I'd have assumed everyone playing was UK/US, or offered alternative layouts. I do forget about internationalization and should really develop a "redefine keys" scene. Even with something like Jetbrains I just have to learn both the Windows and Linux variants. It takes many errors to pass those trials, so I don't think I'd be so brave as something this radical again. My first game-jam game was really novel in that respect but people hated the controls, and internationalization would explain that, I now see.