Hello,
I state that I don't understand much, but I would like to enable RSS feeds.
Do you think such a thing could work?
`<?php
namespace Automad;
defined('AUTOMAD') or die('Direct access not permitted!');
class RSSFeed {
public function init()
{
	$this->dbFields = array(
		'rssFeedFile' => 'feed.rss',
		'rssFeedItemLimit' => 10,
		'rssFeedCopyright' => '',
		'rssFeedGenerator' => 'Automad - Flat-File CMS',
		'rssFeedTTL' => 60
	);
}

public function form()
{
	global $L;

	$rssFeedFile = $this->getValue('rssFeedFile');
	$rssFeedCopyright = $this->getValue('rssFeedCopyright');

	$html  = '<div class="alert alert-primary" role="alert">';
	$html .= $this->description();
	$html .= '</div>';

	$html .= '<div>';
	$html .= '<label>'.$L->get('rss-feed-url').'</label>';
	$html .= '<a href="'.AM_BASE_URL.$rssFeedFile.'">'.AM_BASE_URL.$rssFeedFile.'</a>';
	$html .= '<span class="tip">'.$L->get('rss-feed-url-tip').'</span>';
	$html .= '</div>';

	$html .= '<div>';
	$html .= '<label>'.$L->get('rss-feed-item-limit').'</label>';
	$html .= '<input id="jsrssFeedItemLimit" name="rssFeedItemLimit" type="number" title="Valid input range: -1 - 100" min="-1" max="100" value="'.$this->getValue('rssFeedItemLimit').'">';
	$html .= '<span class="tip">'.$L->get('rss-feed-item-limit-tip').'</span>';
	$html .= '</div>';

	$html .= '<div>';
	$html .= '<label>'.$L->get('rss-feed-copyright').'</label>';
	$html .= '<select id="jsrssFeedCopyright" name="rssFeedCopyright">';

	if (!empty($rssFeedCopyright)) {
		$html .= '<option value="'.$rssFeedCopyright.'">'.$rssFeedCopyright.'</option>';
	} else {
		$html .= '<option value="DISABLE">DISABLE</option>';
	}

	$html .= '<option value="CC BY 4.0">CC BY 4.0</option>';
	$html .= '<option value="CC BY-SA 4.0">CC BY-SA 4.0</option>';
	$html .= '<option value="CC BY-ND 4.0">CC BY-ND 4.0</option>';
	$html .= '<option value="CC BY-NC 4.0">CC BY-NC 4.0</option>';
	$html .= '<option value="CC BY-NC-SA 4.0">CC BY-NC-SA 4.0</option>';
	$html .= '<option value="CC BY-NC-ND 4.0">CC BY-NC-ND 4.0</option>';
	$html .= '<option value="DISABLE">DISABLE</option>';
	$html .= '</select>';

	if (!empty($rssFeedCopyright)) {
		$html .= '<span class="tip">'.$L->get('rss-feed-copyright-tip').$rssFeedCopyright.'</span>';
	} else {
		$html .= '<span class="tip">'.$L->get('rss-feed-copyright-tip').'DISABLE</span>';
	}
	$html .= '</div>';

	$html .= '<div>';
	$html .= '<label>'.$L->get('rss-feed-generator').'</label>';
	$html .= '<input id="jsrssFeedGenerator" name="rssFeedGenerator" pattern="[a-zA-ZÀ-ž0-9-_. !]+" title="Valid: !, -, _, ., a-z, A-Z, À-ž, 0-9" maxlength="50" type="text" value="'.$this->getValue('rssFeedGenerator').'">';
	$html .= '<span class="tip">'.$L->get('rss-feed-generator-tip').'</span>';
	$html .= '</div>';

