Title doesn't mean what many responses here seem to think it means. Most of the infrastructure recommended in the article is not "infra" in the sense of cloud-

Title doesn't mean what many responses here seem to think it means. Most of the infrastructure recommended in the article is not "infra" in the sense of cloud-hosted serverless Lambdas, etc, but rather best-in-breed software services or frameworks like envoy and Consul (which themselves require dedicated physical or cloud infra upon which to run). So, it's still arguing "buy vs build", but it isn't about cloud or serverless architecture.