diff --git a/.drevops/installer/src/Bag/AbstractBag.php b/.drevops/installer/src/Bag/AbstractBag.php
index e77064c8e..802227dff 100644
--- a/.drevops/installer/src/Bag/AbstractBag.php
+++ b/.drevops/installer/src/Bag/AbstractBag.php
@@ -3,7 +3,9 @@
 namespace DrevOps\Installer\Bag;
 
 /**
+ * Class AbstractBag.
  *
+ * Bag to store and manipulate items.
  */
 abstract class AbstractBag {
 
diff --git a/.drevops/installer/src/Bag/Answers.php b/.drevops/installer/src/Bag/Answers.php
index c4a0b3bee..afb085abf 100644
--- a/.drevops/installer/src/Bag/Answers.php
+++ b/.drevops/installer/src/Bag/Answers.php
@@ -5,7 +5,9 @@
 use DrevOps\Installer\Trait\SingletonTrait;
 
 /**
+ * Class Answers.
  *
+ * Bag to store answers.
  */
 class Answers extends AbstractBag {
 
diff --git a/.drevops/installer/src/Bag/Config.php b/.drevops/installer/src/Bag/Config.php
index 89b376691..4ff041f2a 100644
--- a/.drevops/installer/src/Bag/Config.php
+++ b/.drevops/installer/src/Bag/Config.php
@@ -8,7 +8,9 @@
 use DrevOps\Installer\Utils\Files;
 
 /**
+ * Class Config.
  *
+ * Bag to store configuration.
  */
 class Config extends AbstractBag {
 
@@ -49,16 +51,7 @@ public function __construct() {
   }
 
   /**
-   * Set installer configuration.
-   *
-   * Installer config is a config of this installer script. For configs of the
-   * project being installed, @param $name.
-   *
-   * @param $value
-   *
-   * @see set_answer()
-   *
-   * @see init_config()
+   * {@inheritdoc}
    */
   public function set(string $name, mixed $value): void {
     if ($this->isReadOnly()) {
@@ -89,19 +82,21 @@ public function fromValues($values = []): AbstractBag {
   /**
    * Shorthand to get the value of whether install should be quiet.
    *
-   * @return mixed|null
+   * @return bool
+   *   Whether install should be quiet.
    */
-  public function isQuiet() {
-    return $this->get('quiet', FALSE);
+  public function isQuiet(): bool {
+    return (bool) $this->get('quiet', FALSE);
   }
 
   /**
    * Shorthand to get the value the destination directory.
    *
-   * @return mixed|null
+   * @return string
+   *   The destination directory.
    */
   public function getDstDir(): string {
-    return $this->get(Env::INSTALLER_DST_DIR, getcwd());
+    return (string) $this->get(Env::INSTALLER_DST_DIR, getcwd());
   }
 
   /**
@@ -111,6 +106,12 @@ public function getWebroot(): string {
     return $this->get(Env::WEBROOT, 'web');
   }
 
+  /**
+   * Collect values from environment.
+   *
+   * @param array $defaults
+   *   Default values.
+   */
   protected function collectFromEnv(array $defaults = []): void {
     $constants = Env::getConstants();
 
diff --git a/.drevops/installer/src/Command/InstallCommand.php b/.drevops/installer/src/Command/InstallCommand.php
index 85ad808e7..4fb31158e 100644
--- a/.drevops/installer/src/Command/InstallCommand.php
+++ b/.drevops/installer/src/Command/InstallCommand.php
@@ -53,21 +53,29 @@ class InstallCommand extends Command {
   protected static $defaultName = 'install';
 
   /**
+   * Config.
+   *
    * @var \DrevOps\Installer\Bag\Config
    */
   protected $config;
 
   /**
+   * Prompt manager.
+   *
    * @var \DrevOps\Installer\Prompt\PromptManager
    */
-  protected $questionManager;
+  protected $promptManager;
 
   /**
+   * Install manager.
+   *
    * @var \DrevOps\Installer\InstallManager
    */
   protected $installManager;
 
   /**
+   * Print manager.
+   *
    * @var \DrevOps\Installer\PrintManager
    */
   protected $printManager;
@@ -86,7 +94,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
     $this->config = Config::getInstance()->fromValues(['cwd' => getcwd()] + $input->getArguments() + $input->getOptions());
 
     $io = $this->initIo($input, $output);
-    $this->questionManager = new PromptManager($io, $this->config);
+    $this->promptManager = new PromptManager($io, $this->config);
     $this->printManager = new PrintManager($io, $this->config);
 
     return $this->doExecute();
@@ -117,8 +125,11 @@ protected function doExecute(): int {
     return self::SUCCESS;
   }
 
+  /**
+   * Ask questions and return a bag of answers.
+   */
   protected function askQuestions(): AbstractBag {
-    $this->questionManager->askQuestions(function (PromptManager $qm): void {
+    $this->promptManager->askQuestions(function (PromptManager $qm): void {
       $is_installed = InstallManager::isInstalled($this->config->getDstDir());
 
       // // @todo remove this.
@@ -197,18 +208,24 @@ protected function askQuestions(): AbstractBag {
     });
 
     if (!$this->config->isQuiet()) {
-      $summary = $this->questionManager->getAnswersSummary();
+      $summary = $this->promptManager->getAnswersSummary();
       $this->printManager->printSummary($summary, 'INSTALLATION SUMMARY');
     }
 
-    return $this->questionManager->getAnswers();
+    return $this->promptManager->getAnswers();
   }
 
-  protected function askShouldProceed() {
+  /**
+   * Ask whether to proceed with the installation.
+   *
+   * @return bool
+   *   Whether to proceed with the installation.
+   */
+  protected function askShouldProceed(): bool {
     $proceed = TRUE;
 
     if (!$this->config->isQuiet()) {
-      $proceed = $this->questionManager->ask(ProceedDrevopsInstallPrompt::ID);
+      $proceed = $this->promptManager->ask(ProceedDrevopsInstallPrompt::ID);
     }
 
     // Kill-switch to not proceed with install. If false, the installation will
@@ -221,7 +238,7 @@ protected function askShouldProceed() {
   }
 
   /**
-   * Initialise output.
+   * Initialise the input/output.
    *
    * @param \Symfony\Component\Console\Output\OutputInterface $output
    *   Output.
diff --git a/.drevops/installer/src/InstallManager.php b/.drevops/installer/src/InstallManager.php
index 032f902b5..4f99b55a4 100644
--- a/.drevops/installer/src/InstallManager.php
+++ b/.drevops/installer/src/InstallManager.php
@@ -7,9 +7,10 @@
 use DrevOps\Installer\Utils\Executor;
 use DrevOps\Installer\Utils\Files;
 use DrevOps\Installer\Utils\Output;
+use DrevOps\Installer\Utils\Tokenizer;
 
 /**
- *
+ * Install manager.
  */
 class InstallManager {
 
@@ -18,8 +19,18 @@ class InstallManager {
    */
   final public const INSTALLER_DRUPAL_VERSION = 9;
 
+  /**
+   * Download manager.
+   *
+   * @var \DrevOps\Installer\Utils\Downloader
+   */
   protected $downloadManager;
 
+  /**
+   * Config.
+   *
+   * @var \DrevOps\Installer\Bag\Config
+   */
   protected $config;
 
   /**
@@ -34,16 +45,35 @@ public static function isInstalled(string $dst_dir): bool {
   }
 
   public function install($config): void {
+    $this->config = $config;
+
+    $this->checkRequirements();
+
+    $this->downloadManager->download();
+
+    $this->prepareDestination();
+
+    Tokenizer::replaceTokens();
+
+    $this->copyFiles();
+
+    ProcessorManager::processDemo();
   }
 
+  /**
+   * Check requirements.
+   */
   public function checkRequirements(): void {
-    Executor::commandExists('git');
-    Executor::commandExists('tar');
-    Executor::commandExists('composer');
+    Executor::validateCommandExists('git');
+    Executor::validateCommandExists('tar');
+    Executor::validateCommandExists('composer');
   }
 
+  /**
+   * Prepare destination directory.
+   */
   public function prepareDestination(): void {
-    $dst = Config::getDstDir();
+    $dst = Config::getInstance()->getDstDir();
 
     if (!is_dir($dst)) {
       Output::status(sprintf('Creating destination directory "%s".', $dst), Output::INSTALLER_STATUS_MESSAGE, FALSE);
@@ -69,8 +99,11 @@ public function prepareDestination(): void {
     Output::status('Done', Output::INSTALLER_STATUS_SUCCESS);
   }
 
+  /**
+   * Copy files.
+   */
   public function copyFiles(): void {
-    $src = Config::get(Env::INSTALLER_TMP_DIR);
+    $src = Config::getInstance()->get(Env::INSTALLER_TMP_DIR);
     $dst = Config::getDstDir();
 
     // Due to the way symlinks can be ordered, we cannot copy files one-by-one
diff --git a/.drevops/installer/src/InstallerApp.php b/.drevops/installer/src/InstallerApp.php
index bc2f5a5f1..25be00967 100644
--- a/.drevops/installer/src/InstallerApp.php
+++ b/.drevops/installer/src/InstallerApp.php
@@ -6,10 +6,13 @@
 use Symfony\Component\Console\Application;
 
 /**
- *
+ * Installer application.
  */
 class InstallerApp extends Application {
 
+  /**
+   * {@inheritdoc}
+   */
   public function __construct(string $name = 'UNKNOWN', string $version = 'UNKNOWN') {
     parent::__construct($name, $version);
 
diff --git a/.drevops/installer/src/PrintManager.php b/.drevops/installer/src/PrintManager.php
index a5f662673..ec103a1ea 100644
--- a/.drevops/installer/src/PrintManager.php
+++ b/.drevops/installer/src/PrintManager.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Style\SymfonyStyle;
 
 /**
- *
+ * Print manager.
  */
 class PrintManager {
 
@@ -25,6 +25,9 @@ public function printHeader(): void {
     }
   }
 
+  /**
+   * Print header for interactive mode.
+   */
   public function printHeaderInteractive(): void {
     $commit = $this->config->get(Env::INSTALLER_COMMIT);
 
@@ -53,6 +56,9 @@ public function printHeaderInteractive(): void {
     Formatter::printBox($this->io, $content, 'WELCOME TO DREVOPS INTERACTIVE INSTALLER');
   }
 
+  /**
+   * Print header for quiet mode.
+   */
   public function printHeaderQuiet(): void {
     $commit = $this->config->get(Env::INSTALLER_COMMIT);
 
@@ -78,19 +84,33 @@ public function printHeaderQuiet(): void {
     $this->io->setVerbosity($verbosity_level);
   }
 
+  /**
+   * Print summary.
+   *
+   * @param array $values
+   *   The values to print.
+   * @param string $title
+   *   The title.
+   */
   public function printSummary($values, $title): void {
-    $values = array_map(static function ($key, $value) : array {
-        return [$key => $value];
+    $values = array_map(static function ($key, $value): array {
+      return [$key => $value];
     }, array_keys($values), $values);
 
     $this->io->writeln(sprintf('  <options=bold>%s</>', $title));
     $this->io->definitionList(...$values);
   }
 
+  /**
+   * Print abort message.
+   */
   public function printAbort(): void {
     Formatter::printBox($this->io, 'Aborting DrevOps installation. No files were changed.', 'INSTALLATION ABORTED');
   }
 
