The real insight here isn't SQLite vs Postgres or VPS vs cloud – it's that for most indie/small SaaS, your bottleneck is never infrastructure. It's finding customers, keeping them, and shipping fast enough to stay relevant.
I've seen teams spend weeks setting up Kubernetes for an app that serves 50 requests per minute. The infrastructure complexity doesn't just cost money – it costs cognitive load that could go into product work.
The one thing I'd add to the article: this approach works brilliantly until you need a second engineer. The moment you're not the only person deploying, you need at least some reproducibility – even a simple Makefile and a documented deploy process goes a long way.