Create forms with TYPO3 Form Framework and store data in Hubspot.
Needs internal TYPO3 GmbH middleware as endpoint - currently used by typo3.org and typo3.com.
$GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['hubspot_forms']['baseUrl'] or getenv('APP_HUBSPOT_MIDDLEWARE_BASEURL')
$GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['hubspot_forms']['humweeekey'] or getenv('APP_HUBSPOT_FORM_FRAMEWORK_HUMWEEE_KEY')