diff --git a/README.md b/README.md
index aba0cc5..c9124d8 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-Checksum
+Printer
 ========
 
 **App for [Nextcloud](https://nextcloud.com) to print files using the CUPS/LPR printing ecosystem.**
diff --git a/appinfo/app.php b/appinfo/app.php
deleted file mode 100644
index f540efa..0000000
--- a/appinfo/app.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-/**
- * Load Javascript
- */
-
-use OCP\Util;
-
-$eventDispatcher = \OC::$server->getEventDispatcher();
-$eventDispatcher->addListener('OCA\Files::loadAdditionalScripts', function(){
-    Util::addScript('printer', 'printer.tabview' );
-    Util::addScript('printer', 'printer.plugin' );
-});
diff --git a/appinfo/info.xml b/appinfo/info.xml
index c576f0e..efd6878 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -28,6 +28,6 @@
     <bugs>https://github.com/e-alfred/nextcloud-printer/issues</bugs>
     <screenshot>https://github.com/e-alfred/nextcloud-printer/raw/master/screenshots/printer.gif</screenshot>
          <dependencies>
-        <nextcloud min-version="16" max-version="19" />
+        <nextcloud min-version="18" max-version="20" />
     </dependencies>
 </info>
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
new file mode 100644
index 0000000..d9aa391
--- /dev/null
+++ b/lib/AppInfo/Application.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (C) 2020 Richard Steinmetz <richard@steinmetz.cloud>
+ *
+ * @author Richard Steinmetz <richard@steinmetz.cloud>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\Printer\AppInfo;
+
+use OCA\Printer\Listener\LoadAdditionalScriptsListener;
+use OCA\Files\Event\LoadAdditionalScriptsEvent;
+use OCP\AppFramework\App;
+use OCP\AppFramework\Bootstrap\IBootContext;
+use OCP\AppFramework\Bootstrap\IBootstrap;
+use OCP\AppFramework\Bootstrap\IRegistrationContext;
+
+class Application extends App implements IBootstrap {
+    public const APP_ID = 'printer';
+
+    public function __construct(array $urlParams = []) {
+        parent::__construct(self::APP_ID, $urlParams);
+    }
+
+    public function register(IRegistrationContext $context): void {
+        // Load scripts for sidebar.
+        $context->registerEventListener(
+            LoadAdditionalScriptsEvent::class,
+            LoadAdditionalScriptsListener::class
+        );
+    }
+
+    public function boot(IBootContext $context): void {
+    }
+}
diff --git a/lib/Listener/LoadAdditionalScriptsListener.php b/lib/Listener/LoadAdditionalScriptsListener.php
new file mode 100644
index 0000000..12afac7
--- /dev/null
+++ b/lib/Listener/LoadAdditionalScriptsListener.php
@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (C) 2020 Richard Steinmetz <richard@steinmetz.cloud>
+ *
+ * @author Richard Steinmetz <richard@steinmetz.cloud>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\Printer\Listener;
+
+use OCA\Files\Event\LoadAdditionalScriptsEvent;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+use OCP\Util;
+
+class LoadAdditionalScriptsListener implements IEventListener {
+
+    public function handle(Event $event): void {
+        if (!($event instanceof LoadAdditionalScriptsEvent)) {
+            return;
+        }
+
+        Util::addScript('printer', 'printer.tabview');
+        Util::addScript('printer', 'printer.plugin');
+    }
+}