Maybe. I just wanted to point out that there's Mill as a build tool for Scala: https://github.com/lihaoyi/mill

(by the Scala.js maintainer Li Haoyi)

The last time I gave Mill a shot, I couldn't find a way to authenticate into private artifactory repositories, which made it kind of a nonstarter. Do you know if this has since been added?

That, and it's one-way interop - calling Scala from Java is a deathly proposition.

For me this is the bigger problem. With Groovy and to a lesser extent Kotlin I can write code and ship a library and the consumers don't even know it's source is Kotlin. But it's much harder with Scala. Especially with Groovy you are really not leaving the Java ecosystem at all.

I think most of the perceived sbt slowness actually comes from dependency resolution and that's the same for Java and Kotlin

Ding