core/src/Providers/CheckoutServiceProvider.php

<?php

namespace Modules\Core\Providers;

use Illuminate\Support\ServiceProvider;

class CheckoutServiceProvider extends ServiceProvider
{
    public function register(): void
    {
        $this->mergeConfigFrom(__DIR__ . '/../../config/legal.php', 'legal');
        $this->mergeConfigFrom(__DIR__ . '/../../config/checkout.php', 'checkout');
    }

    public function boot(): void
    {
        $this->publishes([
            __DIR__ . '/../../config/checkout.php' => config_path('checkout.php'),
        ], 'core-config');
    }
}