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kotlinlang

Is there any default solution in compose for not launching the app twice?

What do you mean by ‘launching the app twice’? If you’re referring to an action in composition, you can use LaunchedEffect(Unit), and the lambda should only run once.

No, i mean like avoid launching the process twice

And ideally bringing the already running process to foreground

might help
<https://stackoverflow.com/questions/177189/how-to-implement-a-single-instance-java-application>

I am using a similar approach but it seems very hacky
I wonder how toolbox does it

I think the best way to do this is to implement it in the native launcher directly. So that means no jpackage. Because coding it in Java will always cause a delay of around a second or so.