVEL/$FILE" ]] && [[ $FILE =~ \.(inc|install|module|php|profile|test|theme|yml)$ ]] && [[ $PHPCS_XML_DIST_FILE_CHANGED == "0" ]] && [[ "$DRUPALCI" == "0" ]]; then
+    # Test files with phpcs rules.
+    vendor/bin/phpcs "$TOP_LEVEL/$FILE" --standard="$TOP_LEVEL/core/phpcs.xml.dist"
+    PHPCS=$?
+    if [ "$PHPCS" -ne "0" ]; then
+      # If there are failures set the status to a number other than 0.
+      STATUS=1
+    else
+      printf "PHPCS: $FILE ${green}passed${reset}\n"
+    fi
+  fi
+
+  ############################################################################
+  ### YAML FILES
+  ############################################################################
+  if [[ -f "$TOP_LEVEL/$FILE" ]] && [[ $FILE =~ \.yml$ ]]; then
+    # Test files with ESLint.
+    cd "$TOP_LEVEL/core"
+    node ./node_modules/eslint/bin/eslint.js --quiet --resolve-plugins-relative-to . "$TOP_LEVEL/$FILE"
+    YAMLLINT=$?
+    if [ "$YAMLLINT" -ne "0" ]; then
+      # If there are failures set the status to a number other than 0.
+      STATUS=1
+    else
+      printf "ESLint: $FILE ${green}passed${reset}\n"
+    fi
+    cd $TOP_LEVEL
+  fi
+
+  ############################################################################
+  ### JAVASCRIPT FILES
+  ############################################################################
+  if [[ -f "$TOP_LEVEL/$FILE" ]] && [[ $FILE =~ \.js$ ]]; then
+    cd "$TOP_LEVEL/core"
+    # Check the coding standards.
+    node ./node_modules/eslint/bin/eslint.js --quiet --config=.eslintrc.passing.json "$TOP_LEVEL/$FILE"
+    JSLINT=$?
+    if [ "$JSLINT" -ne "0" ]; then
+      # No need to write any output the node command will do this for us.
+      STATUS=1
+    else
+      printf "ESLint: $FILE ${green}passed${reset}\n"
+    fi
+    cd $TOP_LEVEL
+  fi
+
+  ############################################################################
+  ### CSS FILES
+  ############################################################################
+  if [[ -f "$TOP_LEVEL/$FILE" ]] && [[ $FILE =~ \.css$ ]]; then
+    # Work out the root name of the CSS so we can ensure that the PostCSS
+    # version has been compiled correctly.
+    if [[ $FILE =~ \.pcss\.css$ ]]; then
+      BASENAME=${FILE%.pcss.css}
+      COMPILE_CHECK=1
+    else
+      BASENAME=${FILE%.css}
+      # We only need to compile check if the .pcss.css file is not also
+      # changing. This is because the compile check will occur for the
+      # .pcss.css file. This might occur if the compiled stylesheets have
+      # changed.
+      contains_element "$BASENAME.pcss.css" "${FILES[@]}"
+      HASPOSTCSS=$?
+      if [ "$HASPOSTCSS" -ne "0" ]; then
+        COMPILE_CHECK=1
+      else
+        COMPILE_CHECK=0
+      fi
+    fi
+    # PostCSS
+    if [[ "$COMPILE_CHECK" == "1" ]] && [[ -f "$TOP_LEVEL/$BASENAME.pcss.css" ]]; then
+      cd "$TOP_LEVEL/core"
+      yarn run build:css --check --file "$TOP_LEVEL/$BASENAME.pcss.css"
+      CORRECTCSS=$?
+      if [ "$CORRECTCSS" -ne "0" ]; then
+        # If the CSS does not match the PCSS, set the status to a number other
+        # than 0.
+        STATUS=1
+        printf "\n${red}ERROR: The compiled CSS from"
+        printf "\n       ${BASENAME}.pcss.css"
+        printf "\n       does not match its CSS file. Recompile the CSS with:"
+        printf "\n       yarn run build:css${reset}\n\n"
+      fi
+      cd $TOP_LEVEL
+    fi
+  fi
+  if [[ -f "$TOP_LEVEL/$FILE" ]] && [[ $FILE =~ \.css$ ]] && [[ -f "core/node_modules/.bin/stylelint" ]]; then
+    BASENAME=${FILE%.css}
+    # We only need to use stylelint on the .pcss.css file. So if this CSS file
+    # has a corresponding .pcss don't do stylelint.
+    if [[ $FILE =~ \.pcss\.css$ ]] || [[ ! -f "$TOP_LEVEL/$BASENAME.pcss.css" ]]; then
+      cd "$TOP_LEVEL/core"
