Kotlin is indeed popular in it's specific domain (Android & Java). But the company is keen to position it as "write once run anywhere" space with a strong focus on multiplatform development.
1. The build system provides platform specific bindings for free (compared to the hassle of writing the core in C/C++ and then hand-writing platform specific bindings)
2. Keen focus on enabling single codebase for multiple platforms.
3. The company went so far, as to build a multi-platform UI Framework (Compose Multiplatform) that directly renders to Skia and runs on all mobile/desktop platforms. And even on browsers (with wasm)
https://kotlinlang.org/docs/multiplatform.html
https://www.jetbrains.com/lp/compose-multiplatform/
I find it odd, that such interesting a language / compiler finds little attention beyond its domain.
Is there any reasons for this that I'm missing?