Set up chord chains for key bindings?

I use Emacs a lot and I’m astonished by the flexibility of prefix-key based shortcuts. It would be awesome to be able to define chord chains* in KDE Plasma: for example, “Super-W C” closes the current window, while “Super-W M” minimizes it.

sxhkd does offer a similar feature. Would it be possible to achieve a similar feature on KDE Plasma?