A new start

config/packages/framework.php

@@ -0,0 +1,18 @@
+<?php declare(strict_types=1);
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $containerConfigurator->extension('framework', [
+        'secret' => '%env(APP_SECRET)%',
+        'session' => true,
+    ]);
+    if ($containerConfigurator->env() === 'test') {
+        $containerConfigurator->extension('framework', [
+            'test' => true,
+            'session' => [
+                'storage_factory_id' => 'session.storage.factory.mock_file',
+            ],
+        ]);
+    }
+};