[kazinator]

There you're replacing a configuration language that is executable Scheme, with what seems to be a declarative language, and converting to indentation syntax. That's a two-variable change.

The original S-exp syntax doesn't have to be an executable program in which you use Scheme operators like cons* .

The indentation-based notation, likewise, can retain the property that it's executable Scheme and reveals operations like cons* to the user.