at the end of the day, it was inevitable

app/autoload.php

@@ -0,0 +1,13 @@
+<?php
+
+use Doctrine\Common\Annotations\AnnotationRegistry;
+use Composer\Autoload\ClassLoader;
+
+/**
+ * @var ClassLoader $loader
+ */
+$loader = require __DIR__.'/../vendor/autoload.php';
+
+AnnotationRegistry::registerLoader([$loader, 'loadClass']);
+
+return $loader;