public function plugins()
    {
        // plugins is a list of arrays, activate on a per plugin base
        if (is_array($this->plugins)) {
            return $this->plugins;
        }

        // for anything the evaluates to true, activate all plugins
        if ($this->plugins) {
            $plugins = apply_filters('all_plugins', get_plugins());

            return array_keys($plugins);
        }

        return [];
    }