You could just take simdjson, use its ondemand api and then navigate it with .at_path(_with_wildcard) (https://github.com/simdjson/simdjson/blob/master/doc/basi

You could just take simdjson, use its ondemand api and then navigate it with .at_path(_with_wildcard) (https://github.com/simdjson/simdjson/blob/master/doc/basics.md#jsonpath https://github.com/simdjson/simdjson/blob/master/doc/basics....) The whole tool would be like a few dozen lines of c++ and most likely be faster than this.