ext_localconf.php

<?php
defined('TYPO3_MODE') || die('Access denied.');

$GLOBALS['TYPO3_CONF_VARS']['FE']['eID_include']['t3monitoring'] = 'EXT:t3monitoring_client/Classes/Client.php';

$GLOBALS['TYPO3_CONF_VARS']['EXT']['t3monitoring_client']['provider'][] = 'T3Monitor\\T3monitoringClient\\Provider\\ServerInformationProvider';
$GLOBALS['TYPO3_CONF_VARS']['EXT']['t3monitoring_client']['provider'][] = 'T3Monitor\\T3monitoringClient\\Provider\\StatusReportProvider';
if (\TYPO3\CMS\Core\Utility\GeneralUtility::compat_version('7.0')) {
    $GLOBALS['TYPO3_CONF_VARS']['EXT']['t3monitoring_client']['provider'][] = 'T3Monitor\\T3monitoringClient\\Provider\\ComposerInformationProvider';
}

if (\TYPO3\CMS\Core\Utility\GeneralUtility::compat_version('7.0')) {
    $GLOBALS['TYPO3_CONF_VARS']['EXT']['t3monitoring_client']['provider'][] = 'T3Monitor\\T3monitoringClient\\Provider\\Extension7xProvider';
} else {
    $GLOBALS['TYPO3_CONF_VARS']['EXT']['t3monitoring_client']['provider'][] = 'T3Monitor\\T3monitoringClient\\Provider\\Extension6xProvider';
}

//$GLOBALS['TYPO3_CONF_VARS']['EXT']['t3monitoring_client']['provider'][] = 'T3Monitor\\T3monitoringClient\\Provider\\DummyDataProvider';

/** @var \TYPO3\CMS\Extbase\SignalSlot\Dispatcher $signalSlotDispatcher */
$signalSlotDispatcher = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Extbase\\SignalSlot\\Dispatcher');
$signalSlotDispatcher->connect(
    'TYPO3\\CMS\\Extensionmanager\\Utility\\InstallUtility',
    'afterExtensionInstall',
    'T3Monitor\\T3monitoringClient\\Slots\\ExtensionManagerSlot',
    'afterExtensionInstall'
);