Email and other boring stuff.
As a nice Linux distro with Long Term Support and systemd .service files, which makes our app easier to deploy.
Load balancers, DB servers and app servers.
Storing code, pull requests, and deploying via GH deploy keys.
We use Express as our main router and do clever things with it to produce our AMP pages.
Our whole UI is a series of ractive components!
Sending welcome emails, chasing potential customers, providing customers with help, password reset emails, etc.
As a boring document oriented database with safe defaults.
HTTPS termination and active/passive load balancing