Coincidentally, I recently looked at using CUE as a config file format, but it looked like it was too syntactically complex and unwieldy for them to edit compared to, say, TOML (which is warty-but-usable) or YAML (which is incredibly complex and has too many footguns).
Also, in order to work with it and to understand why their configs weren't working beyond simple error messages or worse, a config file that is technically correct but does something they don't want. To do that, if seems like they'd have to (a) understand unification, (b) be able to find and read the spec files, (c) overcome the syntactic similarity between data and schema, (d) be able to build mental models of why the data and schema combine to cause the symptoms they have. I decided to not use it for that purpose (yet).
I _want_ something like CUE, which is why I was looking at it, so...
Does anyone here have any real-world experience using it as a config and/or data format and ingestion engine for users that are _not_ complexity-loving CS-ophiles like myself who love nothing more than a cool new way of munging data?
CUE seems like the opposite: a typed data structure used to produce artifacts via a unification algorithm and feeding data to external tools to "render" those artifacts.
Better term, anyone?