Yes. At the same time, the post missed an appropriate case for avoiding environment variables: when you want dynamic configuration for your services, where conf

Yes. At the same time, the post missed an appropriate case for avoiding environment variables: when you want dynamic configuration for your services, where configuration values can be changed at runtime without requiring a full redeploy of all the instances. Of course, that brings its own set of complexity which should be carefully weighed against requirements. Environment variables are still one of the simplest—and yes, most deterministic ways—to alter behavior of a program.