diff --git a/lib/Activity.php b/lib/Activity.php
index 92fee3fc..73adae07 100644
--- a/lib/Activity.php
+++ b/lib/Activity.php
@@ -54,12 +54,10 @@ class Activity implements \OCP\Activity\IExtension {
 	const SUBJECT_ITEM_RENAMED_SELF = 'item_renamed_self';
 
 
-	protected $URLGenerator;
-	protected $factory;
-
-	public function __construct(IURLGenerator $URLGenerator, IFactory $factory) {
-		$this->URLGenerator = $URLGenerator;
-		$this->factory = $factory;
+	public function __construct(
+		protected IURLGenerator $URLGenerator,
+		protected IFactory $factory,
+	) {
 	}
 
 
diff --git a/lib/BackgroundJob/ExpireCredentials.php b/lib/BackgroundJob/ExpireCredentials.php
index d8201a86..a0b43144 100644
--- a/lib/BackgroundJob/ExpireCredentials.php
+++ b/lib/BackgroundJob/ExpireCredentials.php
@@ -42,7 +42,11 @@ class ExpireCredentials extends TimedJob {
      * @param IConfig $config
      * @param CronService $cronService
      */
-	public function __construct(ITimeFactory $timeFactory, protected IConfig $config, private CronService $cronService) {
+	public function __construct(
+		ITimeFactory $timeFactory,
+		protected IConfig $config,
+		private CronService $cronService,
+	) {
         parent::__construct($timeFactory);
 
 		// Run once per minute
diff --git a/lib/Controller/AdminController.php b/lib/Controller/AdminController.php
index 16425f51..6ea16b0d 100644
--- a/lib/Controller/AdminController.php
+++ b/lib/Controller/AdminController.php
@@ -29,24 +29,18 @@ use OCP\IUserManager;
 
 class AdminController extends ApiController {
 	private $userId;
-	private $vaultService;
-	private $credentialService;
-	private $fileService;
-	private $revisionService;
-	private $deleteVaultRequestService;
-	private $config;
-	private $userManager;
 
-	public function __construct($AppName,
-								IRequest $request,
-								$UserId,
-								VaultService $vaultService,
-								CredentialService $credentialService,
-								FileService $fileService,
-								CredentialRevisionService $revisionService,
-								DeleteVaultRequestService $deleteVaultRequestService,
-								IConfig $config,
-								IUserManager $userManager
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$UserId,
+		private VaultService $vaultService,
+		private CredentialService $credentialService,
+		private FileService $fileService,
+		private CredentialRevisionService $revisionService,
+		private DeleteVaultRequestService $deleteVaultRequestService,
+		private IConfig $config,
+		private IUserManager $userManager,
 	) {
 		parent::__construct(
 			$AppName,
@@ -55,14 +49,7 @@ class AdminController extends ApiController {
 			'Authorization, Content-Type, Accept',
 			86400);
 		$this->userId = $UserId;
-		$this->vaultService = $vaultService;
-		$this->credentialService = $credentialService;
-		$this->fileService = $fileService;
-		$this->revisionService = $revisionService;
-		$this->deleteVaultRequestService = $deleteVaultRequestService;
 
-		$this->config = $config;
-		$this->userManager = $userManager;
 	}
 
 
diff --git a/lib/Controller/CredentialController.php b/lib/Controller/CredentialController.php
index cdb23bcb..9cfefa8a 100644
--- a/lib/Controller/CredentialController.php
+++ b/lib/Controller/CredentialController.php
@@ -29,21 +29,16 @@ use OCP\IRequest;
 
 class CredentialController extends ApiController {
 	private $userId;
-	private $credentialService;
-	private $activityService;
-	private $credentialRevisionService;
-	private $sharingService;
-	private $settings;
-
-	public function __construct($AppName,
-	                            IRequest $request,
-								$userId,
-		                        CredentialService $credentialService,
-		                        ActivityService $activityService,
-		                        CredentialRevisionService $credentialRevisionService,
-		                        ShareService $sharingService,
-		                        SettingsService $settings
 
