Configuration-by-full-language-by-default is IME a relatively big red flag for things like this. Much rather have a limited configuration language, possibly wit

Configuration-by-full-language-by-default is IME a relatively big red flag for things like this. Much rather have a limited configuration language, possibly with the option of going full bore if needed. Case in point, qbs is much more workable. Declarative-glue-predefined-stuff-together most of the way, JavaScript capability if needed.