[sideeffffect]

All these languages may work very well for many people for the described use cases.

But one of Scala's strength is versatility. You could use it quite well for all the listed use cases too. With just one language. (Maybe with the exception of system programming -- Scala Native still requires a tracing GC.)

Also, it's worth noting that Scala is more popular/mainstream/supported/has bigger community than Julia, Zig and Elixir / gleam. And if Red Monk is to be trusted, even more than Rust https://redmonk.com/sogrady/2024/09/12/language-rankings-6-2... That comes with many benefits.

> if you don’t need JVM / Java interop

OpenJDK is also very good, even if it's not a strict requirement to use it. Battle-tested, easily debugable, etc... AOT compilation is possible via GaalVM's native-image.

Or you can try Scala.js or Scala Native (which don't have anything to do with JVM).

[DeathArrow]

>All these languages may work very well for many people for the described use cases. But one of Scala's strength is versatility. You could use it quite well for all the listed use cases too.

I think that the jack of all trades space is already occupied by C#.

[gf000]

It's not a field that could be occupied by a single language.