xcidar

1. in ext_localconf.php:
$TYPO3_CONF_VARS['FE']['eID_include']['bar'] = 'EXT:foo/lib/class.tx_foo.php';

2. in lib/class.foobar.php
<?php
    require_once(PATH_tslib.'class.tslib_pibase.php'); 
    $GLOBALS['TYPO3_DB']->store_lastBuiltQuery = 1;

    class tx_foobar extends tslib_pibase  {
        var $exclude = array('tt_news' => array(0));

xcidar

<?php
 
//Alias long namespaces to use shorter ones.
use \TYPO3\CMS\Core as Core;
use \TYPO3\CMS\Extbase\Utility as Utility;
use \TYPO3\CMS\Frontend as Frontend;
 
#$a = require_once(Core\Utility\ExtensionManagementUtility::extPath('np_viewer'));
/* INITIALIZE */
// Basic TSFE Setup - get all the Page data you may need.