ext_localconf.php

<?php

/*
 * This file is part of the "headless dev tools" Extension for TYPO3 CMS.
 *
 * For the full copyright and license information, please read the
 * LICENSE.md file that was distributed with this source code.
 */

use TYPO3\CMS\Core\Configuration\Features;
use TYPO3\CMS\Core\Utility\GeneralUtility;

defined('TYPO3') || die();

(static function () {
    $GLOBALS['TYPO3_CONF_VARS']['SYS']['fluid']['namespaces']['headlessDevTools'] = ['FriendsOfTYPO3\\HeadlessDevTools\\ViewHelpers'];

    $features = GeneralUtility::makeInstance(Features::class);

    if ($features->isFeatureEnabled('headless.storageProxy') &&
        class_exists(\IchHabRecht\Filefill\Resource\RemoteResourceCollection::class)) {
        $GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][\IchHabRecht\Filefill\Resource\RemoteResourceCollection::class]['className'] = \FriendsOfTYPO3\HeadlessDevTools\Xclass\RemoteResourceCollection::class;
    }
})();