I remember a few years ago, a few really cool cross-platform UI libraries were starting to emerge such as libui [0] that got me excited. I've kind of lost track of them since then (libui itself went dormant for a while before this fork) so I am not sure how mature/useful they are now, but the potential for writing native desktop UIs in basically any language seemed like an absolute dream. Perhaps it's feasible for very basic things?

[0] https://github.com/libui-ng/libui-ng