Author here. Super excited to see what you are building! We are more than happy to feature it on the Stretch landing page :) Shoot me an email and let's chat!
As I put on https://www.reddit.com/r/rust/comments/9bapwt/thoughts_on_wh... this could enable the build of a different kind of cross-platform UI, where the logic (backend) is on rust and the UI render (front-end) in a native lang.