ext_tables.php

<?php
defined('TYPO3_MODE') or die();


call_user_func(
    function () {
        if (TYPO3_MODE === 'BE') {
            \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addModule(
                'web',
                'func',
                '',
                '',
                [
                    'routeTarget' => \TYPO3\CMS\Func\Controller\PageFunctionsController::class . '::mainAction',
                    'access' => 'user,group',
                    'name' => 'web_func',
                    'icon' => 'EXT:func/Resources/Public/Icons/module-func.svg',
                    'labels' => 'LLL:EXT:func/Resources/Private/Language/locallang_mod_web_func.xlf'
                ]
            );
            \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addLLrefForTCAdescr(
                '_MOD_web_func',
                'EXT:func/Resources/Private/Language/locallang_csh_web_func.xlf'
            );
        }
    }
);