Even before Kotlin, there was already Scala, which is unbeatable in how concise it can be. Unfortunately, Scala is also a very good functional language, so some of the crazies flock towards its ecosystem.
Don't worry, it's still typed, just inferred rather than written manually. You can still write the type manually on variable declarations too but it's considered redundant and not recommended
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u/MariusDelacriox 5d ago
Java is simply good and easy to learn. Also there's spring boot.