dj_discourse_sso/ext_tables.php

<?php
if (defined('TYPO3_MODE') === false) {
    die('Access denied.');
}

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::registerPlugin('Jahnke.'.$_EXTKEY, 'Sso', 'Discourse SSO Authentication');

// \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile($_EXTKEY, 'Configuration/TypoScript', 'Discourse SSO');