+  /**
+   * Print footer.
+   */
   public function printFooter(): void {
     $output = '';
 
diff --git a/.drevops/installer/src/Processor/DatabaseDownloadSourceProcessor.php b/.drevops/installer/src/Processor/DatabaseDownloadSourceProcessor.php
index 678e732ba..40b2a537b 100644
--- a/.drevops/installer/src/Processor/DatabaseDownloadSourceProcessor.php
+++ b/.drevops/installer/src/Processor/DatabaseDownloadSourceProcessor.php
@@ -11,7 +11,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Database download source processor.
  */
 class DatabaseDownloadSourceProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/DatabaseImageProcessor.php b/.drevops/installer/src/Processor/DatabaseImageProcessor.php
index 23fe54c2a..74151fb42 100644
--- a/.drevops/installer/src/Processor/DatabaseImageProcessor.php
+++ b/.drevops/installer/src/Processor/DatabaseImageProcessor.php
@@ -10,7 +10,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Database download source processor.
  */
 class DatabaseImageProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/DemoModeProcessor.php b/.drevops/installer/src/Processor/DemoModeProcessor.php
index 799bd32d7..36087b92c 100644
--- a/.drevops/installer/src/Processor/DemoModeProcessor.php
+++ b/.drevops/installer/src/Processor/DemoModeProcessor.php
@@ -11,7 +11,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Demo mode processor.
  */
 class DemoModeProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/DemoProcessor.php b/.drevops/installer/src/Processor/DemoProcessor.php
index d501b0ed2..95bd58bee 100644
--- a/.drevops/installer/src/Processor/DemoProcessor.php
+++ b/.drevops/installer/src/Processor/DemoProcessor.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Demo processor.
  */
 class DemoProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/DeployTypeProcessor.php b/.drevops/installer/src/Processor/DeployTypeProcessor.php
index f37bca5c8..5815775b8 100644
--- a/.drevops/installer/src/Processor/DeployTypeProcessor.php
+++ b/.drevops/installer/src/Processor/DeployTypeProcessor.php
@@ -11,7 +11,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Deploy type processor.
  */
 class DeployTypeProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/DrevopsInternalProcess.php b/.drevops/installer/src/Processor/DrevopsInternalProcess.php
index 3db8aab17..ee768741a 100644
--- a/.drevops/installer/src/Processor/DrevopsInternalProcess.php
+++ b/.drevops/installer/src/Processor/DrevopsInternalProcess.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * DrevOps internal processor.
  */
 class DrevopsInternalProcess extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/EnableCommentedCodeProcessor.php b/.drevops/installer/src/Processor/EnableCommentedCodeProcessor.php
index 5e054a532..28a1b0029 100644
--- a/.drevops/installer/src/Processor/EnableCommentedCodeProcessor.php
+++ b/.drevops/installer/src/Processor/EnableCommentedCodeProcessor.php
@@ -8,7 +8,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Enable commented code processor.
  */
 class EnableCommentedCodeProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/OverrideExistingDbProcessor.php b/.drevops/installer/src/Processor/OverrideExistingDbProcessor.php
index 7ba9b8155..5bfed542a 100644
--- a/.drevops/installer/src/Processor/OverrideExistingDbProcessor.php
+++ b/.drevops/installer/src/Processor/OverrideExistingDbProcessor.php
@@ -8,7 +8,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Override existing db processor.
  */
 class OverrideExistingDbProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/PreserveAcquiaProcessor.php b/.drevops/installer/src/Processor/PreserveAcquiaProcessor.php
index 5d1964ede..32744e9ed 100644
--- a/.drevops/installer/src/Processor/PreserveAcquiaProcessor.php
+++ b/.drevops/installer/src/Processor/PreserveAcquiaProcessor.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Preserve Acquia processor.
  */
 class PreserveAcquiaProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/PreserveDocCommentsProcessor.php b/.drevops/installer/src/Processor/PreserveDocCommentsProcessor.php
index f6c2a901a..12d440150 100644
--- a/.drevops/installer/src/Processor/PreserveDocCommentsProcessor.php
+++ b/.drevops/installer/src/Processor/PreserveDocCommentsProcessor.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Preserve doc comments processor.
  */
 class PreserveDocCommentsProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/PreserveDrevopsInfoProcessor.php b/.drevops/installer/src/Processor/PreserveDrevopsInfoProcessor.php
index 5bcd2724c..f4411541d 100644
--- a/.drevops/installer/src/Processor/PreserveDrevopsInfoProcessor.php
+++ b/.drevops/installer/src/Processor/PreserveDrevopsInfoProcessor.php
@@ -8,7 +8,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Preserve DrevOps info processor.
  */
 class PreserveDrevopsInfoProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/PreserveFtpProcessor.php b/.drevops/installer/src/Processor/PreserveFtpProcessor.php
index 01a2f56bf..18666e23c 100644
--- a/.drevops/installer/src/Processor/PreserveFtpProcessor.php
+++ b/.drevops/installer/src/Processor/PreserveFtpProcessor.php
@@ -8,7 +8,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Preserve FTP processor.
  */
 class PreserveFtpProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/PreserveLagoonProcessor.php b/.drevops/installer/src/Processor/PreserveLagoonProcessor.php
index fbbb6bdb3..1c68d9ea3 100644
--- a/.drevops/installer/src/Processor/PreserveLagoonProcessor.php
+++ b/.drevops/installer/src/Processor/PreserveLagoonProcessor.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Preserve Lagoon processor.
  */
 class PreserveLagoonProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/PreserveRenovatebotProcessor.php b/.drevops/installer/src/Processor/PreserveRenovatebotProcessor.php
index 0760b3d89..87edf73a4 100644
--- a/.drevops/installer/src/Processor/PreserveRenovatebotProcessor.php
+++ b/.drevops/installer/src/Processor/PreserveRenovatebotProcessor.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Preserve Renovatebot processor.
  */
 class PreserveRenovatebotProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/ProfileProcessor.php b/.drevops/installer/src/Processor/ProfileProcessor.php
index 4a2f855e6..a65882659 100644
--- a/.drevops/installer/src/Processor/ProfileProcessor.php
+++ b/.drevops/installer/src/Processor/ProfileProcessor.php
@@ -7,7 +7,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Profile processor.
  */
 class ProfileProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/ProvisionUseProfileProcessor.php b/.drevops/installer/src/Processor/ProvisionUseProfileProcessor.php
index d8bb5d6bb..20e1083ce 100644
--- a/.drevops/installer/src/Processor/ProvisionUseProfileProcessor.php
+++ b/.drevops/installer/src/Processor/ProvisionUseProfileProcessor.php
@@ -10,7 +10,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Provision use profile processor.
  */
 class ProvisionUseProfileProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/StringTokensProcessor.php b/.drevops/installer/src/Processor/StringTokensProcessor.php
index 1d0d83f15..9cb8b9fc8 100644
--- a/.drevops/installer/src/Processor/StringTokensProcessor.php
+++ b/.drevops/installer/src/Processor/StringTokensProcessor.php
@@ -9,7 +9,7 @@
 use function Symfony\Component\String\u;
 
 /**
- *
+ * String tokens processor.
  */
 class StringTokensProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/Processor/WebrootProcessor.php b/.drevops/installer/src/Processor/WebrootProcessor.php
index b2685f597..71d425945 100644
--- a/.drevops/installer/src/Processor/WebrootProcessor.php
+++ b/.drevops/installer/src/Processor/WebrootProcessor.php
@@ -7,7 +7,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- *
+ * Webroot processor.
  */
 class WebrootProcessor extends AbstractProcessor {
 
diff --git a/.drevops/installer/src/ProcessorManager.php b/.drevops/installer/src/ProcessorManager.php
index c42e59d68..1a4602833 100644
--- a/.drevops/installer/src/ProcessorManager.php
+++ b/.drevops/installer/src/ProcessorManager.php
@@ -2,28 +2,27 @@
 
 namespace DrevOps\Installer;
 
+use DrevOps\Installer\Bag\Config;
 use DrevOps\Installer\Processor\AbstractProcessor;
 use DrevOps\Installer\Utils\ClassLoader;
 
 /**
+ * Processor manager.
  *
+ * Orchestrates the processing of all processors.
  */
 class ProcessorManager {
 
   /**
    * Config object.
-   *
-   * @var \DrevOps\Installer\Bag\Config
    */
-  protected $config;
+  protected Config $config;
 
   /**
    * @param \Symfony\Component\Console\Output\OutputInterface $output
    */
-  public function __construct($config, /**
-                                        * Output object.
-                                        */
-  protected $output) {
+  public function __construct(Config $config,
+    protected $output) {
     $this->config = clone $config;
     $this->config->setReadOnly();
   }
@@ -34,12 +33,12 @@ public function __construct($config, /**
   public function process(): void {
     $classes = ClassLoader::load('Processor', AbstractProcessor::class);
 
-    $classes = array_filter($classes, static function ($class) : bool {
-        return $class::$weight > 0;
+    $classes = array_filter($classes, static function ($class): bool {
+      return $class::$weight > 0;
     });
 
-    usort($classes, static function ($a, $b) : int {
-        return $a::$weight <=> $b::$weight;
+    usort($classes, static function ($a, $b): int {
+      return $a::$weight <=> $b::$weight;
     });
 
     foreach ($classes as $class) {
diff --git a/.drevops/installer/src/Prompt/AbstractChoicePrompt.php b/.drevops/installer/src/Prompt/AbstractChoicePrompt.php
index 930949dc1..d8933a25d 100644
--- a/.drevops/installer/src/Prompt/AbstractChoicePrompt.php
+++ b/.drevops/installer/src/Prompt/AbstractChoicePrompt.php
@@ -11,10 +11,15 @@
 use Symfony\Component\Console\Question\Question;
 
 /**
- *
+ * Abstract class for choice prompts.
  */
 abstract class AbstractChoicePrompt extends AbstractPrompt {
 
+  /**
+   * Whether the prompt is multiselect.
+   *
+   * @var bool
+   */
   protected $isMultiselect = FALSE;
 
   /**
@@ -23,7 +28,7 @@ abstract class AbstractChoicePrompt extends AbstractPrompt {
    * @return array
    *   The choices array with keys as shortopts and values as longopts.
    */
-  abstract public static function choices();
+  abstract public static function choices(): array;
 
   /**
    * {@inheritdoc}
diff --git a/.drevops/installer/src/Prompt/AbstractConfirmationPrompt.php b/.drevops/installer/src/Prompt/AbstractConfirmationPrompt.php
index 0579207fe..ae355fcd5 100644
--- a/.drevops/installer/src/Prompt/AbstractConfirmationPrompt.php
+++ b/.drevops/installer/src/Prompt/AbstractConfirmationPrompt.php
@@ -9,7 +9,7 @@
 use Symfony\Component\Console\Question\Question;
 
 /**
- *
+ * Abstract confirmation prompt.
  */
 abstract class AbstractConfirmationPrompt extends AbstractPrompt {
 
diff --git a/.drevops/installer/src/Prompt/AbstractPrompt.php b/.drevops/installer/src/Prompt/AbstractPrompt.php
index 895c90188..c06ee153e 100644
--- a/.drevops/installer/src/Prompt/AbstractPrompt.php
+++ b/.drevops/installer/src/Prompt/AbstractPrompt.php
@@ -8,7 +8,7 @@
 use Symfony\Component\Console\Style\SymfonyStyle;
 