+      node_modules/.bin/stylelint --allow-empty-input "$TOP_LEVEL/$FILE"
+      if [ "$?" -ne "0" ]; then
+        STATUS=1
+      else
+        printf "STYLELINT: $FILE ${green}passed${reset}\n"
+      fi
+      cd $TOP_LEVEL
+    fi
+  fi
+
+  if [[ "$STATUS" == "1" ]]; then
+    FINAL_STATUS=1
+    # There is no need to print a failure message. The fail will be described
+    # already.
+  else
+    printf "%s ${green}passed${reset}\n" "$FILE"
+  fi
+
+  # Print a line to separate each file's checks.
+  printf "\n"
+  printf -- '-%.0s' {1..100}
+  printf "\n"
+done
+
+if [[ "$FINAL_STATUS" == "1" ]] && [[ "$DRUPALCI" == "1" ]]; then
+  printf "${red}Drupal code quality checks failed.${reset}\n"
+  printf "To reproduce this output locally:\n"
+  printf "* Apply the change as a patch\n"
+  printf "* Run this command locally: sh ./core/scripts/dev/commit-code-check.sh\n"
+  printf "OR:\n"
+  printf "* From the merge request branch\n"
+  printf "* Run this command locally: sh ./core/scripts/dev/commit-code-check.sh --branch %s\n" "$DRUPAL_VERSION"
+fi
+exit $FINAL_STATUS
diff --git a/.ddev/commands/web/cspell-check b/.ddev/commands/web/cspell-check
new file mode 100755
index 0000000..b858f56
--- /dev/null
+++ b/.ddev/commands/web/cspell-check
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+## Description: This script performs cspell checks.
+## Usage: cspell-check [flags]
+## Example: "ddev cspell-check"
+
+# Installs dependencies if not already run.
+if [ ! -d /var/www/html/repos/drupal/core/node_modules/.bin ]; then
+
+  corepack enable
+
+  yarn --cwd /var/www/html/repos/drupal/core install
+fi
+
+TOP_LEVEL="/var/www/html/repos/drupal/core"
+cd $TOP_LEVEL
+
+yarn run spellcheck:core --no-must-find-files --cache --cache-strategy content
diff --git a/.ddev/commands/web/install b/.ddev/commands/web/install
new file mode 100755
index 0000000..d42fff5
--- /dev/null
+++ b/.ddev/commands/web/install
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+## Description: Performs a default drupal installation
+## Usage: install
+## Example: "ddev install"
+
+drush site:install standard --account-name=admin --account-pass=admin --site-name="Drupal 11" -y
+# drush en admin_toolbar admin_toolbar_tools devel
diff --git a/.ddev/commands/web/nightwatch b/.ddev/commands/web/nightwatch
new file mode 100755
index 0000000..4b56faf
--- /dev/null
+++ b/.ddev/commands/web/nightwatch
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+## Description: Run Nightwatch
+## Usage: nightwatch [flags] [args]
+## Example: "ddev nightwatch" or "ddev nightwatch --tag core"
+
+# Installs dependencies if not already run.
+if [ ! -d /var/www/html/repos/drupal/core/node_modules ]; then
+  yarn --cwd /var/www/html/repos/drupal/core install
+fi
+
+yarn --cwd /var/www/html/repos/drupal/core test:nightwatch $@
diff --git a/.ddev/commands/web/phpcbf b/.ddev/commands/web/phpcbf
new file mode 100755
index 0000000..32cc3dd
--- /dev/null
+++ b/.ddev/commands/web/phpcbf
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+## Description: Run phpcbf
+## Usage: phpcbf [flags] [args]
+## Example: "ddev phpcbf web/modules/contrib"
+
+TOP_LEVEL="/var/www/html/repos/drupal"
+cd $TOP_LEVEL
+
+/var/www/html/vendor/bin/phpcbf --standard=Drupal,DrupalPractice $@ || \
+echo "Return code ignored"
diff --git a/.ddev/commands/web/phpcs b/.ddev/commands/web/phpcs
new file mode 100755
index 0000000..aac975c
--- /dev/null
+++ b/.ddev/commands/web/phpcs
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+## Description: Run phpcs
+## Usage: phpcs [flags] [args]
+## Example: "ddev phpcs web/modules/contrib"
+
+TOP_LEVEL="/var/www/html/repos/drupal"
+cd $TOP_LEVEL
+
+/var/www/html/vendor/bin/phpcs --standard=Drupal,DrupalPractice $@ || \
+echo "Return code ignored"
