Compile speeds are a problem of the past. When you use Scala 2.12+ together with incremental compilation with modern Zinc-based compile server, compiling Scala

Compile speeds are a problem of the past. When you use Scala 2.12+ together with incremental compilation with modern Zinc-based compile server, compiling Scala after each change takes a low few seconds. Sometimes less than a second. And Dotty (Scala 3) shall improve compile times even further.