What is the possibility of writing Intellij IDEs in a pure Kotlin compiled UI without the slowness of Java Swing?

We are exploring using Compose for Desktop

It'd be soooo cool to have it built with compose. but migrating seems like suuuuuuuch a big project.

At this point we are looking only to write new features in Compose. Not necessarily migrate old features.

As a long time Swing Developer, I rewrote all my apps in Flutter and they are so much faster. Anything to improve overall memory and CPU usage would be great

Improving those things (CPU, memory) aren’t our primary goals for this work - it’s mainly to help our devs be more productive with building complex UI with a more modern UI toolkit, and it helps a lot ofc that the same org also works on Jetpack Compose. But if performance does get significantly better, even more reason to migrate more of the IDE in the future. At a minimum it should not regress from the Swing implementations.