diff --git a/.ddev/commands/web/phpstan b/.ddev/commands/web/phpstan
new file mode 100755
index 0000000..314e3a7
--- /dev/null
+++ b/.ddev/commands/web/phpstan
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+## Description: Run phpstan
+## Usage: phpstan [flags] [args]
+## Example: "ddev phpstan core/modules/migrate_drupal_ui"
+
+TOP_LEVEL="/var/www/html/repos/drupal"
+cd $TOP_LEVEL
+
+/var/www/html/vendor/bin/phpstan analyze  --configuration="$TOP_LEVEL/core/phpstan.neon.dist" --xdebug --no-ansi --memory-limit=2G $@ || \
+echo "Return code ignored"
diff --git a/.ddev/commands/web/phpunit b/.ddev/commands/web/phpunit
new file mode 100755
index 0000000..cf1b575
--- /dev/null
+++ b/.ddev/commands/web/phpunit
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+## Description: Run PHPUnit
+## Usage: phpunit [flags] [args]
+## Example: "ddev phpunit --group big_pipe" or "ddev phpunit web/core/modules/action"
+
+TOP_LEVEL="/var/www/html/repos/drupal"
+cd $TOP_LEVEL
+
+/var/www/html/vendor/bin/phpunit -c /var/www/html/web/core/phpunit.xml.dist $@
diff --git a/.ddev/commands/web/tests-cleanup b/.ddev/commands/web/tests-cleanup
new file mode 100755
index 0000000..690a769
--- /dev/null
+++ b/.ddev/commands/web/tests-cleanup
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+## Description: Clean up test results
+## Usage: tests-cleanup
+## Example: "ddev tests-cleanup"
+
+TOP_LEVEL="/var/www/html"
+cd $TOP_LEVEL
+
+if [ ! -d "web/sites/simpletest/browser_output" ]
+then
+  echo "The expected folder web/sites/simpletest/browser_output does not exist."
+  exit
+fi
+
+rm web/sites/simpletest/browser_output/*.counter
+rm web/sites/simpletest/browser_output/*.html
+
+echo "Test files removed."
diff --git a/.ddev/config.yaml b/.ddev/config.yaml
new file mode 100644
index 0000000..d007d47
--- /dev/null
+++ b/.ddev/config.yaml
@@ -0,0 +1,24 @@
+type: drupal
+docroot: web
+php_version: "8.3"
+webserver_type: nginx-fpm
+xdebug_enabled: false
+additional_hostnames:
+ - drupal-core-testing
+additional_fqdns: []
+database:
+    type: mariadb
+    version: "10.11"
+hooks:
+    post-start:
+        - exec: mysql -uroot -proot -e "CREATE DATABASE IF NOT EXISTS phpunit; GRANT ALL ON phpunit.* to 'db'@'%';"
+          service: db
+project_tld: local
+use_dns_when_possible: true
+composer_version: "2"
+web_environment:
+    - BROWSERTEST_OUTPUT_DIRECTORY=/var/www/html/web/sites/simpletest/browser_output
+    - BROWSERTEST_OUTPUT_BASE_URL=https://drupal-core-testing.local
+    - SIMPLETEST_BASE_URL=${DDEV_PRIMARY_URL}
+    - SIMPLETEST_DB=mysql://root:root@db/phpunit
+corepack_enable: true
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..62f54bd
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,29 @@
+repos/.DS_Store
+repos/drupal/
+vendor/
+.ddev/
+.DS_Store
+databases
+composer.lock
+web/core
+web/.csslintrc
+web/.eslintignore
+web/.eslintrc.json
+web/.ht.router.php
+web/.htaccess
+web/INSTALL.txt
+web/README.md
+web/autoload.php
+web/example.gitignore
+web/index.php
+web/modules/README.txt
+web/profiles/README.txt
+web/robots.txt
+web/sites/README.txt
+web/sites/development.services.yml
+web/sites/example.settings.local.php
+web/sites/example.sites.php
+web/themes/README.txt
+web/update.php
+web/sites/
+web/modules/contrib/
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..43a2f71
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Listen for Xdebug",
+      "type": "php",
+      "request": "launch",
+      "hostname": "0.0.0.0",
+      "port": 9003,
+      "pathMappings": {
+        "/var/www/html": "${workspaceRoot}",
+      }
+    }
+  ]
+}
diff --git a/README.md b/README.md
index 69d22fa..d7b7abb 100644
--- a/README.md
+++ b/README.md
@@ -27,8 +27,8 @@ https://www.drupal.org/project/drupal/issues/1792310.
 
