Bouncer ACL with fallback to relation's abilities

AppServiceProvider.php

<?php

namespace App\Providers;

use App\CustomClipboard;
use Illuminate\Cache\ArrayStore;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    public function boot(): void
    {
        // Make bouncer use the custom clipboard
        \Bouncer::setClipboard(new CustomClipboard(new ArrayStore));
    }
}

CustomClipboard.php

<?php

namespace App;

use App\Models\User;
use Illuminate\Database\Eloquent\Model;
use Silber\Bouncer\CachedClipboard;

class CustomClipboard extends CachedClipboard
{
    public function checkGetId(Model $authority, $ability, $model = null)
    {
        $found = parent::checkGetId($authority, $ability, $model);
        // If neither permitted or forbidden, fallback to the Customer's abilities
        if ($found === null && $authority instanceof User) {
            $found = $this->checkGetId($authority->customer, $ability, $model);
        }

        return $found;
    }
}