I'm also a bit confused by the terms used here. Is Replicated (https://www.replicated.com) an example of the kind of "control plane" you're referencing?
This is Ram, the author of the post. We have not unveiled our product yet. We are currently focussing on talking about the architecture that Infrastructure SaaS companies have to build and scale. The control plane and data plane are the critical parts of the architecture. We plan to post more blogs about different topics around these architecture patterns. I would love to chat 1:1 about what we are building if you are interested. My email is ram@thenile.dev
Terraform with a frontend? I honestly would like to know the elevator pitch here.