Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Svelte is a free and open-source front end compiler created by Rich Harris and maintained by the Svelte core team members.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.