diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 669435cb..ea0516d3 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -11,13 +11,51 @@
 use OCA\OpenCatalogi\Dashboard\CatalogWidget;
 use OCA\OpenCatalogi\Dashboard\UnpublishedPublicationsWidget;
 use OCA\OpenCatalogi\Dashboard\UnpublishedAttachmentsWidget;
+use OCP\IConfig;
 
+/**
+ * Main Application class for OpenCatalogi
+ */
 class Application extends App implements IBootstrap {
 	public const APP_ID = 'opencatalogi';
 
 	/** @psalm-suppress PossiblyUnusedMethod */
 	public function __construct() {
 		parent::__construct(self::APP_ID);
+
+		// Listen for the post installation event
+		$container = $this->getContainer();
+		$this->listen($container);
+	}
+
+	/**
+	 * Register event listeners
+	 */
+	private function listen($container): void {
+		$dispatcher = $container->getServer()->getEventDispatcher();
+		
+		// Listen for app installation
+		$dispatcher->addListener('app.register', function() use ($container) {
+			// Get app config to check if initial sync has been done
+			$config = $container->get(IConfig::class);
+			$initialSyncDone = $config->getAppValue(self::APP_ID, 'initial_sync_done', 'false');
+
+			// Only run if initial sync hasn't been done
+			if ($initialSyncDone === 'false') {
+				try {
+					// Get DirectoryService and run sync
+					$directoryService = $container->get(\OCA\OpenCatalogi\Service\DirectoryService::class);
+					$directoryService->doCronSync();
+
+					// Mark initial sync as done
+					$config->setAppValue(self::APP_ID, 'initial_sync_done', 'true');
+				} catch (\Exception $e) {
+					\OC::$server->getLogger()->error('Failed to run initial directory sync: ' . $e->getMessage(), [
+						'app' => self::APP_ID
+					]);
+				}
+			}
+		});
 	}
 
 	public function register(IRegistrationContext $context): void {