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$userId,
+		private CredentialService $credentialService,
+		private ActivityService $activityService,
+		private CredentialRevisionService $credentialRevisionService,
+		private ShareService $sharingService,
+		private SettingsService $settings,
 	) {
 		parent::__construct(
 			$AppName,
@@ -52,11 +47,6 @@ class CredentialController extends ApiController {
 			'Authorization, Content-Type, Accept',
 			86400);
 		$this->userId = $userId;
-		$this->credentialService = $credentialService;
-		$this->activityService = $activityService;
-		$this->credentialRevisionService = $credentialRevisionService;
-		$this->sharingService = $sharingService;
-		$this->settings = $settings;
 	}
 
 
diff --git a/lib/Controller/FileController.php b/lib/Controller/FileController.php
index 0222b54e..8655fba0 100644
--- a/lib/Controller/FileController.php
+++ b/lib/Controller/FileController.php
@@ -19,14 +19,14 @@ use Psr\Log\LoggerInterface;
 
 class FileController extends ApiController {
 	private $userId;
-	private $fileService;
-	private $logger;
 
-	public function __construct($AppName,
-	                            IRequest $request,
-								$UserId,
-		                        FileService $fileService,
-		                        LoggerInterface $logger) {
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$UserId,
+		private FileService $fileService,
+		private LoggerInterface $logger,
+	) {
 		parent::__construct(
 			$AppName,
 			$request,
@@ -34,8 +34,6 @@ class FileController extends ApiController {
 			'Authorization, Content-Type, Accept',
 			86400);
 		$this->userId = $UserId;
-		$this->fileService = $fileService;
-		$this->logger = $logger;
 	}
 
 
diff --git a/lib/Controller/IconController.php b/lib/Controller/IconController.php
index 0bf9d221..0a9c23e5 100644
--- a/lib/Controller/IconController.php
+++ b/lib/Controller/IconController.php
@@ -25,17 +25,15 @@ use OCP\IURLGenerator;
 
 class IconController extends ApiController {
 	private $userId;
-	private $credentialService;
-	private $am;
-	private $urlGenerator;
 	const ICON_CACHE_OFFSET = 2592000;  // 3600 * 24 * 30
 
-	public function __construct($AppName,
-	                            IRequest $request,
-	                            $UserId,
-	                            CredentialService $credentialService,
-	                            AppManager $am,
-	                            IURLGenerator $urlGenerator
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$UserId,
+		private CredentialService $credentialService,
+		private AppManager $am,
+		private IURLGenerator $urlGenerator,
 	) {
 		parent::__construct(
 			$AppName,
@@ -44,9 +42,6 @@ class IconController extends ApiController {
 			'Authorization, Content-Type, Accept',
 			86400);
 		$this->userId = $UserId;
-		$this->credentialService = $credentialService;
-		$this->am = $am;
-		$this->urlGenerator = $urlGenerator;
 
 	}
 
diff --git a/lib/Controller/InternalController.php b/lib/Controller/InternalController.php
index 44a8dc04..f06f4939 100644
--- a/lib/Controller/InternalController.php
+++ b/lib/Controller/InternalController.php
@@ -21,18 +21,15 @@ use OCP\Notification\IManager;
 
 class InternalController extends ApiController {
 	private $userId;
-	private $credentialService;
-	private $config;
-	private $manager;
-	private $appManager;
 
-	public function __construct($AppName,
-	                            IRequest $request,
-	                            $UserId,
-	                            CredentialService $credentialService,
-	                            IConfig $config,
-	                            IManager $IManager,
-	                            IAppManager $appManager
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$UserId,
+		private CredentialService $credentialService,
+		private IConfig $config,
+		private IManager $manager,
+		private IAppManager $appManager,
 	) {
 		parent::__construct(
 			$AppName,
@@ -41,10 +38,6 @@ class InternalController extends ApiController {
 			'Authorization, Content-Type, Accept',
 			86400);
 		$this->userId = $UserId;
-		$this->credentialService = $credentialService;
-		$this->config = $config;
-		$this->manager = $IManager;
-		$this->appManager = $appManager;
 	}
 
