[simiones]

Except when you need anything more complex than a string or an array of strings, when they become entirely useless.

There is not a single even slightly complex piece of software that uses exclusively env vars for configuration. Even bash or vim have config files, this is not some new idea.

[planede]

Hang on there, array of strings? Environment variables can't handle that either without quirks.

[simiones]

Oops, you're right, even that is too advanced...