Interesting tool. Thanks for the hint.
For darktable, or to be more precise, any application configuration, I go the complete opposite way:
I don’t backup configuration.
I have systems in place to recreate the configuration that is needed.
I can go from blank disk to production system with current project data available where it should be in about two hours. And yes, this is tested. Not everything in every application will be totally perfect, but it will work. And that is what I care about. The tuning for the pretty things is a constant game anyway.
For me this is a much more transparent approach.