	$html .= '<div>';
	$html .= '<label>'.$L->get('rss-feed-ttl').'</label>';
	$html .= '<input id="jsrssFeedTTL" name="rssFeedTTL" type="number" title="Valid input range: 0 - 1440" min="0" max="1440" value="'.$this->getValue('rssFeedTTL').'">';
	$html .= '<span class="tip">'.$L->get('rss-feed-ttl-tip').'</span>';
	$html .= '</div>';

	return $html;
}

private function createXML()
{
	global $site;
	global $pages;
	global $url;

	$rssFeedItemLimit = $this->getValue('rssFeedItemLimit');
	$rssFeedCopyright = $this->getValue('rssFeedCopyright');
	$rssFeedFile = $this->getValue('rssFeedFile');
	$rssFeedGenerator = $this->getValue('rssFeedGenerator');
	$rssFeedTTL = $this->getValue('rssFeedTTL');

	$list = $pages->getList(
		$pageNumber=1,
		$rssFeedItemLimit,
		$published=true,
		$static=true,
		$sticky=true,
		$draft=false,
		$scheduled=false
	);

	$xml = '<?xml version="1.0" encoding="UTF-8" ?>';
	$xml .= '<rss version="2.0">';
	$xml .= '<channel>';
	$xml .= '<title>'.$site->title().'</title>';
	$xml .= '<link>'.$site->url().'</link>';
	$xml .= '<description>'.$site->description().'</description>';
	$xml .= '<language>'.Theme::lang().'</language>';

	if (!empty($rssFeedCopyright) && ($rssFeedCopyright !== 'DISABLE')) {
		$xml .= '<copyright>'.$rssFeedCopyright.'</copyright>';
	}

	$xml .= '<lastBuildDate>'.date(DATE_RSS).'</lastBuildDate>';

	if (!empty($rssFeedGenerator)) {
		$xml .= '<generator>'.$rssFeedGenerator.'</generator>';
	}

	if (!empty($rssFeedTTL) && ($rssFeedTTL !== 0)) {
		$xml .= '<ttl>'.$rssFeedTTL.'</ttl>';
	}

	foreach ($list as $pageKey) {
		try {
			$page = new Page($pageKey);
			$xml .= '<item>';
			$xml .= '<title>'.$page->title().'</title>';
			$xml .= '<link>'.$page->permalink().'</link>';
			$xml .= '<description>'.Sanitize::html($page->contentBreak()).'</description>';

			if (!empty($page->category())) {
				$xml .= '<category>'.$page->category().'</category>';
			}

			$xml .= '<pubDate>'.$page->date(DATE_RSS).'</pubDate>';
			$xml .= '<guid isPermaLink="false">'.$page->uuid().'</guid>';
			$xml .= '</item>';
		} catch (Exception $e) {
		}
	}

	$xml .= '</channel></rss>';

	$doc = new DOMDocument();
	$doc->formatOutput = true;
	$doc->loadXML($xml);
	return $doc->save($this->workspace().$rssFeedFile);
}

public function install($position=0)
{
	parent::install($position);
	return $this->createXML();
}

public function post()
{
	parent::post();
	return $this->createXML();
}

public function afterPageCreate()
{
	$this->createXML();
}

public function afterPageModify()
{
	$this->createXML();
}

public function afterPageDelete()
{
	$this->createXML();
}

public function siteHead()
{
	global $site;

	$rssFeedFile = $this->getValue('rssFeedFile');

	return '<link rel="alternate" type="application/rss+xml" href="'.AM_BASE_URL.$rssFeedFile.'" title="'.$site->title().' - RSS Feed">'.PHP_EOL;
}

public function beforeAll()
{
	$rssFeedFile = $this->getValue('rssFeedFile');

	if ($this->webhook($rssFeedFile)) {
		header('Content-type: text/xml');
		$doc = new DOMDocument();

		libxml_disable_entity_loader(false);
		$doc->load($this->workspace().$rssFeedFile);
		libxml_disable_entity_loader(true);

		echo $doc->saveXML();

		exit(0);
	}
}
}
`