 To install a Drupal project for working on Drupal core:
 
-```
-$ composer create-project joachim-n/drupal-core-development-project
+```bash
+composer create-project joachim-n/drupal-core-development-project
 ```
 
 Composer will clone Drupal core into a 'repos/drupal' directory within the
@@ -47,12 +47,12 @@ either with `drush si` or with the web UI.
 First, make sure your DDEV version is at least 1.23.0. Next, create a new folder
 for your project and `cd` into it. Then:
 
-```
-$ ddev config --project-type=drupal --php-version=8.3
-$ ddev start
-$ ddev composer create joachim-n/drupal-core-development-project
-$ ddev config --update
-$ ddev restart
+``` bash
+ddev config --project-type=drupal --php-version=8.3
+ddev start
+ddev composer create joachim-n/drupal-core-development-project
+ddev config --update
+ddev restart
 ```
 
 ### Installation on DDEV with the justafish/ddev-drupal-core-dev DDEV addon
@@ -155,8 +155,8 @@ The following are required to run tests.
 The simplest way to run tests with this setup is to put the phpunit.xml file in
 the project root and then run tests from there:
 
-```
-$ vendor/bin/phpunit web/core/PATH-TO-TEST-FILE/TestFile.php
+``` bash
+vendor/bin/phpunit web/core/PATH-TO-TEST-FILE/TestFile.php
 ```
 
 ##### On DDEV
@@ -164,8 +164,8 @@ $ vendor/bin/phpunit web/core/PATH-TO-TEST-FILE/TestFile.php
 1. Copy the `phpunit-ddev.xml` file that this template provides and rename it to
    `phpunit.xml`:
 
-```
-$ cp phpunit-ddev.xml phpunit.xml
+``` bash
+cp phpunit-ddev.xml phpunit.xml
 ```
 
 2. Change the BROWSERTEST_OUTPUT_BASE_URL value to the host URL of the project.
@@ -175,8 +175,8 @@ $ cp phpunit-ddev.xml phpunit.xml
 1. Copy Drupal core's sample `phpunit.xml.dist`` file to the project root and
 rename it to `phpunit.xml`:
 
-```
-$ cp web/core/phpunit.xml.dist phpunit.xml
+``` bash
+cp web/core/phpunit.xml.dist phpunit.xml
 ```
 
 2. Change the `bootstrap` attribute so the path is correct:
@@ -192,7 +192,7 @@ that it recognises the process being run from the project root.
 
 For example, in VSCode, this is done as follows in the debugger configuration:
 
-```
+``` json
 "pathMappings": {
   // Make this work with the root project.
   "/ABSOLUTE/PATH/TO/PROJECT/repos/drupal": "${workspaceRoot}"
@@ -227,28 +227,28 @@ Composer script.
 
 Clone the repository for this template into, say, 'drupal-dev'.
 
-```
-$ cd drupal-dev
+``` bash
+cd drupal-dev
 
 # Create a folder in which to store git clones, which Composer will symlink in.
-$ mkdir repos
-$ cd repos
+mkdir repos
+cd repos
 
 # Clone Drupal core, to whatever branch you like.
-$ git clone --branch 9.2.x https://git.drupalcode.org/project/drupal.git
+git clone --branch 11.x https://git.drupalcode.org/project/drupal.git
 
 # Go back to the project root.
-$ cd ..
+cd ..
 
 # Install packages with Composer.
-$ composer install
+composer install
 ```
 
 The Drupal core git clone will be clean apart from:
 
-```
-	sites/default/settings.php
-	vendor
+``` bash
+ sites/default/settings.php
+ vendor
 ```
 
 Since it doesn't have a .gitignore at the top level, you can add one to ignore
@@ -261,8 +261,8 @@ clone of the template repository.
 
 In a separate location, do:
 
-```
-$ composer create-project joachim-n/drupal-core-development-project NEW_PROJECT_DIRECTORY --stability=dev --repository='{"url":"/path/to/git/clone/of/project/template/","type":"vcs"}'
+``` bash
+composer create-project joachim-n/drupal-core-development-project NEW_PROJECT_DIRECTORY --stability=dev --repository='{"url":"/path/to/git/clone/of/project/template/","type":"vcs"}'
 ```
 
 ### Workarounds
@@ -282,7 +282,7 @@ otherwise code in core that expects to find a Composer autoloader fails.
 This is done by a Composer script after initial installation. The manual command
 is:
 
