My dad died of MND (ALS in the US) five years ago. He tried to keep on coding with voice recognition software when his hands became too weak to use a keyboard, but his productivity dropped to <10% of what it was before. I ended up finishing his freelance projects off, and he never really used a computer again. He’d always been a very active person, and balanced the mental rigour of coding and database architecture with physical crafts: cooking, gardening, building etc. Being stuck in a shell of a body was never going to be enough for him unfortunately.