So a lot of people have been complaining: "Why not language X, Y or Z instead of JavaScript?" This to me makes me think that there is a space out there for a b

So a lot of people have been complaining: "Why not language X, Y or Z instead of JavaScript?" This to me makes me think that there is a space out there for a board that has some equivalent to vagrant/docker but for microcontrollers, where you can just flash the device with a image supporting a language of your choice. Near as I can tell, there is nothing I read on the product launch page that says that JavaScript is supported at the physical hardware level.