Apache is a free and open-source cross-platform web server software.
Drupal is a free and open-source web content management framework.
Font Awesome is a font and icon toolkit based on CSS and Less.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.