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

<?php

namespace App\Services\Media;

use Spatie\MediaLibrary\MediaCollections\Models\Media;
use Spatie\MediaLibrary\Support\PathGenerator\DefaultPathGenerator;

class PathGenerator extends DefaultPathGenerator
{

    /*
     * Get the path for the given media, relative to the root storage path.
     */
    /**
     * @param Media $media
     * @return string
     */
    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/';
    }

}