Author here. This is an experiment to run the Clojure compiler in a GraalVM native-image with Crema enabled. Crema is a new way to dynamically load JVM bytecode in a native-image using an interpreter.
I'm also the author of babashka, a native fast-starting scripting tool for Clojure. For me it's interesting to contrast both approaches and learn more about the pros/cons of each.