SpiceManagementSystem/app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\Event;
use App\Models\Product;
use App\Observers\ProductObserver;
use SocialiteProviders\Manager\SocialiteWasCalled;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     */
    public function register(): void
    {
        //
    }

    /**
     * Bootstrap any application services.
     */
    public function boot(): void
    {
        Product::observe(ProductObserver::class);

        Event::listen(function (SocialiteWasCalled $event) {
            $event->extendSocialite('nextcloud', \SocialiteProviders\Nextcloud\Provider::class);
        });
    }
}