private static function generateProjectKeywords($project, $lang): string
    {
        $keywords = [];
        $categories = $project->getCategories();
        $location = $lang === 'en' ? $project->getLocationEN() : $project->getLocationES();
 
        foreach ($categories as $cat) {
            $keywords[] = $lang === 'en' ? $cat->getNameEN() : $cat->getNameES();