diff --git a/appinfo/info.xml b/appinfo/info.xml
index 40beaca..fb5f44f 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -52,4 +52,7 @@ See [README] for more exhaustive information on features and potential misfeatur
 		<personal>OCA\Epubreader\Settings\Personal</personal>
 		<personal-section>OCA\Epubreader\Settings\PersonalSection</personal-section>
 	</settings>
+    <types>
+        <filesystem/>
+    </types>
 </info>
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 1c0d0c2..d257f31 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -14,32 +14,27 @@ namespace OCA\Epubreader\AppInfo;
 
 use OCA\Epubreader\Hooks;
 use OCP\AppFramework\App;
-use OCP\AppFramework\Bootstrap\IBootContext;
-use OCP\AppFramework\Bootstrap\IBootstrap;
-use OCP\AppFramework\Bootstrap\IRegistrationContext;
+use OCP\Files\IRootFolder;
+use OCP\IDBConnection;
 use OCP\Util;
-use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
-class Application extends App implements IBootstrap {
+class Application extends App {
 
 	public const APP_ID = 'epubreader';
 
 	public function __construct() {
 		parent::__construct(self::APP_ID);
 
-		Util::addscript(self::APP_ID, 'plugin');
-	}
+		/** @psalm-suppress DeprecatedInterface */
+		$container = $this->getContainer();
+		$hooks = new Hooks(
+			$container->get(IRootFolder::class),
+			$container->get(IDBConnection::class),
+		);
+		$hooks->register();
 
-	public function boot(IBootContext $context): void {
 		/** @psalm-suppress DeprecatedMethod */
 		Util::connectHook('\OCP\Config', 'js', 'OCA\Epubreader\Hooks', 'announce_settings');
-
-		$context->injectFn(function (EventDispatcherInterface $dispatcher) {
-			$dispatcher->addListener('OC\Files::preDelete', [Hooks::class, 'deleteFile']);
-			$dispatcher->addListener('OC\User::preDelete', [Hooks::class, 'deleteUser']);
-		});
-	}
-
-	public function register(IRegistrationContext $context): void {
+		Util::addscript(self::APP_ID, 'plugin');
 	}
 }
diff --git a/lib/Hooks.php b/lib/Hooks.php
index 3864fb3..b124ae6 100644
--- a/lib/Hooks.php
+++ b/lib/Hooks.php
@@ -11,13 +11,37 @@
 namespace OCA\Epubreader;
 
 use OCA\Epubreader\AppInfo\Application;
+use OCP\Files\IRootFolder;
+use OCP\Files\Node;
 use OCP\IConfig;
 use OCP\IDBConnection;
+use OCP\IUser;
 use OCP\IUserSession;
 use OCP\Server;
 
 class Hooks {
 
+	private IRootFolder $rootFolder;
+	private IDBConnection $dbConnection;
+
+	public function __construct(
+		IRootFolder $rootFolder,
+		IDBConnection $dbConnection,
+	) {
+		$this->rootFolder = $rootFolder;
+		$this->dbConnection = $dbConnection;
+	}
+
+	public function register(): void {
+		$this->rootFolder->listen('\OC\Files', 'preDelete', function (Node $node) {
+			$this->deleteFile($node->getId());
+		});
+
+		$this->rootFolder->listen('\OC\User', 'preDelete', function (IUser $user) {
+			$this->deleteUser($user->getUID());
+		});
+	}
+
 	public static function announce_settings(array $settings): void {
 		// Nextcloud encodes this as JSON, Owncloud does not (yet) (#75)
 		// TODO: remove this when Owncloud starts encoding oc_appconfig as JSON just like it already encodes most other properties
@@ -39,22 +63,22 @@ class Hooks {
 		}
 	}
 
-	protected static function deleteFile(IDBConnection $connection, int $fileId): void {
-		$queryBuilder = $connection->getQueryBuilder();
+	protected function deleteFile(int $fileId): void {
+		$queryBuilder = $this->dbConnection->getQueryBuilder();
 		$queryBuilder->delete('reader_bookmarks')->where('file_id = file_id')->setParameter('file_id', $fileId);
 		$queryBuilder->executeStatement();
 
-		$queryBuilder = $connection->getQueryBuilder();
+		$queryBuilder = $this->dbConnection->getQueryBuilder();
 		$queryBuilder->delete('reader_prefs')->where('file_id = file_id')->setParameter('file_id', $fileId);
 		$queryBuilder->executeStatement();
 	}
 
-	protected static function deleteUser(IDBConnection $connection, string $userId): void {
-		$queryBuilder = $connection->getQueryBuilder();
+	protected function deleteUser(string $userId): void {
+		$queryBuilder = $this->dbConnection->getQueryBuilder();
 		$queryBuilder->delete('reader_bookmarks')->where('user_id = user_id')->setParameter('user_id', $userId);
 		$queryBuilder->executeStatement();
 
-		$queryBuilder = $connection->getQueryBuilder();
+		$queryBuilder = $this->dbConnection->getQueryBuilder();
 		$queryBuilder->delete('reader_prefs')->where('user_id = user_id')->setParameter('user_id', $userId);
 		$queryBuilder->executeStatement();
 	}
diff --git "a/stubs/oc/Hooks\\Emitter.php" b/stubs/OC/Hooks/Emitter.php
similarity index 90%
rename from "stubs/oc/Hooks\\Emitter.php"
rename to stubs/OC/Hooks/Emitter.php
index bc5af2b..dd9cf31 100644
--- "a/stubs/oc/Hooks\\Emitter.php"
+++ b/stubs/OC/Hooks/Emitter.php
@@ -38,7 +38,6 @@ interface Emitter {
 	 * @param string $method
 	 * @param callable $callback
 	 * @return void
-	 * @deprecated 18.0.0 use \OCP\EventDispatcher\IEventDispatcher::addListener
 	 */
 	public function listen($scope, $method, callable $callback);
 
@@ -47,7 +46,6 @@ interface Emitter {
 	 * @param string $method optional
 	 * @param callable $callback optional
 	 * @return void
-	 * @deprecated 18.0.0 use \OCP\EventDispatcher\IEventDispatcher::removeListener
 	 */
 	public function removeListener($scope = null, $method = null, callable $callback = null);
 }