akaunting/app/Providers/Auth.php

<?php

namespace App\Providers;

use Illuminate\Contracts\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Access\Gate;
use Illuminate\Foundation\Support\Providers\AuthServiceProvider as Provider;

class Auth extends Provider
{
    /**
     * The policy mappings for the application.
     *
     * @var array
     */
    protected $policies = [
        //'App\Models\Model' => 'App\Policies\ModelPolicy',
    ];

    /**
     * Register any authentication / authorization services.
     *
     * @return void
     */
    public function boot()
    {
        $this->registerPolicies();

        // Register permissions to Laravel Gate
        app(Gate::class)->before(function (Authorizable $user, string $ability) {
            if (method_exists($user, 'hasPermission')) {
                return $user->hasPermission($ability) ?: null;
            }
        });
    }
}