First, that's a great stack and very well written/presented. One comment - he dismisses serverless as being overengineering . I think the correct POV, moreso for the single-man company, is that running a server to perform a task is the overengineered option. One can see from the snapshot the servers are indeed severely overprovisioned and underutilized. Building an api with api-gateway + lambda is less work than runn…
It's a niche, just like all solutions that aren't a single Unix process on a single Unix box. Even CGI scripts are a niche. You pick the niche that you know.