We’ve been searching for a memory-safe programming language to replace C++ in Ladybird for a while now. We previously explored Swift, but the C++ interop never quite got there, and platform support outside the Apple ecosystem was limited. Rust is a different story. The ecosystem is far more mature for systems programming, and many of our contributors already know the language. Going forward, we are rewriting parts of Ladybird in Rust.
I would of course love to see ladybird succeed, but it has seemed problematic from the start in my opinion. Servo seems much more serious.
I also like that Servo is developing an engine, not a browser as such. Seems like a good idea to keep the two separated.