Locked into Java, yes. At some level it's unavoidable, you have to choose some kind of stack. And of course there are different kinds of ways to get out of lock

Locked into Java, yes. At some level it's unavoidable, you have to choose some kind of stack. And of course there are different kinds of ways to get out of lock-in. One of them is being able to convert to a common 'lower' language. I've not used Kotlin but I would be more likely to if I knew that avenue was practical.