 /**
- *
+ * Abstract prompt.
  */
 abstract class AbstractPrompt {
 
diff --git a/.drevops/installer/src/Prompt/Concrete/DatabaseDownloadSourcePrompt.php b/.drevops/installer/src/Prompt/Concrete/DatabaseDownloadSourcePrompt.php
index 244c427f9..7732fa38e 100644
--- a/.drevops/installer/src/Prompt/Concrete/DatabaseDownloadSourcePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/DatabaseDownloadSourcePrompt.php
@@ -9,10 +9,15 @@
 use DrevOps\Installer\Utils\Env;
 
 /**
- *
+ * Database download source prompt.
  */
 class DatabaseDownloadSourcePrompt extends AbstractChoicePrompt {
 
+  /**
+   * The prompt ID.
+   */
+  final const ID = 'database_download_source';
+
   final const CHOICE_URL = 'url';
 
   final const CHOICE_FTP = 'ftp';
@@ -23,8 +28,6 @@ class DatabaseDownloadSourcePrompt extends AbstractChoicePrompt {
 
   final const CHOICE_NONE = 'none';
 
-  final const ID = 'database_download_source';
-
   /**
    * {@inheritdoc}
    */
diff --git a/.drevops/installer/src/Prompt/Concrete/DatabaseImagePrompt.php b/.drevops/installer/src/Prompt/Concrete/DatabaseImagePrompt.php
index 98b4bb8fe..b7293b27e 100644
--- a/.drevops/installer/src/Prompt/Concrete/DatabaseImagePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/DatabaseImagePrompt.php
@@ -11,10 +11,13 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Database image prompt.
  */
 class DatabaseImagePrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'database_image';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/DatabaseStoreTypePrompt.php b/.drevops/installer/src/Prompt/Concrete/DatabaseStoreTypePrompt.php
index b3de365ac..02e9c56ff 100644
--- a/.drevops/installer/src/Prompt/Concrete/DatabaseStoreTypePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/DatabaseStoreTypePrompt.php
@@ -9,27 +9,30 @@
 use DrevOps\Installer\Utils\Env;
 
 /**
- *
+ * Database store type prompt.
  */
 class DatabaseStoreTypePrompt extends AbstractChoicePrompt {
 
+  /**
+   * The prompt ID.
+   */
+  final const ID = 'database_store_type';
+
   final const CHOICE_FILE = 'file';
 
   final const CHOICE_DOCKER_IMAGE = 'docker_image';
 
-  final const ID = 'database_store_type';
-
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Database store type';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return ' When developing locally, do you want to import the database dump from the file or store it imported in the docker image for faster builds?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/DeployTypePrompt.php b/.drevops/installer/src/Prompt/Concrete/DeployTypePrompt.php
index fcdc91e98..40303796b 100644
--- a/.drevops/installer/src/Prompt/Concrete/DeployTypePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/DeployTypePrompt.php
@@ -12,10 +12,15 @@
 use Symfony\Component\Console\Style\SymfonyStyle;
 
 /**
- *
+ * Deploy type prompt.
  */
 class DeployTypePrompt extends AbstractChoicePrompt {
 
+  /**
+   * The prompt ID.
+   */
+  final const ID = 'deploy_type';
+
   final const CHOICE_ARTIFACT = 'artifact';
 
   final const CHOICE_WEBHOOK = 'webhook';
@@ -26,8 +31,6 @@ class DeployTypePrompt extends AbstractChoicePrompt {
 
   final const CHOICE_NONE = 'none';
 
-  final const ID = 'deploy_type';
-
   public function __construct(SymfonyStyle $io) {
     parent::__construct($io);
     $this->isMultiselect = TRUE;
@@ -36,14 +39,14 @@ public function __construct(SymfonyStyle $io) {
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Deployment';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return 'How do you deploy your code to the hosting?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/MachineNamePrompt.php b/.drevops/installer/src/Prompt/Concrete/MachineNamePrompt.php
index c849afd2d..27cf210db 100644
--- a/.drevops/installer/src/Prompt/Concrete/MachineNamePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/MachineNamePrompt.php
@@ -10,23 +10,26 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Machine name prompt.
  */
 class MachineNamePrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'machine_name';
 
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Machine name';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return 'What is your site machine name?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/ModulePrefixPrompt.php b/.drevops/installer/src/Prompt/Concrete/ModulePrefixPrompt.php
index a4926d848..db818e864 100644
--- a/.drevops/installer/src/Prompt/Concrete/ModulePrefixPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/ModulePrefixPrompt.php
@@ -10,23 +10,26 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Module prefix prompt.
  */
 class ModulePrefixPrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'module_prefix';
 
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Module prefix';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return 'What is your project-specific module prefix?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/NamePrompt.php b/.drevops/installer/src/Prompt/Concrete/NamePrompt.php
index 3dc3c0da6..9d41dea74 100644
--- a/.drevops/installer/src/Prompt/Concrete/NamePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/NamePrompt.php
@@ -11,23 +11,26 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Name prompt.
  */
 class NamePrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'name';
 
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Site name';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return 'What is your site name?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/OrgMachineNamePrompt.php b/.drevops/installer/src/Prompt/Concrete/OrgMachineNamePrompt.php
index d4a900b9a..41e970c02 100644
--- a/.drevops/installer/src/Prompt/Concrete/OrgMachineNamePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/OrgMachineNamePrompt.php
@@ -10,23 +10,26 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Organisation machine name prompt.
  */
 class OrgMachineNamePrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'org_machine_name';
 
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Organisation machine name';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return 'What is your organization machine name?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/OrgPrompt.php b/.drevops/installer/src/Prompt/Concrete/OrgPrompt.php
index c359f1fc8..7a9a19e0b 100644
--- a/.drevops/installer/src/Prompt/Concrete/OrgPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/OrgPrompt.php
@@ -10,23 +10,26 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Organisation prompt.
  */
 class OrgPrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'org';
 
   /**
    * {@inheritdoc}
    */
-  public static function title():string {
+  public static function title(): string {
     return 'Organisation';
   }
 
   /**
    * {@inheritdoc}
    */
-  public static function question():string {
+  public static function question(): string {
     return 'What is your organization name?';
   }
 
diff --git a/.drevops/installer/src/Prompt/Concrete/OverrideExistingDbPrompt.php b/.drevops/installer/src/Prompt/Concrete/OverrideExistingDbPrompt.php
index 4dc3fd10c..4017c41c3 100644
--- a/.drevops/installer/src/Prompt/Concrete/OverrideExistingDbPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/OverrideExistingDbPrompt.php
@@ -9,10 +9,13 @@
 use DrevOps\Installer\Utils\Env;
 
 /**
- *
+ * Override existing database prompt.
  */
 class OverrideExistingDbPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'override_existing_db';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/PreserveAcquiaPrompt.php b/.drevops/installer/src/Prompt/Concrete/PreserveAcquiaPrompt.php
index b7737f734..76802c463 100644
--- a/.drevops/installer/src/Prompt/Concrete/PreserveAcquiaPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/PreserveAcquiaPrompt.php
@@ -10,10 +10,13 @@
 use DrevOps\Installer\Utils\Formatter;
 
 /**
- *
+ * Preserve Acquia prompt.
  */
 class PreserveAcquiaPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'preserve_acquia';
 
   /**
@@ -54,7 +57,7 @@ protected function discoveredValue(Config $config, Answers $answers): mixed {
    * {@inheritdoc}
    */
   public static function getFormattedValue(mixed $value): string {
-    return Formatter::formatEnabled($value);
+    return Formatter::formatEnabledDisabled($value);
   }
 
 }
diff --git a/.drevops/installer/src/Prompt/Concrete/PreserveDocCommentsPrompt.php b/.drevops/installer/src/Prompt/Concrete/PreserveDocCommentsPrompt.php
index 556fd8fdf..3a5489ec4 100644
--- a/.drevops/installer/src/Prompt/Concrete/PreserveDocCommentsPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/PreserveDocCommentsPrompt.php
@@ -8,10 +8,13 @@
 use DrevOps\Installer\Utils\Files;
 
 /**
- *
+ * Preserve Acquia prompt.
  */
 class PreserveDocCommentsPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'preserve_doc_comments';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/PreserveDrevopsInfoPrompt.php b/.drevops/installer/src/Prompt/Concrete/PreserveDrevopsInfoPrompt.php
index 4d3cafb55..55867f9a4 100644
--- a/.drevops/installer/src/Prompt/Concrete/PreserveDrevopsInfoPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/PreserveDrevopsInfoPrompt.php
@@ -8,10 +8,13 @@
 use DrevOps\Installer\Utils\Files;
 
 /**
- *
+ * Preserve Acquia prompt.
  */
 class PreserveDrevopsInfoPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'preserve_drevops_info';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/PreserveFtpPrompt.php b/.drevops/installer/src/Prompt/Concrete/PreserveFtpPrompt.php
index 026862fc8..07a0322e8 100644
--- a/.drevops/installer/src/Prompt/Concrete/PreserveFtpPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/PreserveFtpPrompt.php
@@ -10,10 +10,13 @@
 use DrevOps\Installer\Utils\Formatter;
 
 /**
- *
+ * Preserve FTP prompt.
  */
 class PreserveFtpPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'preserve_ftp';
 
   /**
@@ -50,7 +53,7 @@ protected function discoveredValue(Config $config, Answers $answers): mixed {
    * {@inheritdoc}
    */
   public static function getFormattedValue(mixed $value): string {
-    return Formatter::formatEnabled($value);
+    return Formatter::formatEnabledDisabled($value);
   }
 
 }
diff --git a/.drevops/installer/src/Prompt/Concrete/PreserveLagoonPrompt.php b/.drevops/installer/src/Prompt/Concrete/PreserveLagoonPrompt.php
index db1050150..9a2e6297c 100644
--- a/.drevops/installer/src/Prompt/Concrete/PreserveLagoonPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/PreserveLagoonPrompt.php
@@ -9,10 +9,13 @@
 use DrevOps\Installer\Utils\Formatter;
 
 /**
- *
+ * Preserve FTP prompt.
  */
 class PreserveLagoonPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'preserve_lagoon';
 
   /**
@@ -63,7 +66,7 @@ protected function discoveredValue(Config $config, Answers $answers): mixed {
    * {@inheritdoc}
    */
   public static function getFormattedValue(mixed $value): string {
-    return Formatter::formatEnabled($value);
+    return Formatter::formatEnabledDisabled($value);
   }
 
 }
diff --git a/.drevops/installer/src/Prompt/Concrete/PreserveRenovatebotPrompt.php b/.drevops/installer/src/Prompt/Concrete/PreserveRenovatebotPrompt.php
index 78e73947a..c6b95a4ed 100644
--- a/.drevops/installer/src/Prompt/Concrete/PreserveRenovatebotPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/PreserveRenovatebotPrompt.php
@@ -9,10 +9,13 @@
 use DrevOps\Installer\Utils\Formatter;
 
 /**
- *
+ * Preserve Renovatebot prompt.
  */
 class PreserveRenovatebotPrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'preserve_renovatebot';
 
   /**
@@ -51,7 +54,7 @@ protected function discoveredValue(Config $config, Answers $answers): mixed {
    * {@inheritdoc}
    */
   public static function getFormattedValue(mixed $value): string {
-    return Formatter::formatEnabled($value);
+    return Formatter::formatEnabledDisabled($value);
   }
 
