AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Apache is a free and open-source cross-platform web server software.
Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.