I agree with the author that "developer experience" is underrated in many programming languages or frameworks. But at least for me Ruby is by far not the number one in this area. While the syntax looks nice at a first sight, lack of type information and meta-programming can make working with this language tough. And there are other factors to pick a programming language, runtime performance for example. I guess that this and the absence of static typing are the reasons why Ruby fell out of fashion.
For me Kotlin is the sweet spot in programming language. You get a concise, readable language with world class tool support, static typing and the excellent performance of JVM + everything available in the Java ecosystem.
For me Kotlin is the sweet spot in programming language. You get a concise, readable language with world class tool support, static typing and the excellent performance of JVM + everything available in the Java ecosystem.