we will fix this soon but wouldn't it require to run composer everytime someone adds a class?
What if we just load the classes this way:

```php
spl_autoload_register( function ( $className ) {
    $path = __DIR__ . '/src/' . str_replace( '\\', '/', $className ) . '.php';
    if ( file_exists( $path ) ) {
        include_once $path;
    }
} );
```
(and maybe there is already some functionality that implements exactly this?)