 }
diff --git a/.drevops/installer/src/Prompt/Concrete/ProceedDrevopsInstallPrompt.php b/.drevops/installer/src/Prompt/Concrete/ProceedDrevopsInstallPrompt.php
index 4d5ac0009..41c6b8128 100644
--- a/.drevops/installer/src/Prompt/Concrete/ProceedDrevopsInstallPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/ProceedDrevopsInstallPrompt.php
@@ -8,10 +8,13 @@
 use Symfony\Component\Console\Question\Question;
 
 /**
- *
+ * Prompt to confirm the installation.
  */
 class ProceedDrevopsInstallPrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'proceed_drevops_install';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/ProfilePrompt.php b/.drevops/installer/src/Prompt/Concrete/ProfilePrompt.php
index ef1e4116f..64252a2cd 100644
--- a/.drevops/installer/src/Prompt/Concrete/ProfilePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/ProfilePrompt.php
@@ -11,10 +11,13 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Profile prompt.
  */
 class ProfilePrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'profile';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/ProvisionUseProfilePrompt.php b/.drevops/installer/src/Prompt/Concrete/ProvisionUseProfilePrompt.php
index 83e0cacf2..fa4d7bdae 100644
--- a/.drevops/installer/src/Prompt/Concrete/ProvisionUseProfilePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/ProvisionUseProfilePrompt.php
@@ -9,10 +9,13 @@
 use DrevOps\Installer\Utils\Env;
 
 /**
- *
+ * Preserve FTP prompt.
  */
 class ProvisionUseProfilePrompt extends AbstractConfirmationPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'provision_use_profile';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/ThemePrompt.php b/.drevops/installer/src/Prompt/Concrete/ThemePrompt.php
index f505eab61..eff061025 100644
--- a/.drevops/installer/src/Prompt/Concrete/ThemePrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/ThemePrompt.php
@@ -13,10 +13,13 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Theme prompt.
  */
 class ThemePrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'theme';
 
   /**
@@ -70,7 +73,7 @@ protected function discoveredValue(Config $config, Answers $answers): mixed {
       return NULL;
     }
 
-    if ($value) {
+    if ($value !== '' && $value !== '0') {
       $value = basename((string) $value);
       $value = str_replace(['.info.yml', '.info'], '', $value);
     }
diff --git a/.drevops/installer/src/Prompt/Concrete/UrlPrompt.php b/.drevops/installer/src/Prompt/Concrete/UrlPrompt.php
index 7eb2b4bb0..236676750 100644
--- a/.drevops/installer/src/Prompt/Concrete/UrlPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/UrlPrompt.php
@@ -9,10 +9,13 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * URL prompt.
  */
 class UrlPrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'url';
 
   /**
diff --git a/.drevops/installer/src/Prompt/Concrete/WebrootPrompt.php b/.drevops/installer/src/Prompt/Concrete/WebrootPrompt.php
index ff7dde5dd..1440a3547 100644
--- a/.drevops/installer/src/Prompt/Concrete/WebrootPrompt.php
+++ b/.drevops/installer/src/Prompt/Concrete/WebrootPrompt.php
@@ -13,10 +13,13 @@
 use DrevOps\Installer\Utils\Validator;
 
 /**
- *
+ * Web root prompt.
  */
 class WebrootPrompt extends AbstractPrompt {
 
+  /**
+   * The prompt ID.
+   */
   final const ID = 'webroot';
 
   /**
@@ -68,7 +71,7 @@ protected function validator(mixed $value, Config $config, Answers $answers): vo
    * {@inheritdoc}
    */
   protected function valueNormalizer($value, Config $config, Answers $answers): mixed {
-    return trim((string) Strings::toMachineName($value), '/');
+    return trim(Strings::toMachineName($value), '/');
   }
 
 }
diff --git a/.drevops/installer/src/Prompt/PromptManager.php b/.drevops/installer/src/Prompt/PromptManager.php
index 07dae6959..3042d8a52 100644
--- a/.drevops/installer/src/Prompt/PromptManager.php
+++ b/.drevops/installer/src/Prompt/PromptManager.php
@@ -10,17 +10,37 @@
 use function Symfony\Component\String\u;
 
 /**
- *
+ * Prompt manager.
  */
 class PromptManager {
 
+  /**
+   * A bag of answers.
+   */
   protected AbstractBag $answers;
 
+  /**
+   * Prompt manager constructor.
+   *
+   * @param \Symfony\Component\Console\Style\SymfonyStyle $io
+   *   The Symfony style.
+   * @param \DrevOps\Installer\Bag\Config $config
+   *   The config.
+   */
   public function __construct(protected SymfonyStyle $io, protected Config $config) {
     // Always get a fresh bag of answers.
     $this->answers = Answers::getInstance()->clear();
   }
 
+  /**
+   * Ask questions.
+   *
+   * @param mixed $callback
+   *   The callback to ask questions.
+   *
+   * @return $this
+   *   The prompt manager.
+   */
   public function askQuestions(mixed $callback): static {
     // If the callback is set, invoke it.
     if (!is_callable($callback)) {
@@ -32,6 +52,17 @@ public function askQuestions(mixed $callback): static {
     return $this;
   }
 
+  /**
+   * Ask a question.
+   *
+   * @param string $question_id
+   *   The question ID.
+   * @param bool $is_quiet
+   *   Whether to ask the question quietly.
+   *
+   * @return mixed
+   *   The answer.
+   */
   public function ask(string $question_id, $is_quiet = FALSE) {
     $class = $this->getPromptClass($question_id);
 
@@ -47,14 +78,42 @@ public function ask(string $question_id, $is_quiet = FALSE) {
     return $answer;
   }
 
+  /**
+   * Get the answers.
+   *
+   * @return \DrevOps\Installer\Bag\AbstractBag
+   *   The answers bag.
+   */
   public function getAnswers(): AbstractBag {
     return $this->answers;
   }
 
-  public function getAnswer(string $question_id, $default = NULL) {
+  /**
+   * Get an answer.
+   *
+   * @param string $question_id
+   *   The question ID.
+   * @param mixed $default
+   *   The default value.
+   *
+   * @return mixed
+   *   The answer.
+   */
+  public function getAnswer(string $question_id, mixed $default = NULL) {
     return $this->answers->get($question_id, $default);
   }
 
+  /**
+   * Set an answer.
+   *
+   * @param string $question_id
+   *   The question ID.
+   * @param mixed $value
+   *   The value.
+   *
+   * @return $this
+   *   The prompt manager.
+   */
   public function setAnswer(string $question_id, mixed $value): static {
     $this->answers->set($question_id, $value);
 
@@ -62,7 +121,10 @@ public function setAnswer(string $question_id, mixed $value): static {
   }
 
   /**
+   * Get the answers summary.
+   *
    * @return mixed[]
+   *   The answers summary.
    */
   public function getAnswersSummary(): array {
     $values = [];
@@ -76,6 +138,15 @@ public function getAnswersSummary(): array {
     return $values;
   }
 
+  /**
+   * Get the prompt class.
+   *
+   * @param string|null $id
+   *   The prompt ID.
+   *
+   * @return string
+   *   The prompt class.
+   */
   protected function getPromptClass(?string $id): string {
     $classes = ClassLoader::load('Prompt', AbstractPrompt::class);
 
diff --git a/.drevops/installer/src/Trait/ReadOnlyTrait.php b/.drevops/installer/src/Trait/ReadOnlyTrait.php
index 3acef7bc0..b1ec4360b 100644
--- a/.drevops/installer/src/Trait/ReadOnlyTrait.php
+++ b/.drevops/installer/src/Trait/ReadOnlyTrait.php
@@ -3,16 +3,33 @@
 namespace DrevOps\Installer\Trait;
 
 /**
- *
+ * Read only trait.
  */
 trait ReadOnlyTrait {
 
+  /**
+   * The read only flag.
+   *
+   * @var bool
+   */
   protected $readOnly = FALSE;
 
+  /**
+   * Sets the read only flag.
+   *
+   * @param bool $value
+   *   The value.
+   */
   public function setReadOnly($value = TRUE): void {
     $this->readOnly = $value;
   }
 
+  /**
+   * Returns the read only flag.
+   *
+   * @return bool
+   *   The value.
+   */
   public function isReadOnly(): bool {
     return $this->readOnly;
   }
diff --git a/.drevops/installer/src/Trait/SingletonTrait.php b/.drevops/installer/src/Trait/SingletonTrait.php
index 7ffb37368..dcdd7fc21 100644
--- a/.drevops/installer/src/Trait/SingletonTrait.php
+++ b/.drevops/installer/src/Trait/SingletonTrait.php
@@ -9,7 +9,6 @@
  * Classes extending this abstract class will inherit Singleton behavior.
  *
  * @phpstan-consistent-constructor
- * @package Merlin\Reporting\Utils
  */
 trait SingletonTrait {
 
@@ -27,6 +26,9 @@ trait SingletonTrait {
    */
   protected static $calledInternally = FALSE;
 
+  /**
+   * Constructor.
+   */
   public function __construct() {
     if (!self::$calledInternally) {
       throw new \Exception('Cannot instantiate Singleton class directly. Use ::getInstance() instead.');
@@ -49,10 +51,16 @@ final public static function getInstance(): static {
     return static::$instance;
   }
 
+  /**
+   * Cloning of Singleton is disallowed.
+   */
   final public function __clone() {
     throw new \Exception('Cloning of Singleton is disallowed.');
   }
 
+  /**
+   * Unserializing instances of Singleton classes is disallowed.
+   */
   final public function __wakeup() {
     throw new \Exception('Unserializing instances of Singleton classes is disallowed.');
   }
diff --git a/.drevops/installer/src/Utils/Arrays.php b/.drevops/installer/src/Utils/Arrays.php
index 9fd1252c8..f5bff11de 100644
--- a/.drevops/installer/src/Utils/Arrays.php
+++ b/.drevops/installer/src/Utils/Arrays.php
@@ -3,7 +3,7 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * Array utilities.
  */
 class Arrays {
 
@@ -60,10 +60,11 @@ public static function sortByKeyArray(array $array, array $keys): array {
   public static function sortByValueArray(array $array, array $values): array {
     $sorted = $array;
 
-    uasort($sorted, static function ($a, $b) use ($values) : int {
-        $a_index = array_search($a, $values, TRUE);
-        $b_index = array_search($b, $values, TRUE);
-        return ($a_index === FALSE ? PHP_INT_MAX : $a_index) <=> ($b_index === FALSE ? PHP_INT_MAX : $b_index);
+    uasort($sorted, static function ($a, $b) use ($values): int {
+      $a_index = array_search($a, $values, TRUE);
+      $b_index = array_search($b, $values, TRUE);
+
+      return ($a_index === FALSE ? PHP_INT_MAX : $a_index) <=> ($b_index === FALSE ? PHP_INT_MAX : $b_index);
     });
 
     // Preserve non-numeric keys and reset numeric ones.
@@ -80,6 +81,17 @@ public static function sortByValueArray(array $array, array $values): array {
     return $result;
   }
 
+  /**
+   * Reindex array.
+   *
+   * @param array $values
+   *   The array to reindex.
+   * @param int $start
+   *   The start index.
+   *
+   * @return array
+   *   The reindexed array.
+   */
   public static function reindex(array $values, $start): array {
     return empty($values)
       ? []
diff --git a/.drevops/installer/src/Utils/ClassLoader.php b/.drevops/installer/src/Utils/ClassLoader.php
index 4a9cda875..9eff4100d 100644
--- a/.drevops/installer/src/Utils/ClassLoader.php
+++ b/.drevops/installer/src/Utils/ClassLoader.php
@@ -3,7 +3,7 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- * Utilities.
+ * Class loader.
  */
 class ClassLoader {
 
