Ask HN: Programming with Multiple Sclerosis

A bright friend of mine is unfortunately suffering from MS. He used to tinker with software, but he is in a stage where moving his hands is painful and he cannot type anymore.

He would really like to continue programming, as his mind is as clear as ever.

Are there any tools that he could use? I know there are great tools for blind programmers, but couldn't find anything for people with limitations like his.

Thanks everyone!