Apache is a free and open-source cross-platform web server software.
Open Graph is a protocol that is used to integrate any web page into the social graph.
TYPO3 is a free and open-source Web content management system written in PHP.
Umami is a self-hosted web analytics solution. It's goal is to provide a friendlier, privacy-focused alternative to Google Analytics and a free, open-sourced alternative to paid solutions.