@@ -58,7 +58,7 @@ public static function load(string $path, $parent_class = NULL): array {
    * @return array
    *   Array of loaded class instances.
    */
-  public static function filterByClass($parent_class, $classes = NULL) {
+  public static function filterByClass($parent_class, $classes = NULL): array {
     $classes = $classes ?? get_declared_classes();
 
     foreach ($classes as $k => $class) {
diff --git a/.drevops/installer/src/Utils/ConstantsLoader.php b/.drevops/installer/src/Utils/ConstantsLoader.php
index 8f6044ab0..9df79bba9 100644
--- a/.drevops/installer/src/Utils/ConstantsLoader.php
+++ b/.drevops/installer/src/Utils/ConstantsLoader.php
@@ -3,17 +3,32 @@
 namespace DrevOps\Installer\Utils;
 
 /**
+ * Constants loader.
  *
+ * Loads constants from a class.
  */
 class ConstantsLoader {
 
+  /**
+   * Load constants from a class.
+   *
+   * @param object|string $class
+   *   The class name or object.
+   * @param string|null $prefix
+   *   The prefix to filter constants by.
+   * @param bool $prefix_is_key
+   *   Whether the prefix is a key or a value.
+   *
+   * @return array
+   *   The constants.
+   */
   public static function load(object|string $class, string|null $prefix = NULL, $prefix_is_key = TRUE): array {
     $reflection = new \ReflectionClass($class);
     $constants = $reflection->getConstants();
 
     if ($prefix) {
-      $constants = array_filter($constants, static function ($value, $key) use ($prefix, $prefix_is_key) : bool {
-          return str_starts_with($prefix_is_key ? $key : $value, $prefix);
+      $constants = array_filter($constants, static function ($value, $key) use ($prefix, $prefix_is_key): bool {
+        return str_starts_with($prefix_is_key ? $key : $value, $prefix);
       }, ARRAY_FILTER_USE_BOTH);
     }
 
diff --git a/.drevops/installer/src/Utils/DotEnv.php b/.drevops/installer/src/Utils/DotEnv.php
index 1c30daa67..9afa6d925 100644
--- a/.drevops/installer/src/Utils/DotEnv.php
+++ b/.drevops/installer/src/Utils/DotEnv.php
@@ -3,10 +3,19 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * Dotenv utilities.
  */
 class DotEnv {
 
+  /**
+   * Parse .env file.
+   *
+   * @param string $filename
+   *   The filename.
+   *
+   * @return array|false
+   *   The parsed .env file or FALSE if the file is not readable.
+   */
   public static function parseDotenv($filename = '.env'): false|array {
     if (!is_readable($filename)) {
       return FALSE;
@@ -19,6 +28,14 @@ public static function parseDotenv($filename = '.env'): false|array {
     return parse_ini_string($contents);
   }
 
+  /**
+   * Load .env file.
+   *
+   * @param string $filename
+   *   The filename.
+   * @param bool $override_existing
+   *   Whether to override existing environment variables.
+   */
   public static function loadDotenv($filename = '.env', $override_existing = FALSE): void {
     $parsed = DotEnv::parseDotenv($filename);
 
@@ -45,7 +62,20 @@ public static function loadDotenv($filename = '.env', $override_existing = FALSE
     }
   }
 
-  public static function getValueFromDstDotenv(string $dst_dir, $name, $default = NULL) {
+  /**
+   * Get value from .env file.
+   *
+   * @param string $dst_dir
+   *   The destination directory.
+   * @param string $name
+   *   The name of the variable.
+   * @param mixed $default
+   *   The default value.
+   *
+   * @return mixed
+   *   The value.
+   */
+  public static function getValueFromDstDotenv(string $dst_dir, $name, mixed $default = NULL): mixed {
     // Environment variables always take precedence.
     $env_value = Env::get($name, NULL);
     if (!is_null($env_value)) {
diff --git a/.drevops/installer/src/Utils/Downloader.php b/.drevops/installer/src/Utils/Downloader.php
index 0f09990f6..3c42548ee 100644
--- a/.drevops/installer/src/Utils/Downloader.php
+++ b/.drevops/installer/src/Utils/Downloader.php
@@ -3,9 +3,10 @@
 namespace DrevOps\Installer\Utils;
 
 use DrevOps\Installer\Bag\Config;
+use Symfony\Component\Console\Output\Output;
 
 /**
- *
+ * Downloader.
  */
 class Downloader {
 
@@ -28,11 +29,11 @@ public static function findLatestDrevopsRelease($org, $project, $release_prefix)
   }
 
   public static function downloadRemote(): void {
-    $dst = Config::get(Env::DREVOPS_INSTALLER_TMP_DIR);
+    $dst = Config::getInstance()->get(Env::INSTALLER_TMP_DIR);
     $org = 'drevops';
     $project = 'drevops';
-    $ref = Config::get(Env::DREVOPS_INSTALLER_COMMIT);
-    $release_prefix = Config::get(Env::DREVOPS_VERSION);
+    $ref = Config::getInstance()->get(Env::INSTALLER_COMMIT);
+    $release_prefix = Config::getInstance()->get(Env::DREVOPS_VERSION);
 
     if ($ref == 'HEAD') {
       $ref = Downloader::findLatestDrevopsRelease($org, $project, $release_prefix);
@@ -52,9 +53,9 @@ public static function downloadRemote(): void {
   }
 
   public static function downloadLocal(): void {
-    $dst = Config::get(Env::DREVOPS_INSTALLER_TMP_DIR);
-    $repo = Config::get(Env::DREVOPS_INSTALLER_LOCAL_REPO);
-    $ref = Config::get(Env::DREVOPS_INSTALLER_COMMIT);
+    $dst = Config::getInstance()->get(Env::DREVOPS_INSTALLER_TMP_DIR);
+    $repo = Config::getInstance()->get(Env::DREVOPS_INSTALLER_LOCAL_REPO);
+    $ref = Config::getInstance()->get(Env::DREVOPS_INSTALLER_COMMIT);
 
     Output::status(sprintf('Downloading DrevOps from the local repository "%s" at ref "%s".', $repo, $ref), Output::INSTALLER_STATUS_MESSAGE, FALSE);
 
@@ -77,7 +78,7 @@ public static function downloadLocal(): void {
    * Download DrevOps source files.
    */
   public function download(): void {
-    if (Config::get(Env::DREVOPS_INSTALLER_LOCAL_REPO)) {
+    if (Config::getInstance()->get(Env::DREVOPS_INSTALLER_LOCAL_REPO)) {
       Downloader::downloadLocal();
     }
     else {
diff --git a/.drevops/installer/src/Utils/Env.php b/.drevops/installer/src/Utils/Env.php
index 213b27827..ebd7152c7 100644
--- a/.drevops/installer/src/Utils/Env.php
+++ b/.drevops/installer/src/Utils/Env.php
@@ -69,7 +69,7 @@ public static function get($name, $default = NULL) {
   /**
    * Get all constants defined in this class.
    */
-  public static function getConstants():array {
+  public static function getConstants(): array {
     return ConstantsLoader::load(__CLASS__, 'DREVOPS_', FALSE);
   }
 
diff --git a/.drevops/installer/src/Utils/Executor.php b/.drevops/installer/src/Utils/Executor.php
index a2000c328..4da21dc57 100644
--- a/.drevops/installer/src/Utils/Executor.php
+++ b/.drevops/installer/src/Utils/Executor.php
@@ -3,7 +3,7 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * Executor.
  */
 class Executor {
 
@@ -20,7 +20,16 @@ public static function doExec($command, array &$output = NULL, &$return_var = NU
     return exec($command, $output, $return_var);
   }
 
-  public static function commandExists(string $command): void {
+  /**
+   * Check if command exists.
+   *
+   * @param string $command
+   *   The command to check.
+   *
+   * @throws \RuntimeException
+   *   If the command does not exist.
+   */
+  public static function validateCommandExists(string $command): void {
     static::doExec('command -v ' . $command, $lines, $ret);
     if ($ret === 1) {
       throw new \RuntimeException(sprintf('Command "%s" does not exist in the current environment.', $command));
diff --git a/.drevops/installer/src/Utils/Files.php b/.drevops/installer/src/Utils/Files.php
index 65b87812f..cc4e235f0 100644
--- a/.drevops/installer/src/Utils/Files.php
+++ b/.drevops/installer/src/Utils/Files.php
@@ -3,12 +3,27 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * Files utility.
  */
 class Files {
 
-  public static function copyRecursive($source, $dest, $permissions = 0755, $copy_empty_dirs = FALSE): bool {
-    $parent = dirname((string) $dest);
+  /**
+   * Copy a file, or recursively copy a folder and its contents.
+   *
+   * @param string $source
+   *   Source path.
+   * @param string $dest
+   *   Destination path.
+   * @param int $permissions
+   *   New folder creation permissions.
+   * @param bool $copy_empty_dirs
+   *   Whether to copy empty directories.
+   *
+   * @return bool
+   *   TRUE on success, FALSE on failure.
+   */
+  public static function copyRecursive(string $source, string $dest, int $permissions = 0755, bool $copy_empty_dirs = FALSE): bool {
+    $parent = dirname($dest);
 
     if (!is_dir($parent)) {
       mkdir($parent, $permissions, TRUE);
@@ -21,8 +36,8 @@ public static function copyRecursive($source, $dest, $permissions = 0755, $copy_
       $cur_dir = getcwd();
       chdir($parent);
       $ret = TRUE;
-      if (!is_readable(basename((string) $dest))) {
-        $ret = symlink(readlink($source), basename((string) $dest));
+      if (!is_readable(basename($dest))) {
+        $ret = symlink(readlink($source), basename($dest));
       }
       chdir($cur_dir);
 
@@ -55,25 +70,48 @@ public static function copyRecursive($source, $dest, $permissions = 0755, $copy_
     return TRUE;
   }
 
-  public static function rmdirRecursiveEmpty($directory, $options = []): void {
+  /**
+   * Remove a directory and its contents.
+   *
+   * @param string $directory
+   *   Directory path.
+   * @param array $options
+   *   Options.
+   */
+  public static function rmdirRecursiveEmpty(string $directory, $options = []): void {
     if (self::dirIsEmpty($directory)) {
       self::rmdirRecursive($directory, $options);
-      self::rmdirRecursiveEmpty(dirname((string) $directory), $options);
+      self::rmdirRecursiveEmpty(dirname($directory), $options);
     }
   }
 
-  public static function tempdir($dir = NULL, $prefix = 'tmp_', $mode = 0700, $max_attempts = 1000): false|string {
+  /**
+   * Create a temporary directory.
+   *
+   * @param string|null $dir
+   *   The directory where the temporary directory should be created.
+   * @param string $prefix
+   *   The prefix of the directory.
+   * @param int $mode
+   *   The permissions of the directory.
+   * @param int $max_attempts
+   *   The maximum number of attempts to create the directory.
+   *
+   * @return false|string
+   *   The path of the created directory or FALSE on failure.
+   */
+  public static function tempdir(?string $dir = NULL, string $prefix = 'tmp_', int $mode = 0700, int $max_attempts = 1000): false|string {
     if (is_null($dir)) {
       $dir = sys_get_temp_dir();
     }
 
