depends on the "gain" I guess, switching to a new Kotlin-based framework would mean learning a new framework AND learning Kotlin for newcomers, whereas using good ol' Jetty with the JSR-whatever annotations means they just need to learn Kotlin and a couple of gotchas (ex: JSON libs, etc). Depends on the workplace I guess 😛

That’s kind of where I’m at with TornadoFX; learning both the framework and Kotlin. It’s daunting, but fortunately, not a work requirement. Just a self improvement thing.