Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Google Sign-In is a secure authentication system that reduces the burden of login for users, by enabling them to sign in with their Google account.
SimpleSAMLphp is an open-source PHP authentication application that provides support for SAML 2.0 as a Service Provider (SP) or Identity Provider (IdP).
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.