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Re:What's wrong with the default build tool for Scala by dullgiulio on Monday November 20, 2017 @08:16AM (#15739649)
I guess it makes sense to have your own build tool written in the language when you do not want to depend on the JVM (scala-native, for example). Then you don't have to hope maven/ant have their own native implementation.

As a plus you get to write your own DSL which might be more acceptable by the language user than that of another language or XML. Of course you might also invent a bad DSL; it's no easy task.

Re:What's wrong with the default build tool for Scala by aphexairlines on Monday November 20, 2017 @11:12AM (#15740944)
Your build tool being built on the JVM doesn't preclude it from building non-JVM targets. See for example bazel, buck, and pants building a bunch of different languages.