So you haven't heard of Kotlin Multiplatform.

Have heard of it, haven’t investigated it deeply. Looks to still have some of the less-great points of the Java ecosystem on the build side of things (gradle) which is a detractor for me.

Kotlin’s syntax is also weird/quirky in some ways.

> Kotlin’s syntax is also weird/quirky in some ways.

I'm curious to learn what you mean by this! :)

No terenary if and the elvis operator, for one. Stuff like that trips me up frequently when jumping between Kotlin and Swift/other C-likes.

If expression: https://kotlinlang.org/docs/control-flow.html#if-expression Elvis operator: https://kotlinlang.org/docs/null-safety.html#elvis-operator

Ah, I see. Tbh, I actually like the lack of ternary and elvis, they are nicely handled by if expression (as the other comment notes)

What are your experiences of using Kotlin for modern macOS/iOS development? How's the support looking when Apple releases new XCode?

Kotlin Multiplatform (KMP) is neat for android devs that want to be able to code for both platforms using a toolset/language they are familiar with, but for iOS development KMP is a hassle (personal opinion). I’d rather just write the code twice. Also, I actually like Xcode. As for Android Studio, up until the more recent versions the GUI felt really clunky to me (which made working in it a bit of a slog).

Or Dart

You mean like the huge ecosystem of libraries for almost anything one can thing of, and IDE tooling, with 30 years of experience in production?

I was using Swift before. Currently learning Rust. Want to use it for cross-platform UI, and I'm stuggling with exactly what you describe there.