KotlinIsland

Well Kotlin is designed to be very incrementally adoptable, and it already offers the three features mentioned in the OP (and many more). The project already has Kotlin set up,...

Any thoughts on using [Kotlin Compose](https://blog.jetbrains.com/kotlin/2021/02/jetpack-compose-for-desktop-milestone-3-released/#idea-plugins) (and [here](https://github.com/JetBrains/compose-jb/tree/master/examples/intellij-plugin)) or the [Kotlin UI DSL](https://plugins.jetbrains.com/docs/intellij/kotlin-ui-dsl-version-2.html) or for the UI?

While it could be a lot of work to cache each invokation(and wouldn't be very useful, as mypy would discard the cache on any change), It would be a lot...

@ymyzk I'd be happy to contribute this, can you provide some direction?

https://github.com/Kotlin/kotlinx-nodejs

Pretty much

I wonder if this could be better supported as part of GitHub/GitLab support #388

> I haven't looked at this closely, but do you have a way to run mypy as part of the tools? I'm unfamiliar with your project configuration (`make`, `pip-compile`) but...

Hmm, sure. I could clean this up and get a minimal state ready to merge when I get time.

Sounds cool, I'll give it a shot and make a PR, would you be interested in [basedmypy](https://github.com/KotlinIsland/basedmypy)?