I did, and they are very underrated. CUE in itself is brillantly designed: just enough power to be useful (conditionals, loops), but not enough to be dangerous

I did, and they are very underrated. CUE in itself is brillantly designed: just enough power to be useful (conditionals, loops), but not enough to be dangerous (not turing complete). The idea that you can define data types and data values with the same language makes for very ergonomic configuration files, and it is compatible with YAML and JSON, being able to export to and validate them. Any new tech is esoteric at first. When I started Python 20 years ago, there were no job offer for it in my country.