i have just realized this regarding the json licence:

"This license uses the Expat license as a base, but adds a clause mandating: “The Software shall be used for Good, not Evil.” This is a restriction on usage and thus conflicts with freedom 0. The restriction might be unenforcible, but we cannot presume that. Thus, the license is nonfree."

as per: https://directory.fsf.org/wiki/License:JSON

if json doesn't qualify for guix, then it means that stuff like the go ethereum client doesn't qualify.

context: i'm smartening up the go importer and go-ethereum's transitive closure of dozens of dependencies contains projects with json licence.

please advise,