Have to agree with the previous person. Never saw a relevant project made from Groovy. Even with Beanshell I've included it a few times in other projects for basic scripting/customization within the app but groovy? Never in 15 years to now.

I think embedding and testing/plugins/DSLs really is the main use-case. It's a terrible fit for a CLI tool if you've got to wait for a JVM to boot up, especially in a world where people are now used to those kinds of things being instantaneous rust or go binaries.