you can use Kotlin in a Maven project as well (configuration here: https://void2unit.onrender.com/post/multimodule-maven-java-k...) or maybe your request is what triggered Jetbrains to develop Amper (https://blog.jetbrains.com/amper/)
AFAICT, the only viable avenue of Kotlin developemnt is by using an IDE (or maybe launch a Gradle deamon--but that'll be another rant).