-```
+``` bash
 ln -s ../../vendor ./repos/drupal/vendor
 ```
 
@@ -296,7 +296,7 @@ can't find the settings.php file.
 This is done by a Composer script after initial installation. The manual
 commands are:
 
-```
+``` bash
 cd web && patch -p1 <../scaffold/scaffold-patch-index-php.patch
 cd web && patch -p1 <../scaffold/scaffold-patch-update-php.patch
 ```
@@ -329,7 +329,7 @@ root and symlink it into the Drupal core git clone.
 This is done by a Composer script after initial installation. The manual command
 is:
 
-```
+``` bash
 mkdir -p web/sites/simpletest
 ln -s ../../../web/sites/simpletest repos/drupal/sites
 ```
@@ -339,3 +339,45 @@ ln -s ../../../web/sites/simpletest repos/drupal/sites
 Drupal's /composer folder is not symlinked and therefore isn't visible to
 Composer. It's needed for some tests, and so is declared as an autoload
 location.
+
+## Core Development Using DDEV
+
+1. Clone this repository by using `git clone --branch=master https://github.com/bhanu951/drupal-core-development-project.git`
+2. cd repos
+3. git clone --branch=11.x https://git.drupalcode.org/project/drupal.git drupal
+4. ddev get drud/ddev-selenium-standalone-chrome (downloads latest chrome driver)
+5. ddev composer install (from project root)
+6. ddev composer require drupal/admin_toolbar drupal/devel
+7. cd repos/drupal ; `git status` to track core changes
+
+### DDEV Commands Usage
+
+1. ddev phpcs core/modules/user/src/RegisterForm.php (from repos/drupal directory)
+2. ddev phpcbf core/modules/user/src/RegisterForm.php (from repos/drupal directory)
+3. ddev phpunit core/modules/user/tests/src/Functional/UserAdminTest.php (from repos/drupal directory)
+4. ddev code-check (ddev equivalent of running `sh core/scripts/dev/commit-code-check.sh`)
+5. ddev cspell-check (Checks for forbidden and new words which are not present in dictonary)
+6. ddev install (Installs new site)
+7. ddev drush [arguments] (from project root)
+
+### TODO
+
+1. Add DDEV Rector Commands
+2. Find workaround for ddev phpstan command failures
+
+### Tips
+
+1. ddev drush si --site-name=drupal-145353
+
+### Known Issues
+
+There is a known issue where PHPSTAN doesnt work when the
+`ComponentTestDoesNotExtendCoreTest` is enabled in `core/phpstan.neon.dist`
+hence it advised to comment the rule for local analysis.
+
+```yaml
+rules:
+# - Drupal\PHPStan\Rules\ComponentTestDoesNotExtendCoreTest
+- PHPStan\Rules\Functions\MissingFunctionReturnTypehintRule
+- PHPStan\Rules\Methods\MissingMethodReturnTypehintRule
+```
diff --git a/composer.json b/composer.json
index 85dc80d..2d5dae6 100644
--- a/composer.json
+++ b/composer.json
@@ -42,11 +42,11 @@
     ],
     "require": {
         "composer/installers": "^1.9 | ^2",
-        "drupal/core-composer-scaffold": "*",
-        "drupal/drupal": "*",
         "drupal/core": "*",
+        "drupal/core-composer-scaffold": "*",
         "drupal/core-dev": "*",
         "drupal/core-recommended": "*",
+        "drupal/drupal": "*",
         "drush/drush": "^13",
         "phpspec/prophecy-phpunit": "*",
         "symfony/var-dumper": "*"
@@ -62,7 +62,8 @@
             "drupal/core-composer-scaffold": true,
             "php-http/discovery": true,
             "phpstan/extension-installer": true,
-            "dealerdirect/phpcodesniffer-composer-installer": true
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "tbachert/spi": true
         }
     },
     "scripts": {
diff --git a/drush/Commands/core_development/DevelopmentProjectCommands.php b/drush/Commands/core_development/DevelopmentProjectCommands.php
index 85ac1cf..00acf0f 100644
--- a/drush/Commands/core_development/DevelopmentProjectCommands.php
+++ b/drush/Commands/core_development/DevelopmentProjectCommands.php
@@ -30,7 +30,7 @@ public function __construct(
 
   public static function createEarly(DrushContainer $drush_container): self {
     $commandHandler = new static(
-        $drush_container->get('loader')
+      $drush_container->get('loader')
     );
 
     return $commandHandler;
diff --git a/repos/.gitkeep b/repos/.gitkeep
new file mode 100644
index 0000000..e69de29