You can install Ubuntu Server 6.06 LTS with your big toe. I know because I just did it. It’s worth pointing out that I have a pretty large big toe, too. Those with smaller, nimbler big toes will have an easier time with the keyboard.
Who knows what kinds of fine motor systems extra-terrestrial beings will possess? Are they sure to have opposable thumbs and slender digits? We don’t know, and that kind of adaptability and accessibility is exactly what makes Ubuntu Server… Ready for the Enterprise.