public function tags($tag)
    {
        return $this->model->where('is_published', 1)
            ->where('published_at', '<=', Carbon::now(config('app.timezone'))->format('Y-m-d H:i:s'))
            ->where('tags', 'LIKE', '%'.$tag.'%')->orderBy('created_at', 'desc')
            ->paginate(config('cms.pagination', 24));
    }