 	/**
diff --git a/lib/Controller/SettingsController.php b/lib/Controller/SettingsController.php
index 875a105d..1c97b882 100644
--- a/lib/Controller/SettingsController.php
+++ b/lib/Controller/SettingsController.php
@@ -19,24 +19,20 @@ use OCP\IL10N;
 use OCP\IRequest;
 
 class SettingsController extends ApiController {
-	private $userId;
-	private $settings;
 
 	public function __construct(
 		$AppName,
 		IRequest $request,
-		$userId,
-		SettingsService $settings,
-		IL10N $l) {
+		private $userId,
+		private SettingsService $settings,
+		private IL10N $l,
+	) {
 		parent::__construct(
 			$AppName,
 			$request,
 			'GET, POST, DELETE, PUT, PATCH, OPTIONS',
 			'Authorization, Content-Type, Accept',
 			86400);
-		$this->settings = $settings;
-		$this->l = $l;
-		$this->userId = $userId;
 	}
 
 	/**
diff --git a/lib/Controller/ShareController.php b/lib/Controller/ShareController.php
index 5c5fd725..91883249 100644
--- a/lib/Controller/ShareController.php
+++ b/lib/Controller/ShareController.php
@@ -36,33 +36,24 @@ use OCP\Notification\IManager;
 
 class ShareController extends ApiController {
 	private $userId;
-	private $activityService;
-	private $groupManager;
-	private $userManager;
-	private $vaultService;
-	private $shareService;
-	private $credentialService;
-	private $notificationService;
-	private $fileService;
-	private $settings;
-	private $manager;
 
 	private $limit = 50;
 	private $offset = 0;
 
-	public function __construct($AppName,
-	                            IRequest $request,
-	                            $UserId,
-	                            IGroupManager $groupManager,
-	                            IUserManager $userManager,
-	                            ActivityService $activityService,
-	                            VaultService $vaultService,
-	                            ShareService $shareService,
-	                            CredentialService $credentialService,
-	                            NotificationService $notificationService,
-	                            FileService $fileService,
-	                            SettingsService $config,
-	                            IManager $IManager
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$UserId,
+		private IGroupManager $groupManager,
+		private IUserManager $userManager,
+		private ActivityService $activityService,
+		private VaultService $vaultService,
+		private ShareService $shareService,
+		private CredentialService $credentialService,
+		private NotificationService $notificationService,
+		private FileService $fileService,
+		private SettingsService $settings,
+		private IManager $manager,
 	) {
 		parent::__construct(
 			$AppName,
@@ -72,16 +63,6 @@ class ShareController extends ApiController {
 			86400);
 
 		$this->userId = $UserId;
-		$this->userManager = $userManager;
-		$this->groupManager = $groupManager;
-		$this->activityService = $activityService;
-		$this->vaultService = $vaultService;
-		$this->shareService = $shareService;
-		$this->credentialService = $credentialService;
-		$this->notificationService = $notificationService;
-		$this->fileService = $fileService;
-		$this->settings = $config;
-		$this->manager = $IManager;
 	}
 
 
diff --git a/lib/Controller/TranslationController.php b/lib/Controller/TranslationController.php
index 4b6fc6a8..40533bd4 100644
--- a/lib/Controller/TranslationController.php
+++ b/lib/Controller/TranslationController.php
@@ -17,11 +17,11 @@ use OCP\IL10N;
 use OCP\IRequest;
 
 class TranslationController extends ApiController {
-	private $trans;
 
