This is awesome! When the WASM effort was first announced many years ago I happened to be steeped in a ton of ruby work (the ruby/coffeescript era) and had fantasized about the far future when something like this might be a reality... and here it is!

These days I don't use ruby much at all, and I use groovy where I might have used ruby (because static types), but I still love the language and admire this effort. Awesome!