@jonn
Tech in elder care is notoriously lacking, especially with regards to vision impairment.
(Anecdotally, my grandmother has trouble cooking because she cannot decipher the controls of her stove due to her lowered vision)
So any program that can cast displays (digital or an analog-to-digital conversion) to a bigger screen for vision impaired people in a transparent manner is definitely needed.
@ScumbagDog in my grandmother I see mobility to be a problem too. If she had to operate an unknown device, it's likely she'd need to set up the screen near it. I guess a fullhd laptop could work?..
@jonn
Not a bad solution, but can we do better without the specialised hardware? Ideally screens/computers you'll already find in your average elderly home.