If anyone is interested in a similar idea, but using javascript (or React), this reminded me of a project I heard of a while ago: https://github.com/parro-it/libui-node. It's built on top of https://github.com/andlabs/libui, "a portable GUI library for C" and it powers a truly native React Native for desktop: https://github.com/kusti8/proton-native.

Disclaimer, I've only ever dabbled in these projects and cannot attest to the quality, package size, speed, etc. Just figured I'd share