-	public function __construct($AppName,
-								IRequest $request,
-								IL10N $trans
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		private IL10N $trans,
 	) {
 		parent::__construct(
 			$AppName,
@@ -29,7 +29,6 @@ class TranslationController extends ApiController {
 			'GET, POST, DELETE, PUT, PATCH, OPTIONS',
 			'Authorization, Content-Type, Accept',
 			86400);
-		$this->trans = $trans;
 	}
 
 
diff --git a/lib/Controller/VaultController.php b/lib/Controller/VaultController.php
index 25e4c992..f29e4914 100644
--- a/lib/Controller/VaultController.php
+++ b/lib/Controller/VaultController.php
@@ -26,22 +26,18 @@ use Psr\Log\LoggerInterface;
 
 class VaultController extends ApiController {
 	private $userId;
-	private $vaultService;
-	private $credentialService;
-	private $settings;
-	private $fileService;
-	private $logger;
-	private $deleteVaultRequestService;
 
-	public function __construct($AppName,
-	                            IRequest $request,
-								$UserId,
-		                        VaultService $vaultService,
-		                        CredentialService $credentialService,
-		                        DeleteVaultRequestService $deleteVaultRequestService,
-		                        SettingsService $settings,
-		                        FileService $fileService,
-		                        LoggerInterface $logger) {
+	public function __construct(
+		$AppName,
+		IRequest $request,
+		$UserId,
+		private VaultService $vaultService,
+		private CredentialService $credentialService,
+		private DeleteVaultRequestService $deleteVaultRequestService,
+		private SettingsService $settings,
+		private FileService $fileService,
+		private LoggerInterface $logger,
+	) {
 		parent::__construct(
 			$AppName,
 			$request,
@@ -49,12 +45,6 @@ class VaultController extends ApiController {
 			'Authorization, Content-Type, Accept',
 			86400);
 		$this->userId = $UserId;
-		$this->vaultService = $vaultService;
-		$this->credentialService = $credentialService;
-		$this->deleteVaultRequestService = $deleteVaultRequestService;
-		$this->settings = $settings;
-		$this->fileService = $fileService;
-		$this->logger = $logger;
 	}
 
 	/**
diff --git a/lib/Db/CredentialMapper.php b/lib/Db/CredentialMapper.php
index e1455842..25787419 100644
--- a/lib/Db/CredentialMapper.php
+++ b/lib/Db/CredentialMapper.php
@@ -33,11 +33,12 @@ use OCP\IDBConnection;
 
 class CredentialMapper extends QBMapper {
 	const TABLE_NAME = 'passman_credentials';
-	private Utils $utils;
 
-	public function __construct(IDBConnection $db, Utils $utils) {
+	public function __construct(
+		IDBConnection $db,
+		private Utils $utils,
+	) {
 		parent::__construct($db, self::TABLE_NAME);
-		$this->utils = $utils;
 	}
 
 
diff --git a/lib/Db/FileMapper.php b/lib/Db/FileMapper.php
index bb590163..6e33a3ed 100644
--- a/lib/Db/FileMapper.php
+++ b/lib/Db/FileMapper.php
@@ -34,11 +34,12 @@ use OCP\IDBConnection;
 
 class FileMapper extends QBMapper {
 	const TABLE_NAME = 'passman_files';
-	private Utils $utils;
 
-	public function __construct(IDBConnection $db, Utils $utils) {
+	public function __construct(
+		IDBConnection $db,
+		private Utils $utils,
+	) {
 		parent::__construct($db, self::TABLE_NAME);
-		$this->utils = $utils;
 	}
 
 
diff --git a/lib/Db/VaultMapper.php b/lib/Db/VaultMapper.php
index 37fb942c..e35356d4 100644
--- a/lib/Db/VaultMapper.php
+++ b/lib/Db/VaultMapper.php
@@ -33,11 +33,12 @@ use OCP\IDBConnection;
 
 class VaultMapper extends QBMapper {
 	const TABLE_NAME = 'passman_vaults';
-	private Utils $utils;
 
