cssd-back/app/Services/Media/PathGenerator.php

<?php

namespace App\Services\Media;

use Spatie\MediaLibrary\Models\Media;
use Spatie\MediaLibrary\PathGenerator\PathGenerator as BasePathGenerator;

class PathGenerator implements BasePathGenerator
{

    /*
     * Get the path for the given media, relative to the root storage path.
     */
    public function getPath(Media $media): string
    {
        return md5($media->id).'/';
    }

    /*
     * Get the path for conversions of the given media, relative to the root storage path.
     */
    public function getPathForConversions(Media $media): string
    {
        return $this->getPath($media).'conversions/';
    }

    /*
     * Get the path for responsive images of the given media, relative to the root storage path.
     */
    public function getPathForResponsiveImages(Media $media): string
    {
        return $this->getPath($media).'responsive-images/';
    }

}