He has also refused to pay the severence owed to many employees he fired.
There is (yet another) a lawsuit ongoing against him.
Clearly a 4D chess playing genius.
Kotlin is used as the base of TeamCity's DSL, so I have to use it from time to time at work to configure build pipelines.
But I have never used it to build anything too complicated.
Seems like a massive step up from Java in terms of developer experience. But that's obviously just an opinion.
Hasklig.
Which is Source Code Pro with ligatures.
https://www.programmingfonts.org/#hasklig