-	public function __construct(IDBConnection $db, Utils $utils) {
+	public function __construct(
+		IDBConnection $db,
+		private Utils $utils,
+	) {
 		parent::__construct($db, self::TABLE_NAME);
-		$this->utils = $utils;
 	}
 
 
diff --git a/lib/Middleware/APIMiddleware.php b/lib/Middleware/APIMiddleware.php
index d099868f..92f3cc17 100644
--- a/lib/Middleware/APIMiddleware.php
+++ b/lib/Middleware/APIMiddleware.php
@@ -9,10 +9,9 @@ use OCP\IRequest;
 
 class APIMiddleware extends Middleware {
 
-	private $request;
-
-	public function __construct(IRequest $request) {
-		$this->request = $request;
+	public function __construct(
+		private IRequest $request,
+	) {
 	}
 
 	public function afterController($controller, $methodName, Response $response) {
diff --git a/lib/Migration/ServerSideEncryption.php b/lib/Migration/ServerSideEncryption.php
index a41e7c0c..c257b851 100644
--- a/lib/Migration/ServerSideEncryption.php
+++ b/lib/Migration/ServerSideEncryption.php
@@ -39,35 +39,18 @@ use Psr\Log\LoggerInterface;
 
 class ServerSideEncryption implements IRepairStep {
 
-	/** @var EncryptService */
-	private $encryptService;
-
-	/** @var IDBConnection */
-	private $db;
-
 	/** @var string */
 	private $installedVersion;
 
-	/** @var LoggerInterface */
-	private $logger;
-
-	/** @var CredentialService */
-	private $credentialService;
-
-	/** @var  CredentialRevisionService */
-	private $revisionService;
-
-	/** @var FileService */
-	private $fileService;
-
-	public function __construct(EncryptService $encryptService, IDBConnection $db, LoggerInterface $logger, CredentialService $credentialService, CredentialRevisionService $revisionService,
-	                            FileService $fileService, IConfig $config) {
-		$this->encryptService = $encryptService;
-		$this->db = $db;
-		$this->logger = $logger;
-		$this->credentialService = $credentialService;
-		$this->revisionService = $revisionService;
-		$this->fileService = $fileService;
+	public function __construct(
+		private EncryptService $encryptService,
+		private IDBConnection $db,
+		private LoggerInterface $logger,
+		private CredentialService $credentialService,
+		private CredentialRevisionService $revisionService,
+		private FileService $fileService,
+		IConfig $config,
+	) {
 		$this->installedVersion = $config->getAppValue('passman', 'installed_version');
 	}
 
diff --git a/lib/Migration/Version02031335Date20211001122343.php b/lib/Migration/Version02031335Date20211001122343.php
index 4d738fd5..78aad260 100644
--- a/lib/Migration/Version02031335Date20211001122343.php
+++ b/lib/Migration/Version02031335Date20211001122343.php
@@ -15,9 +15,6 @@ use OCP\Migration\SimpleMigrationStep;
  */
 class Version02031335Date20211001122343 extends SimpleMigrationStep {
 
-	/** @var IDBConnection */
-	protected $connection;
-
 	protected $oldColumn = 'favicon';
 	protected $newColumn = 'icon';
 	protected $dataMigrationRequired = false;
@@ -25,8 +22,9 @@ class Version02031335Date20211001122343 extends SimpleMigrationStep {
 	/**
 	 * @param IDBConnection $connection
 	 */
-	public function __construct(IDBConnection $connection) {
-		$this->connection = $connection;
+	public function __construct(
+		protected IDBConnection $connection,
+	) {
 	}
 
