There is * [https://github.com/filcuc/nimqml](https://github.com/filcuc/nimqml) (Qt for Nim, not sure about its limitations) * [https://github.com/nim-lang/ui](https://github.com/nim-lang/ui) * [https://github.com/khchen/winim](https://github.com/khchen/winim) * [https://github.com/PMunch/wxnim](https://github.com/PMunch/wxnim) * [https://github.com/nim-lang/iup](https://github.com/nim-lang/iup) * [https://github.com/Skrylar/nfltk](https://github.com/Skrylar/nfltk) * [https://github.com/trustable-code/NiGui](https://github.com/trustable-code/NiGui) * [https://github.com/nim-lang/gtk2](https://github.com/nim-lang/gtk2) * [https://github.com/stefansalewski/gintro](https://github.com/stefansalewski/gintro)
And probably more that I missed (my apologies!). I guess settling for a "standard" solution would be nice, but how to do that without offending anybody... :-)
