owl-admin/app/Providers/FileSystemServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\Storage;
use Illuminate\Filesystem\FilesystemAdapter;
use League\Flysystem\FilesystemOperator;
use League\Flysystem\Filesystem;
use League\Flysystem\Local\LocalFilesystemAdapter;

class FileSystemServiceProvider extends ServiceProvider
{
    public function boot()
    {
        Storage::extend('s3', function ($app, $config) {
            $adapter = new \League\Flysystem\AwsS3V3\AwsS3V3Adapter(
                new \Aws\S3\S3Client($config),
                $config['bucket'],
                $config['root'] ?? ''
            );

            return new class($adapter, $adapter, $config) extends FilesystemAdapter {
                protected $config;

                public function __construct(FilesystemOperator $driver, $adapter, array $config = [])
                {
                    parent::__construct($driver, $adapter, $config);
                    $this->config = $config;
                }

                public function url($path)
                {
                    return "/api/download?filename={$path}&bucket={$this->config['bucket']}";
                }
            };
        });
    }
}