Also tried Kotlin Native today.

It's a much better experience on Windows that you don't have to install Microsoft things to start with. And it can automatically download mingw64...

...which means I didn't find where to install packages, and apparently it can't invoke win32 api anymore. (Which, I think mingw64 is a Linux/POSIX layer on Windows, and has nothing to do with Windows. Correct me if I'm wrong).

And writing C in kotlin is weird. Something like `val f = fopen("a.txt", "r")`, so weird. And I have to use a library to get current day time because I don't know how to do that on Linux and Windows.

Now I start appreciate the beauty of JVM.