 	/**
diff --git a/lib/Notifier.php b/lib/Notifier.php
index 38b3a8a8..d5beddec 100644
--- a/lib/Notifier.php
+++ b/lib/Notifier.php
@@ -29,10 +29,9 @@ use OCP\Notification\INotifier;
 
 class Notifier implements INotifier {
 
-	protected IFactory $factory;
-
-	public function __construct(IFactory $factory) {
-		$this->factory = $factory;
+	public function __construct(
+		protected IFactory $factory,
+	) {
 	}
 
 	/**
diff --git a/lib/Search/Provider.php b/lib/Search/Provider.php
index de98c4bc..cac452e3 100644
--- a/lib/Search/Provider.php
+++ b/lib/Search/Provider.php
@@ -42,16 +42,13 @@ use OCP\Search\SearchResultEntry;
 
 class Provider implements IProvider {
 
-	private IL10N $l10n;
-	private IURLGenerator $urlGenerator;
-	private IDBConnection $db;
-	private SettingsService $settings;
+	public function __construct(
+		private IL10N $l10n,
+		private IURLGenerator $urlGenerator,
+		private IDBConnection $db,
+		private SettingsService $settings,
+	) {
 
-	public function __construct(IL10N $l10n, IURLGenerator $urlGenerator, IDBConnection $db, SettingsService $settings) {
-		$this->l10n = $l10n;
-		$this->urlGenerator = $urlGenerator;
-		$this->db = $db;
-		$this->settings = $settings;
 	}
 
 	public function getId(): string {
diff --git a/lib/Service/CredentialRevisionService.php b/lib/Service/CredentialRevisionService.php
index 035c4dd1..83072bb6 100644
--- a/lib/Service/CredentialRevisionService.php
+++ b/lib/Service/CredentialRevisionService.php
@@ -33,13 +33,13 @@ use OCP\IConfig;
 
 class CredentialRevisionService {
 
-	private CredentialRevisionMapper $credentialRevisionMapper;
-	private EncryptService $encryptService;
 	private $server_key;
 
-	public function __construct(CredentialRevisionMapper $credentialRevisionMapper, EncryptService $encryptService, IConfig $config) {
-		$this->credentialRevisionMapper = $credentialRevisionMapper;
-		$this->encryptService = $encryptService;
+	public function __construct(
+		private CredentialRevisionMapper $credentialRevisionMapper,
+		private EncryptService $encryptService,
+		IConfig $config,
+	) {
 		$this->server_key = $config->getSystemValue('passwordsalt', '');
 	}
 
diff --git a/lib/Service/CredentialService.php b/lib/Service/CredentialService.php
index feb6c773..5b902b77 100644
--- a/lib/Service/CredentialService.php
+++ b/lib/Service/CredentialService.php
@@ -36,27 +36,17 @@ use OCP\IConfig;
 
 class CredentialService {
 
-	private CredentialMapper $credentialMapper;
-	private SharingACLMapper $sharingACL;
-	private ActivityService $activityService;
-	private ShareService $shareService;
-	private EncryptService $encryptService;
-	private CredentialRevisionService $credentialRevisionService;
 	private $server_key;
 
-	public function __construct(CredentialMapper          $credentialMapper,
-	                            SharingACLMapper          $sharingACL,
-	                            ActivityService           $activityService,
-	                            ShareService              $shareService,
-	                            EncryptService            $encryptService,
-	                            CredentialRevisionService $credentialRevisionService,
-	                            IConfig                   $config) {
-		$this->credentialMapper = $credentialMapper;
-		$this->sharingACL = $sharingACL;
-		$this->activityService = $activityService;
-		$this->shareService = $shareService;
-		$this->encryptService = $encryptService;
-		$this->credentialRevisionService = $credentialRevisionService;
+	public function __construct(
+		private CredentialMapper          $credentialMapper,
+		private SharingACLMapper          $sharingACL,
+		private ActivityService           $activityService,
+		private ShareService              $shareService,
+		private EncryptService            $encryptService,
+		private CredentialRevisionService $credentialRevisionService,
+		IConfig                           $config,
+	) {
 		$this->server_key = $config->getSystemValue('passwordsalt', '');
 	}
 
