What is their product exactly? It’s a server that is cheaper for some reason?
We're building racks over here! And all our software is open source.
Their product is a bunch of servers in a rack designed to run that open source software.
But you can run most of their software yourself.
It's a big ass computer (technically many computers in a rack) that gives you a cloud provider style API to manage on-premises infrastructure. Plug it in, connect to the web console or API, and provision yourself some sweet sweet virtual machines, disks, and VPCs.