A lot of people are going to jump on the "he used k8s and he doesn't even work at Google scale!" part of this writeup, but I think it's a perfect demonstration of the concept of innovation tokens [1]. He admits in TFA that clickhouse was the only new piece of tech in his stack, and he was already familiar with k8s et al - so he's able to focus on actually building the products he wants. I could see somebody unfamiliar with k8s (but very familiar with all other pieces of tech in the system they want to build) being able to learn it as part of a side project, if it's the only new thing. Where the wheels come off is when you've never touched k8s, postgres, aws, rust, graphQL or vue - and you try to mash them all together in one ambitious project.