Kotlin is easy to write because every idiom is available - but calling that a low barrier to entry reminds me of how articles used to suggest Perl as a beginner language because it was expressive. I actually consider it more complex than Scala as a language, because a lot of complex Scala idioms are just library code that you can click through to, whereas Kotlin tends to implement them as part of the language. I fear for the people who will have to maintain large enterprise Kotlin codebases in 5-10 years' time.
SBT is inexcusably awful (and so is ScalaTest, which is a lot of people's first exposure to the language), and you might be right about the zeitgeist having moved on, but it's a shame; it's honestly a significantly better language design.
SBT is inexcusably awful (and so is ScalaTest, which is a lot of people's first exposure to the language), and you might be right about the zeitgeist having moved on, but it's a shame; it's honestly a significantly better language design.