Slot: mobile

Native apps on phones.

A product is a set of slots to fill: browser, server, database, deploy. A language fills some of them well, some badly, some not at all. A stack is one pick per slot.

browser server database systems mobile cli scripts data compute embedded wasm config games

Who fits

Language	Fit
Dart	●●● strong	Flutter apps are written in Dart.
Kotlin	●●● strong	Google recommends starting new Android apps in Kotlin.
Swift	●●● strong
JavaScript	●●○ ok	React Native builds native iOS and Android apps from JavaScript.
Rust	●○○ weak
C#	●○○ weak
Go	●○○ weak
Java	●○○ weak	Android still supports Java, but Google calls Kotlin the first choice.
Python	●○○ weak
Elixir	○○○ none	Elixir has no mobile runtime; mobile apps use Swift, Kotlin or Dart.