ext_localconf.php

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

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addPageTSConfig('<INCLUDE_TYPOSCRIPT:source="FILE:EXT:mia3_location/Configuration/TsConfig/PageTsConfig.ts">');

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
    'Mia3.' . $_EXTKEY,
    'Locations',
    array(
        'Location' => 'list, show, map, teaser, ajaxSearch',
    ),
    // non-cacheable actions
    array(
        'Location' => 'list, show, ajaxSearch',
    )
);

$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] = 'EXT:mia3_location/Classes/Hooks/TCEFetchCoordinates.php:Mia3\Mia3Location\Hooks\TCEFetchCoordinates';
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['extbase']['commandControllers'][] = 'Mia3\Mia3Location\Command\LocationCommandController';

if (\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('realurl')) {
    $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/realurl/class.tx_realurl_autoconfgen.php']['extensionConfiguration']['location'] =
        'Mia3\Mia3Location\Hooks\RealUrlAutoConfiguration->addLocationConfig';
}

if (!is_array($GLOBALS['TYPO3_CONF_VARS']['EXT']['mia3_location']['templateLayouts'])) {
	$GLOBALS['TYPO3_CONF_VARS']['EXT']['mia3_location']['templateLayouts'] = array();
}