-    $dir = rtrim((string) $dir, DIRECTORY_SEPARATOR);
+    $dir = rtrim($dir, DIRECTORY_SEPARATOR);
 
     if (!is_dir($dir) || !is_writable($dir)) {
       return FALSE;
     }
 
-    if (strpbrk((string) $prefix, '\\/:*?"<>|') !== FALSE) {
+    if (strpbrk($prefix, '\\/:*?"<>|') !== FALSE) {
       return FALSE;
     }
     $attempts = 0;
@@ -89,6 +127,16 @@ public static function tempdir($dir = NULL, $prefix = 'tmp_', $mode = 0700, $max
     return $path;
   }
 
+  /**
+   * Replace string in filenames.
+   *
+   * @param string $search
+   *   The value being searched for, otherwise known as the needle.
+   * @param string $replace
+   *   The replacement value that replaces found search values.
+   * @param string $dir
+   *   The directory where the replacement should be done.
+   */
   public static function replaceStringFilename($search, $replace, string $dir): void {
     $files = self::scandirRecursive($dir, self::ignorePaths());
     foreach ($files as $filename) {
@@ -103,14 +151,33 @@ public static function replaceStringFilename($search, $replace, string $dir): vo
     }
   }
 
+  /**
+   * Check if a directory is empty.
+   *
+   * @param string $directory
+   *   The directory path.
+   *
+   * @return bool
+   *   Whether the directory is empty.
+   */
   public static function dirIsEmpty($directory): bool {
     return is_dir($directory) && count(scandir($directory)) === 2;
   }
 
   /**
-   * @return mixed[]
+   * Recursively scan a directory for files.
+   *
+   * @param string $dir
+   *   The directory path.
+   * @param array $ignore_paths
+   *   The paths to ignore.
+   * @param bool $should_include_dirs
+   *   Whether to include directories in the result.
+   *
+   * @return array
+   *   The discovered files.
    */
-  public static function scandirRecursive(string $dir, $ignore_paths = [], $include_dirs = FALSE): array {
+  public static function scandirRecursive(string $dir, array $ignore_paths = [], bool $should_include_dirs = FALSE): array {
     $discovered = [];
 
     if (is_dir($dir)) {
@@ -124,10 +191,10 @@ public static function scandirRecursive(string $dir, $ignore_paths = [], $includ
           }
         }
         if (is_dir($path)) {
-          if ($include_dirs) {
+          if ($should_include_dirs) {
             $discovered[] = $path;
           }
-          $discovered = array_merge($discovered, self::scandirRecursive($path, $ignore_paths, $include_dirs));
+          $discovered = array_merge($discovered, self::scandirRecursive($path, $ignore_paths, $should_include_dirs));
         }
         else {
           $discovered[] = $path;
@@ -138,6 +205,17 @@ public static function scandirRecursive(string $dir, $ignore_paths = [], $includ
     return $discovered;
   }
 
+  /**
+   * Check if a file contains a string.
+   *
+   * @param string $needle
+   *   The value being searched for.
+   * @param string $file
+   *   The file path.
+   *
+   * @return int|bool
+   *   The number of times the needle substring occurs in the haystack string.
+   */
   public static function fileContains($needle, $file): int|bool {
     if (!is_readable($file)) {
       return FALSE;
@@ -152,6 +230,16 @@ public static function fileContains($needle, $file): int|bool {
     return str_contains($content, (string) $needle);
   }
 
+  /**
+   * Replace content in files.
+   *
+   * @param string $needle
+   *   The value being searched for.
+   * @param string $replacement
+   *   The replacement value that replaces found search values.
+   * @param string $dir
+   *   The directory where the replacement should be done.
+   */
   public static function dirReplaceContent($needle, $replacement, string $dir): void {
     $files = self::scandirRecursive($dir, self::ignorePaths());
     foreach ($files as $filename) {
@@ -159,6 +247,16 @@ public static function dirReplaceContent($needle, $replacement, string $dir): vo
     }
   }
 
+  /**
+   * Replace content in a file.
+   *
+   * @param string $needle
+   *   The value being searched for.
+   * @param string $replacement
+   *   The replacement value that replaces found search values.
+   * @param string $filename
+   *   The file path.
+   */
   public static function fileReplaceContent($needle, $replacement, $filename) {
     if (!is_readable($filename) || self::fileIsExcludedFromProcessing($filename)) {
       return FALSE;
@@ -177,6 +275,14 @@ public static function fileReplaceContent($needle, $replacement, $filename) {
     }
   }
 
+  /**
+   * Recursively remove a directory and its contents.
+   *
+   * @param string $directory
+   *   The directory path.
+   * @param array $options
+   *   Options.
+   */
   public static function rmdirRecursive($directory, array $options = []): void {
     if (!isset($options['traverseSymlinks'])) {
       $options['traverseSymlinks'] = FALSE;
@@ -208,6 +314,17 @@ public static function rmdirRecursive($directory, array $options = []): void {
     }
   }
 
+  /**
+   * Check if a directory contains a string.
+   *
+   * @param string $needle
+   *   The value being searched for.
+   * @param string $dir
+   *   The directory path.
+   *
+   * @return bool
+   *   Whether the directory contains the string.
+   */
   public static function dirContains($needle, string $dir): bool {
     $files = self::scandirRecursive($dir, self::ignorePaths());
     foreach ($files as $filename) {
@@ -219,6 +336,17 @@ public static function dirContains($needle, string $dir): bool {
     return FALSE;
   }
 
+  /**
+   * Get the value of a key from composer.json.
+   *
+   * @param string $name
+   *   The key name.
+   * @param string $dir
+   *   The directory path.
+   *
+   * @return mixed|null
+   *   The value of the key or NULL if the key does not exist.
+   */
   public static function getComposerJsonValue($name, string $dir) {
     $composer_json = $dir . DIRECTORY_SEPARATOR . 'composer.json';
     if (is_readable($composer_json)) {
@@ -231,6 +359,17 @@ public static function getComposerJsonValue($name, string $dir) {
     return NULL;
   }
 
+  /**
+   * Find a matching path.
+   *
+   * @param string|array $paths
+   *   The path or paths.
+   * @param string|null $text
+   *   The text to search for.
+   *
+   * @return string|null
+   *   The matching path or NULL if no match is found.
+   */
   public static function findMatchingPath($paths, $text = NULL) {
     $paths = is_array($paths) ? $paths : [$paths];
 
@@ -257,6 +396,12 @@ public static function findMatchingPath($paths, $text = NULL) {
     return NULL;
   }
 
+  /**
+   * Ignore paths.
+   *
+   * @return array
+   *   The paths to ignore.
+   */
   public static function ignorePaths(): array {
     return array_merge([
       '/.git/',
@@ -267,6 +412,12 @@ public static function ignorePaths(): array {
     ], self::internalPaths());
   }
 
+  /**
+   * Internal paths.
+   *
+   * @return array
+   *   The internal paths.
+   */
   public static function internalPaths(): array {
     return [
       '/scripts/drevops/installer/install',
@@ -277,12 +428,30 @@ public static function internalPaths(): array {
     ];
   }
 
-  public static function isInternalPath($relative_path): bool {
-    $relative_path = '/' . ltrim((string) $relative_path, './');
+  /**
+   * Check if a path is internal.
+   *
+   * @param string $relative_path
+   *   The relative path.
+   *
+   * @return bool
+   *   Whether the path is internal.
+   */
+  public static function isInternalPath(string $relative_path): bool {
+    $relative_path = '/' . ltrim($relative_path, './');
 
     return in_array($relative_path, Files::internalPaths());
   }
 
+  /**
+   * Check if a file is excluded from processing.
+   *
+   * @param string $filename
+   *   The filename.
+   *
+   * @return int|false
+   *   The result of the match or FALSE if the file is not excluded.
+   */
   public static function fileIsExcludedFromProcessing($filename): int|false {
     $excluded_patterns = [
       '.+\.png',
@@ -295,6 +464,17 @@ public static function fileIsExcludedFromProcessing($filename): int|false {
     return preg_match('/^(' . implode('|', $excluded_patterns) . ')$/', (string) $filename);
   }
 
+  /**
+   * Glob recursively.
+   *
+   * @param string $pattern
+   *   The pattern.
+   * @param int $flags
+   *   The flags.
+   *
+   * @return array|false
+   *   The result of the glob or FALSE if no match is found.
+   */
   public static function globRecursive($pattern, $flags = 0): array|false {
     $files = glob($pattern, $flags | GLOB_BRACE);
     foreach (glob(dirname((string) $pattern) . '/{,.}*[!.]', GLOB_BRACE | GLOB_ONLYDIR | GLOB_NOSORT) as $dir) {
@@ -304,6 +484,12 @@ public static function globRecursive($pattern, $flags = 0): array|false {
     return $files;
   }
 
+  /**
+   * Remove a file.
+   *
+   * @param string $file
+   *   The file path.
+   */
   public static function remove($file): void {
     @unlink($file);
   }
diff --git a/.drevops/installer/src/Utils/Formatter.php b/.drevops/installer/src/Utils/Formatter.php
index 7a134c9af..95264f3ba 100644
--- a/.drevops/installer/src/Utils/Formatter.php
+++ b/.drevops/installer/src/Utils/Formatter.php
@@ -7,26 +7,77 @@
 use Symfony\Component\Console\Helper\TableStyle;
 
 /**
- *
+ * Formatter.
  */
 class Formatter {
 
-  public static function formatNotEmpty($value, $default) {
+  /**
+   * Format a value if it is not empty.
+   *
+   * @param mixed $value
+   *   The value.
+   * @param mixed $default
+   *   The default value.
+   *
+   * @return mixed
+   *   The formatted value.
+   */
+  public static function formatNotEmpty(mixed $value, mixed $default) {
     return empty($value) ? $default : $value;
   }
 
-  public static function formatEmpty($value) {
+  /**
+   * Format a value if it is empty.
+   *
+   * @param mixed $value
+   *   The value.
+   *
+   * @return mixed
+   *   The formatted value.
+   */
+  public static function formatEmpty(mixed $value) {
     return empty($value) ? '(empty)' : $value;
   }
 
-  public static function formatYesNo($value): string {
+  /**
+   * Format a value as Yes or No.
+   *
+   * @param mixed $value
+   *   The value.
+   *
+   * @return string
+   *   The formatted value.
+   */
+  public static function formatYesNo(mixed $value): string {
     return empty($value) ? 'No' : 'Yes';
   }
 
-  public static function formatEnabled($value): string {
+  /**
+   * Format a value as Enabled or Disabled.
+   *
+   * @param mixed $value
+   *   The value.
+   *
+   * @return string
+   *   The formatted value.
+   */
+  public static function formatEnabledDisabled(mixed $value): string {
     return empty($value) ? 'Disabled' : 'Enabled';
   }
 
+  /**
+   * Format a value as a list of key-value pairs.
+   *
+   * @param array $values
+   *   The values.
+   * @param string $delim
+   *   The delimiter.
+   * @param int $width
+   *   The width.
+   *
+   * @return string
+   *   The formatted value.
+   */
   public static function formatValuesList($values, $delim = '', $width = 80): string {
     // Line width - length of delimiters * 2 - 2 spacers.
     $line_width = $width - strlen((string) $delim) * 2 - 2;
@@ -71,25 +122,39 @@ public static function formatValuesList($values, $delim = '', $width = 80): stri
     return implode('', $output);
   }
 
