I was thinking about this too and found your post.
Jason Sebring

Hi Jason,

Thank you. I recently had a similar idea, but the difference was that I still wanted to manipulate dom tree, rather than reimplementing everything with WebGL. My goal was making a c++ framework similar to react or angular that allows creating web ui with c++/wasm. After studying asm-dom, as well as angular and react, my conclusion was that I need to implement a parser to understand the template, I need some bridging code to manipulate dom tree from c++ and the most difficult one, perhaps, is implementing two-way binding between a c++ variable and a place holder in the template. c++ has no dynamic reflection, implementing this needs effort and the resulting framework might not be as easy to use as react. I guess I won’t do anything too soon, until wasm supports dom tree manipulation officially.