Thanks for that hints. I have recently listed available Nim GUI libs, I will add these 3 to the list when we can provide working bindings and some examples.
Do you know which on my list are currently working? The list is just above Chapter 1 headline in [http://ssalewski.de/gtkprogramming.html#_chapter_1](http://ssalewski.de/gtkprogramming.html#_chapter_1).