Babashka is another Hy-like alternative, but based on Clojure, and recently discussed on HN:

https://github.com/borkdude/babashka

https://news.ycombinator.com/item?id=24353476

Aside: another nice tool I recently discovered for working with JSON and YML, doing conversion and diffs (especially helpful for generated files):

https://github.com/homeport/dyff