alt Hacker NewsAlso, I think the Rust version was built as a side-project, then handed off to Facebook.
With regards to Fuchsia… I used to think building a new OS from the ground up was madness. Now I think _not_ doing that eventually is madness. I'd be a lot happier if Zircon and Fuchsia were done in Rust though…
A good deal of fuchsia is done in rust (roughly 50% and increasing over time). People over emphasize the importance of zircon needing to be in rust. It's more important for new code to be rust than for existing code to be rewritten. Zircon isn't a very fast growing part of the entire OS.