Over in the community forum, I have finally gotten around to posting the prototype for my serialization library. The prototype supports serialization to and from JSON for 9 data types and to XML (my own schema) for the same 9 (listed below).
https://decibel.ni.com/content/docs/DOC-24015
Please take a look. I've made it a priority to finish out the data type support for the framework generally and for the JSON format specifically. I will need community help to tackle any other formats: the framework is designed to make a single pair of functions on a class handle any file format, but the part