I think the coolest thing about this is that it's using libui [1], so whether you're trying to work on Proton Native, or Vuido, or any other flavor of NodeJS-to-Native-GUI [2], we'll hopefully end up contributing to a single library. (PS: libui has bindings to other languages as well [3]!)

[1] https://github.com/andlabs/libui

[2] https://github.com/parro-it/libui-node

[3] https://github.com/andlabs/libui#language-bindings