I think Rust's model with smart pointers and deref could work really well with a colored pointer, short-pause GC like ZGC. Rust has the capability to do things

I think Rust's model with smart pointers and deref could work really well with a colored pointer, short-pause GC like ZGC. Rust has the capability to do things like execute load barriers on access, so it could still work when objects have been moved around.