+  /**
+   * Print a box.
+   *
+   * @param \Symfony\Component\Console\Output\OutputInterface $output
+   *   The output.
+   * @param array|string $values
+   *   The values.
+   * @param string $title
+   *   The title.
+   * @param string $style
+   *   The style.
+   * @param int $pad_rows
+   *   The number of padding rows.
+   */
   public static function printBox($output, $values, $title = '', $style = 'box-double', $pad_rows = 1): void {
     $table = new Table($output);
 
     if (is_array($values)) {
-      $rows = array_map(static function ($key, $value) : TableSeparator|array {
-          return $value instanceof TableSeparator ? $value : [$key, $value];
+      $rows = array_map(static function ($key, $value): TableSeparator|array {
+        return $value instanceof TableSeparator ? $value : [$key, $value];
       }, array_keys($values), $values);
     }
     else {
       $rows = [[$values]];
     }
 
-    if ($pad_rows) {
+    if ($pad_rows !== 0) {
       array_unshift($rows, array_fill(0, $pad_rows, ''));
       $rows[] = array_fill(0, $pad_rows, '');
     }
 
     $table->setRows($rows);
-    if ($title) {
+    if ($title !== '' && $title !== '0') {
       $table->setHeaderTitle($title);
     }
 
diff --git a/.drevops/installer/src/Utils/Git.php b/.drevops/installer/src/Utils/Git.php
index 0f979f915..9d5d4ddce 100644
--- a/.drevops/installer/src/Utils/Git.php
+++ b/.drevops/installer/src/Utils/Git.php
@@ -3,10 +3,23 @@
 namespace DrevOps\Installer\Utils;
 
 /**
+ * Git.
  *
+ * Git utilities.
  */
 class Git {
 
+  /**
+   * Check if a file is tracked by git.
+   *
+   * @param string $path
+   *   The path.
+   * @param string $dir
+   *   The directory.
+   *
+   * @return bool
+   *   Whether the file is tracked by git.
+   */
   public static function fileIsTracked($path, string $dir): bool {
     if (is_dir($dir . DIRECTORY_SEPARATOR . '.git')) {
       $cwd = getcwd();
diff --git a/.drevops/installer/src/Utils/Strings.php b/.drevops/installer/src/Utils/Strings.php
index c17db539c..66549891a 100644
--- a/.drevops/installer/src/Utils/Strings.php
+++ b/.drevops/installer/src/Utils/Strings.php
@@ -3,21 +3,32 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * String utilities.
  */
 class Strings {
 
-  public static function toMachineName($value, $preserve_chars = []) {
+  /**
+   * Convert a string to a machine name.
+   *
+   * @param string $value
+   *   The value.
+   * @param array $preserve_chars
+   *   The characters to preserve.
+   *
+   * @return string
+   *   The machine name.
+   */
+  public static function toMachineName(string $value, $preserve_chars = []): string {
     if (empty($value)) {
       return $value;
     }
 
     // If the value doesn't start with an uppercase or lowercase letter, return as-is.
-    if (!preg_match('/^[a-zA-Z]/', trim((string) $value))) {
+    if (!preg_match('/^[a-zA-Z]/', trim($value))) {
       return $value;
     }
 
-    $value = trim((string) $value);
+    $value = trim($value);
 
     $preserve = '';
     foreach ($preserve_chars as $char) {
@@ -30,34 +41,76 @@ public static function toMachineName($value, $preserve_chars = []) {
     return strtolower($value);
   }
 
-  public static function toHumanName($value): ?string {
-    $value = preg_replace('/[^a-zA-Z0-9]/', ' ', (string) $value);
+  /**
+   * Convert a string to a human name.
+   *
+   * @param string $value
+   *   The value.
+   *
+   * @return string|null
+   *   The human name.
+   */
+  public static function toHumanName(string $value): ?string {
+    $value = preg_replace('/[^a-zA-Z0-9]/', ' ', $value);
     $value = trim($value);
 
     return preg_replace('/\s{2,}/', ' ', $value);
   }
 
-  public static function toAbbreviation($value, $maxlength = 2, $word_delim = '_'): string|array {
-    $value = trim((string) $value);
+  /**
+   * Convert a string to an abbreviation.
+   *
+   * @param string $value
+   *   The value.
+   * @param int $maxlength
+   *   The maximum length.
+   * @param string $word_delim
+   *   The word delimiter.
+   *
+   * @return string
+   *   The abbreviation.
+   */
+  public static function toAbbreviation(string $value, $maxlength = 2, $word_delim = '_'): string {
+    $value = trim($value);
     $value = str_replace(' ', '_', $value);
     $parts = explode($word_delim, $value);
     if (count($parts) == 1) {
       return strlen($parts[0]) > $maxlength ? substr($parts[0], 0, $maxlength) : $value;
     }
 
-    $value = implode('', array_map(static function ($word) : string {
-        return substr($word, 0, 1);
+    $value = implode('', array_map(static function ($word): string {
+      return substr($word, 0, 1);
     }, $parts));
 
     return substr($value, 0, $maxlength);
   }
 
+  /**
+   * Convert a string to a URL.
+   *
+   * @param string $string
+   *   The string.
+   *
+   * @return string
+   *   The URL.
+   */
   public static function toUrl(string $string): string {
     // @todo Add more replacements.
     return str_replace([' ', '_'], '-', $string);
   }
 
-  public static function listToString(mixed $value, $is_multiline = FALSE): mixed {
+  /**
+   * Convert a string to a list.
+   *
+   * @param mixed $value
+   *   The value.
+   * @param bool $is_multiline
+   *   Whether to use multiline.
+   *
+   * @return string
+   *   The value.
+   */
+  public static function listToString(mixed $value, $is_multiline = FALSE): string {
     if (is_array($value)) {
       $value = implode($is_multiline ? PHP_EOL : ', ', $value);
     }
@@ -65,12 +118,21 @@ public static function listToString(mixed $value, $is_multiline = FALSE): mixed
     return $value;
   }
 
-  public static function isRegex($str): bool {
+  /**
+   * Check if a string is a regex.
+   *
+   * @param string $str
+   *   The string.
+   *
+   * @return bool
+   *   Whether the string is a regex.
+   */
+  public static function isRegex(string $str): bool {
     // First character is always the start.
     $start = $str[0];
 
     // Exclude any of the invalid starting characters.
-    if (preg_match('/[*?[:alnum:] \\\\]/', (string) $start)) {
+    if (preg_match('/[*?[:alnum:] \\\\]/', $start)) {
       return FALSE;
     }
 
@@ -83,7 +145,7 @@ public static function isRegex($str): bool {
 
     // The regex should look something like this: /pattern/modifiers
     // Extract the pattern and the modifiers.
-    if (!preg_match('#^' . preg_quote((string) $start) . '(.*?)' . preg_quote((string) $end) . '([imsxuADU]*)$#', (string) $str, $matches)) {
+    if (!preg_match('#^' . preg_quote($start) . '(.*?)' . preg_quote($end) . '([imsxuADU]*)$#', $str, $matches)) {
       return FALSE;
     }
 
diff --git a/.drevops/installer/src/Utils/Token.php b/.drevops/installer/src/Utils/Token.php
index bed67210a..d44b2e6c7 100644
--- a/.drevops/installer/src/Utils/Token.php
+++ b/.drevops/installer/src/Utils/Token.php
@@ -40,7 +40,7 @@ class Token {
   /**
    * Get all constants defined in this class.
    */
-  public static function getConstants():array {
+  public static function getConstants(): array {
     return ConstantsLoader::load(__CLASS__);
   }
 
diff --git a/.drevops/installer/src/Utils/Tokenizer.php b/.drevops/installer/src/Utils/Tokenizer.php
index fb1cc8711..f599814b1 100644
--- a/.drevops/installer/src/Utils/Tokenizer.php
+++ b/.drevops/installer/src/Utils/Tokenizer.php
@@ -3,10 +3,18 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * Tokenizer.
  */
 class Tokenizer {
 
+  /**
+   * Remove token from directory with content.
+   *
+   * @param string $token
+   *   The token.
+   * @param string $dir
+   *   The directory.
+   */
   public static function removeTokenWithContentFromDir(string $token, string $dir): void {
     self::validateToken($token);
     $files = Files::scandirRecursive($dir, Files::ignorePaths());
@@ -15,7 +23,15 @@ public static function removeTokenWithContentFromDir(string $token, string $dir)
     }
   }
 
-  public static function removeTokenLineFromDir($token, string $dir): void {
+  /**
+   * Remove token line from directory.
+   *
+   * @param string $token
+   *   The token.
+   * @param string $dir
+   *   The directory.
+   */
+  public static function removeTokenLineFromDir(string $token, string $dir): void {
     if (!empty($token)) {
       self::validateToken($token);
       $files = Files::scandirRecursive($dir, Files::ignorePaths());
@@ -25,7 +41,19 @@ public static function removeTokenLineFromDir($token, string $dir): void {
     }
   }
 
-  public static function removeTokenFromFile($filename, $token_begin, $token_end = NULL, $with_content = FALSE): void {
+  /**
+   * Remove token from file.
+   *
+   * @param string $filename
+   *   The filename.
+   * @param string|null $token_begin
+   *   The token begin.
+   * @param string|null $token_end
+   *   The token end.
+   * @param bool $with_content
+   *   Whether to remove content.
+   */
+  public static function removeTokenFromFile(string $filename, ?string $token_begin, string $token_end = NULL, bool $with_content = FALSE): void {
     if (Files::fileIsExcludedFromProcessing($filename)) {
       return;
     }
@@ -35,12 +63,27 @@ public static function removeTokenFromFile($filename, $token_begin, $token_end =
     file_put_contents($filename, $newContent);
   }
 
-  public static function removeTokensFromString($content, $token_begin, $token_end = NULL, $with_content = FALSE): string {
+  /**
+   * Remove tokens from string.
+   *
+   * @param string $content
+   *   The content.
+   * @param string $token_begin
+   *   The token begin.
+   * @param string|null $token_end
+   *   The token end.
+   * @param bool $with_content
+   *   Whether to remove content.
+   *
+   * @return string
+   *   The content.
+   */
+  public static function removeTokensFromString(string $content, string $token_begin, ?string $token_end = NULL, bool $with_content = FALSE): string {
     $token_end = $token_end ?? $token_begin;
 
-    if ($token_begin != $token_end) {
-      $token_begin_count = preg_match_all('/' . preg_quote((string) $token_begin) . '/', (string) $content);
-      $token_end_count = preg_match_all('/' . preg_quote((string) $token_end) . '/', (string) $content);
+    if ($token_begin !== $token_end) {
+      $token_begin_count = preg_match_all('/' . preg_quote($token_begin) . '/', $content);
+      $token_end_count = preg_match_all('/' . preg_quote($token_end) . '/', $content);
       if ($token_begin_count !== $token_end_count) {
         throw new \RuntimeException(sprintf('Invalid begin and end token count: begin is %s(%s), end is %s(%s).', $token_begin, $token_begin_count, $token_end, $token_end_count));
       }
@@ -49,15 +92,15 @@ public static function removeTokensFromString($content, $token_begin, $token_end
     $out = [];
     $within_token = FALSE;
 
