TYPO3 is a free and open source CMS with over 500,000 installations worldwide. Apache Solr for TYPO3 integrates the Apache Solr search engine with TYPO3 to improve its search capabilities. It indexes content, supports faceted search, file indexing, multi-site/language handling, spellchecking, autocomplete, and more. The project aims to provide an easy-to-use enterprise search solution for the TYPO3 community.