Having only played a little with both (Kotlin and Nim), I enjoy Kotlin syntax but overall it feels as heavy as Java (need to setup an IDE for even getting started, choose and understand some package manager, slow compile times, etc.)
Nim feels as lightweight as Go, but with great syntax.
The main thing holding me back now is the lack of libraries, but it's definitely on my radar.
Nim feels as lightweight as Go, but with great syntax. The main thing holding me back now is the lack of libraries, but it's definitely on my radar.