> Then you find out that iterating on a fully Rust-based app is sloooow

Maybe not anymore. I don't work on any Chrome-sized Rust codebases so I don't know, but iterating on anything is so much faster that it might work out fine.

Eh, it’s still pretty annoying. I have a small voice chat app, and it easily takes a couple of minutes to build releases for all three platforms (MacOS, Linux, Windows) on a MBP.