[jgalt212]

Indeed, I was under the impression that Clojurescript was self-hosted (no Java dep) some time ago. Was this reversed?

Also, it's easy to say in retrospect leaning on the benevolence of Google would a bad idea. But the Clojure community are smart people, and I trust Closure was the least bad solution available at the time.

[jaccarmac]

It's optionally self-hosted, without support for Closure's full suite of optimizations (https://clojurescript.org/guides/self-hosting).