diff --git a/lib/Service/CronService.php b/lib/Service/CronService.php
index b820b9ad..058e961b 100644
--- a/lib/Service/CronService.php
+++ b/lib/Service/CronService.php
@@ -32,20 +32,14 @@ use Psr\Log\LoggerInterface;
 
 class CronService {
 
-	private CredentialService $credentialService;
-	private LoggerInterface $logger;
-	private Utils $utils;
-	private NotificationService $notificationService;
-	private ActivityService $activityService;
-	private IDBConnection $db;
-
-	public function __construct(CredentialService $credentialService, LoggerInterface $logger, Utils $utils, NotificationService $notificationService, ActivityService $activityService, IDBConnection $db) {
-		$this->credentialService = $credentialService;
-		$this->logger = $logger;
-		$this->utils = $utils;
-		$this->notificationService = $notificationService;
-		$this->activityService = $activityService;
-		$this->db = $db;
+	public function __construct(
+		private CredentialService   $credentialService,
+		private LoggerInterface     $logger,
+		private Utils               $utils,
+		private NotificationService $notificationService,
+		private ActivityService     $activityService,
+		private IDBConnection       $db,
+	) {
 	}
 
 	public function expireCredentials() {
diff --git a/lib/Service/DeleteVaultRequestService.php b/lib/Service/DeleteVaultRequestService.php
index 872111c5..2e98c6f0 100644
--- a/lib/Service/DeleteVaultRequestService.php
+++ b/lib/Service/DeleteVaultRequestService.php
@@ -30,10 +30,9 @@ use OCP\AppFramework\Db\Entity;
 
 class DeleteVaultRequestService {
 
-	private DeleteVaultRequestMapper $deleteVaultRequestMapper;
-
-	public function __construct(DeleteVaultRequestMapper $deleteVaultRequestMapper) {
-		$this->deleteVaultRequestMapper = $deleteVaultRequestMapper;
+	public function __construct(
+		private DeleteVaultRequestMapper $deleteVaultRequestMapper,
+	) {
 	}
 
 	/**
diff --git a/lib/Service/FileService.php b/lib/Service/FileService.php
index e411abc5..5a8e4bb7 100644
--- a/lib/Service/FileService.php
+++ b/lib/Service/FileService.php
@@ -34,13 +34,13 @@ use OCP\IConfig;
 
 class FileService {
 
-	private FileMapper $fileMapper;
-	private EncryptService $encryptService;
 	private $server_key;
 
-	public function __construct(FileMapper $fileMapper, EncryptService $encryptService, IConfig $config) {
-		$this->fileMapper = $fileMapper;
-		$this->encryptService = $encryptService;
+	public function __construct(
+		private FileMapper $fileMapper,
+		private EncryptService $encryptService,
+		IConfig $config,
+	) {
 		$this->server_key = $config->getSystemValue('passwordsalt', '');
 	}
 
diff --git a/lib/Service/NotificationService.php b/lib/Service/NotificationService.php
index 5b0d2d8d..debbe2ca 100644
--- a/lib/Service/NotificationService.php
+++ b/lib/Service/NotificationService.php
@@ -28,13 +28,10 @@ use OCP\IURLGenerator;
 use OCP\Notification\IManager;
 
 class NotificationService {
-
-	private IManager $manager;
-	private IURLGenerator $urlGenerator;
-
-	public function __construct(IManager $IManager, IURLGenerator $urlGenerator) {
-		$this->manager = $IManager;
-		$this->urlGenerator = $urlGenerator;
+	public function __construct(
+		private IManager $manager,
+		private IURLGenerator $urlGenerator,
+	) {
 	}
 
 	function credentialExpiredNotification($credential) {
diff --git a/lib/Service/SettingsService.php b/lib/Service/SettingsService.php
index a87ff9ba..fa20d20c 100644
--- a/lib/Service/SettingsService.php
+++ b/lib/Service/SettingsService.php
@@ -29,7 +29,6 @@ use OCP\IConfig;
 class SettingsService {
 
 	private $userId;
-	private $config;
 	private $appName;
 	public $settings;
 
