Nushell actually pairs really well with JC, given that nushell has a "from json" operation. I recorded a video some time ago that shows a few nice features of Nushell and I bring up combining it with jc at around minute 19: https://www.youtube.com/watch?v=KF5dtxVsn1E
I had glanced at nunshell every now and then since it was initially announced, but it wasn't until a month or two before that I finally really "got" the point of it. I was trying to write a script to look through all of the files in a directory matching a certain pattern and pruning them to get rid of ones with modified timestamps within 10 minutes of each other. I remembered that nushell was supposed to be good for things like this, and after playing around with it for a minute, it finally "clicked" and now I'm hooked. Even when dealing with unstructured data, there's a lot of power in being able to convert it even into something as a list of records (sort of like structs) and process it from there.