It's cool that this stack works for the author, but if anyone is just starting out on their own one-person journey to build a product, I don't think they should follow the stack in this article. There are too many dependencies and too much complexity here. Kubernetes is overkill for 95% of applications, especially single founder SaaS businesses. Clickhouse may make sense for an analytics product but caring and feedin…
The problem is back ups. You've got to figure them out yourself. And there's a decent chance that you do it wrong leading to potentially catastrophic data loss.
IMHO, managed DB + S3 equivalent and then doing your own server is the sweet spot. You don't have to worry about data loss and it's still pretty cheap and flexible.