-    $lines = explode(PHP_EOL, (string) $content);
+    $lines = explode(PHP_EOL, $content);
     foreach ($lines as $line) {
-      if (str_contains($line, (string) $token_begin)) {
+      if (str_contains($line, $token_begin)) {
         if ($with_content) {
           $within_token = TRUE;
         }
         continue;
       }
-      elseif (str_contains($line, (string) $token_end)) {
+      elseif (str_contains($line, $token_end)) {
         if ($with_content) {
           $within_token = FALSE;
         }
diff --git a/.drevops/installer/src/Utils/Validator.php b/.drevops/installer/src/Utils/Validator.php
index 67eb52f7c..3ec3d5212 100644
--- a/.drevops/installer/src/Utils/Validator.php
+++ b/.drevops/installer/src/Utils/Validator.php
@@ -3,11 +3,20 @@
 namespace DrevOps\Installer\Utils;
 
 /**
- *
+ * Validator.
  */
 class Validator {
 
-  public static function notEmpty($value): void {
+  /**
+   * Validate the value is not empty.
+   *
+   * @param mixed $value
+   *   The value.
+   *
+   * @throws \Exception
+   *   If the value is empty.
+   */
+  public static function notEmpty(mixed $value): void {
     $value = is_array($value) ? $value : [$value];
     $value = array_filter($value);
 
@@ -16,19 +25,50 @@ public static function notEmpty($value): void {
     }
   }
 
-  public static function humanName($value): void {
+  /**
+   * Validate the value is a human name.
+   *
+   * @param mixed $value
+   *   The value.
+   *
+   * @throws \Exception
+   *   If the value is not a human name.
+   */
+  public static function humanName(mixed $value): void {
     if (!preg_match('/^[a-zA-Z0-9\- ]+$/', (string) $value)) {
       throw new \Exception('The name must contain only letters, numbers, and dashes.');
     }
   }
 
-  public static function machineName($value): void {
+  /**
+   * Validate the value is a machine name.
+   *
+   * @param mixed $value
+   *   The value.
+   *
+   * @throws \Exception
+   *   If the value is not a machine name.
+   */
+  public static function machineName(mixed $value): void {
     if (!preg_match('/^[a-z0-9_]+$/', (string) $value)) {
       throw new \Exception('The name must contain only lowercase letters, numbers, and underscores.');
     }
   }
 
-  public static function inList($items, $value, $is_multiple = FALSE): void {
+  /**
+   * Validate the value is in a list.
+   *
+   * @param array $items
+   *   The list of items.
+   * @param mixed $value
+   *   The value.
+   * @param bool $is_multiple
+   *   Whether the value is a list.
+   *
+   * @throws \Exception
+   *   If the value is not in the list.
+   */
+  public static function inList($items, mixed $value, $is_multiple = FALSE): void {
     $value = is_array($value) ? $value : [$value];
 
     if ($is_multiple) {
@@ -42,14 +82,31 @@ public static function inList($items, $value, $is_multiple = FALSE): void {
     }
   }
 
-  public static function dockerImageName($value): void {
+  /**
+   * Validate the value is a valid Docker image name.
+   *
+   * @param mixed $value
+   *   The value.
+   */
+  public static function dockerImageName(string $value): void {
     $pattern = '%^(?<Name>(?<=^)(?:(?<Domain>(?:(?:localhost|[\w-]+(?:\.[\w-]+)+)(?::\d+)?)|[\w]+:\d+)\/)?\/?(?<Namespace>(?:(?:[a-z0-9]+(?:(?:[._]|__|[-]*)[a-z0-9]+)*)\/)*)(?<Repo>[a-z0-9-]+))[:@]?(?<Reference>(?<=:)(?<Tag>[\w][\w.-]{0,127})|(?<=@)(?<Digest>[A-Za-z][A-Za-z0-9]*(?:[-_+.][A-Za-z][A-Za-z0-9]*)*[:][0-9A-Fa-f]{32,}))?$%m';
-    if (!preg_match($pattern, (string) $value)) {
+    if (!preg_match($pattern, $value)) {
       throw new \Exception('The name must contain only lowercase letters, numbers, dashes, and underscores.');
     }
   }
 
-  public static function url($value, $require_protocol = FALSE): void {
+  /**
+   * Validate the value is a valid URL.
+   *
+   * @param mixed $value
+   *   The value.
+   * @param bool $require_protocol
+   *   Whether the URL must have a protocol.
+   *
+   * @throws \Exception
+   *   If the value is not a valid URL.
+   */
+  public static function url(mixed $value, $require_protocol = FALSE): void {
     if ($require_protocol === FALSE && !str_contains((string) $value, '://')) {
       // If the URL starts with '//' (protocol-relative), prepend with 'http:'.
       $value = (str_starts_with((string) $value, '//')) ? 'http:' . $value : 'http://' . $value;
diff --git a/.drevops/installer/tests/phpunit/Unit/Prompt/Abstract/AbstractChoicePromptUnitTest.php b/.drevops/installer/tests/phpunit/Unit/Prompt/Abstract/AbstractChoicePromptUnitTest.php
index 10aaf6bb8..d9d243b49 100644
--- a/.drevops/installer/tests/phpunit/Unit/Prompt/Abstract/AbstractChoicePromptUnitTest.php
+++ b/.drevops/installer/tests/phpunit/Unit/Prompt/Abstract/AbstractChoicePromptUnitTest.php
@@ -433,29 +433,42 @@ public static function dataProviderAsk(): array {
 }
 
 /**
- *
+ * Erroneous choice prompt fixture.
  */
 class ErroneousChoicePromptFixture extends AbstractChoicePrompt {
 
-  public static function choices() {
+  /**
+   * {@inheritdoc}
+   */
+  public static function choices(): array {
+    return [];
   }
 
 }
 
 /**
- *
+ * Filled choice prompt fixture.
  */
 class FilledChoicePromptFixture extends AbstractChoicePrompt {
 
+  /**
+   * {@inheritdoc}
+   */
   public static function title(): string {
     return 'Fixture title';
   }
 
+  /**
+   * {@inheritdoc}
+   */
   public static function question(): string {
     return 'Fixture question';
   }
 
-  public static function choices() {
+  /**
+   * {@inheritdoc}
+   */
+  public static function choices(): array {
     return [
       'choice1',
       'choice2',
@@ -466,10 +479,13 @@ public static function choices() {
 }
 
 /**
- *
+ * Filled multi choice prompt fixture.
  */
 class FilledMultiChoicePromptFixture extends FilledChoicePromptFixture {
 
+  /**
+   * {@inheritdoc}
+   */
   protected $isMultiselect = TRUE;
 
 }
diff --git a/.drevops/installer/tests/phpunit/Unit/Prompt/PromptManagerTest.php b/.drevops/installer/tests/phpunit/Unit/Prompt/PromptManagerTest.php
index d0d648ac3..625e31b4a 100644
--- a/.drevops/installer/tests/phpunit/Unit/Prompt/PromptManagerTest.php
+++ b/.drevops/installer/tests/phpunit/Unit/Prompt/PromptManagerTest.php
@@ -45,13 +45,13 @@ public function testAskQuestions(mixed $callback, ?string $expectedException = N
   public static function dataProviderAskQuestions(): array {
     return [
       'valid callback' => [
-        static function ($manager) : void {
+        static function ($manager): void {
         },
         NULL,
       ],
       'invalid callback not accessible' => [
         static function () {
-            return (new \DrevOps\Installer\Tests\Unit\Prompt\PromptTestClassWithProtectedCallback())->callbackExample();
+          return (new \DrevOps\Installer\Tests\Unit\Prompt\PromptTestClassWithProtectedCallback())->callbackExample();
         },
         \Error::class,
       ],
@@ -99,11 +99,12 @@ public function testGetPromptClassInvalid(): void {
 }
 
 /**
- *
+ * Test class with protected callback.
  */
 class PromptTestClassWithProtectedCallback {
 
-  protected function callbackExample() {
+  protected function callbackExample(): mixed {
+    return TRUE;
   }
 
 }
diff --git a/.drevops/installer/tests/phpunit/Unit/Prompt/PromptUnitTestCase.php b/.drevops/installer/tests/phpunit/Unit/Prompt/PromptUnitTestCase.php
index 3d52994e9..827f2e882 100644
--- a/.drevops/installer/tests/phpunit/Unit/Prompt/PromptUnitTestCase.php
+++ b/.drevops/installer/tests/phpunit/Unit/Prompt/PromptUnitTestCase.php
@@ -10,7 +10,7 @@
 use Symfony\Component\Console\Style\SymfonyStyle;
 
 /**
- *
+ * Prompt unit test case.
  */
 abstract class PromptUnitTestCase extends UnitTestCase {
 
diff --git a/.drevops/installer/tests/phpunit/Unit/Utils/DotEnvTest.php b/.drevops/installer/tests/phpunit/Unit/Utils/DotEnvTest.php
index 4ad15acf7..1ee7aaa49 100644
--- a/.drevops/installer/tests/phpunit/Unit/Utils/DotEnvTest.php
+++ b/.drevops/installer/tests/phpunit/Unit/Utils/DotEnvTest.php
@@ -2,7 +2,6 @@
 
 namespace Drevops\Installer\Tests\Unit\Utils;
 
-use DrevOps\Installer\Command\Installer;
 use Drevops\Installer\Tests\Unit\UnitTestCase;
 use DrevOps\Installer\Utils\DotEnv;
 
@@ -30,14 +29,14 @@ class DotEnvTest extends UnitTestCase {
    */
   protected $backupEnv;
 
-  public function setUp(): void {
+  protected function setUp(): void {
     $this->backupEnv = $GLOBALS['_ENV'];
     $this->backupServer = $GLOBALS['_SERVER'];
 
     parent::setUp();
   }
 
-  public function tearDown(): void {
+  protected function tearDown(): void {
     $GLOBALS['_ENV'] = $this->backupEnv;
     $GLOBALS['_SERVER'] = $this->backupServer;
   }
@@ -46,7 +45,7 @@ public function tearDown(): void {
    * @covers \DrevOps\Installer\Utils\DotEnv::loadDotenv
    * @runInSeparateProcess
    */
-  public function testLoadDotEnv() {
+  public function testLoadDotEnv(): void {
     $content = 'var1=val1';
     $filename = $this->createFixtureEnvFile($content);
 
@@ -73,8 +72,8 @@ public function testLoadDotEnv() {
    * @dataProvider dataProviderGlobals
    * @runInSeparateProcess
    */
-  public function testGlobals($content, $env_before, $server_before, $env_after, $server_after, $allow_override) {
-    $filename = !empty($content) ? $this->createFixtureEnvFile($content) : 'randomfilename';
+  public function testGlobals(string $content, array $env_before, array $server_before, array $env_after, mixed $server_after, bool $allow_override): void {
+    $filename = empty($content) ? 'randomfilename' : $this->createFixtureEnvFile($content);
 
     $GLOBALS['_ENV'] = $env_before;
     $GLOBALS['_SERVER'] = $server_before;
@@ -88,7 +87,7 @@ public function testGlobals($content, $env_before, $server_before, $env_after, $
     $this->assertTrue(TRUE);
   }
 
-  public static function dataProviderGlobals() {
+  public static function dataProviderGlobals(): array {
     return [
       [
         '', [], [], [], [], FALSE,
@@ -217,7 +216,7 @@ public static function dataProviderGlobals() {
     ];
   }
 
-  protected function createFixtureEnvFile($content) {
+  protected function createFixtureEnvFile($content): string|false {
     $filename = tempnam(sys_get_temp_dir(), '.env');
     file_put_contents($filename, $content);