@@ -44,9 +43,12 @@ class SettingsService {
 		'settings_loaded'
 	];
 
-	public function __construct($UserId, IConfig $config, $AppName) {
+	public function __construct(
+		$UserId,
+		private IConfig $config,
+		$AppName,
+	) {
 		$this->userId = $UserId;
-		$this->config = $config;
 		$this->appName = $AppName;
 		$this->settings = [
 			'link_sharing_enabled' => intval($this->config->getAppValue('passman', 'link_sharing_enabled', 1)),
diff --git a/lib/Service/ShareService.php b/lib/Service/ShareService.php
index 2f1034e3..4db20777 100644
--- a/lib/Service/ShareService.php
+++ b/lib/Service/ShareService.php
@@ -38,28 +38,14 @@ use OCP\DB\IResult;
 use OCP\Notification\IManager;
 
 class ShareService {
-	private SharingACLMapper $sharingACL;
-	private ShareRequestMapper $shareRequest;
-	private CredentialMapper $credential;
-	private CredentialRevisionService $revisions;
-	private EncryptService $encryptService;
-	private IManager $IManager;
-
-
 	public function __construct(
-		SharingACLMapper $sharingACL,
-		ShareRequestMapper $shareRequest,
-		CredentialMapper $credentials,
-		CredentialRevisionService $revisions,
-		EncryptService $encryptService,
-		IManager $IManager
+		private SharingACLMapper $sharingACL,
+		private ShareRequestMapper $shareRequest,
+		private CredentialMapper $credential,
+		private CredentialRevisionService $revisions,
+		private EncryptService $encryptService,
+		private IManager $IManager,
 	) {
-		$this->sharingACL = $sharingACL;
-		$this->shareRequest = $shareRequest;
-		$this->credential = $credentials;
-		$this->revisions = $revisions;
-		$this->encryptService = $encryptService;
-		$this->IManager = $IManager;
 	}
 
 	/**
diff --git a/lib/Service/VaultService.php b/lib/Service/VaultService.php
index 4c0d5c20..7687d199 100644
--- a/lib/Service/VaultService.php
+++ b/lib/Service/VaultService.php
@@ -32,10 +32,10 @@ use OCP\AppFramework\Db\MultipleObjectsReturnedException;
 
 class VaultService {
 
-	private $vaultMapper;
+	public function __construct(
+		private VaultMapper $vaultMapper,
+	) {
 
-	public function __construct(VaultMapper $vaultMapper) {
-		$this->vaultMapper = $vaultMapper;
 	}
 
 	/**
diff --git a/lib/Settings/Admin.php b/lib/Settings/Admin.php
index 283619fe..ec7cb60a 100644
--- a/lib/Settings/Admin.php
+++ b/lib/Settings/Admin.php
@@ -33,22 +33,18 @@ use Psr\Log\LoggerInterface;
 
 class Admin implements ISettings {
 
-	protected IConfig $config;
-	private IL10N $l;
-	private IAppManager $appManager;
-	private LoggerInterface $logger;
-
 	/**
 	 * Admin constructor.
 	 * @param IConfig $config
 	 * @param IL10N $l
 	 * @param IAppManager $appManager
 	 */
-	public function __construct(IConfig $config, IL10N $l, IAppManager $appManager, LoggerInterface $logger) {
-		$this->config = $config;
-		$this->l = $l;
-		$this->appManager = $appManager;
-		$this->logger = $logger;
+	public function __construct(
+		protected IConfig $config,
+		private IL10N $l,
+		private IAppManager $appManager,
+		private LoggerInterface $logger,
+	) {
 	}
 
 	/**