Inspired by Samir Talwar's excellent implementation of FizzBuzz in Java inspired by Tom Stuart's excellent talk and blog post Programming With Nothing.
To compile and run tests use Maven.
ProgrammingWithNothing.kt contains implementation without types, i.e. using Any almost everywhere.
ProgrammingWithNothingAndTypes.kt contains unfinished implementation with exact types.
The reason it's unfinished is that specifying types turned out to be not a straightforward task.
Note that this is purely experimental code. All contributions are welcome.