Apache is a free and open-source cross-platform web server software.
BackboneJS is a JavaScript library that allows to develop and structure the client side applications that run in a web browser.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
PHP is a general-purpose scripting language used for web development.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.