ことりんのネイティブ対応って↓のこと？
https://github.com/JetBrains/kotlin-native

Kotlin/Native is primarily designed to allow compilation for platforms
where virtual machines are not desirable or possible (such as iOS, embedded targets),
or where developer is willing to produce reasonably-sized self-contained
program without need to ship an additional execution runtime.

主にiOS向けのことなんじゃねーの？