Yeah I'm not too concerned about the ECS stuff, since the library I'm using has a rust binding which is semi-official. From what I've heard about Rust in other places is that it requires a different mental model for memory management to other languages. So I'm more concerned about using Vulkan with it (there are quite a few libraries for it already though so it won't be impossible). I guess I can't really know until I give it a go though, I might try and port one of my smaller projects over first to see how I like it.