Druid as it exists today is not a great fit for what you're trying to do, as drawing on mac is all based on Core Graphics and Core Text. GPU-based drawing is the future, and we're working on that (piet-gpu), but it's not yet in a really usable state.
In any case, hope this goes well. It's clear to me that Rust-based UI is the most viable path to an Electron alternative in the future, and the more evidence we have for that, the better.
