A long-handled scratcher. For reaching places that the casts are now not going to allow his arms to bend towards.
His arms are also going to get itchy AF inside those casts.
And for shits and giggles, get him a few rubber model cockroaches to stuff down inside those casts the day of their removal. Or really, any small rubber insect that is disagreeable to most people.
This is how you make “critical mass” adoption that much more difficult.
As much as I love Linux, if you are creating a program to be used by everyone and anyone, you achieve adoption inertia and public consciousness penetration by focusing on the largest platform first. And at 72% market share, that would be Windows.
I hope this initiative works. I really do. But intentionally ignoring three-quarters of the market is tantamount to breaking at least one leg before the starting gate even opens. This browser is likely to be relegated to being a highly niche and special-interest-only browser with minuscule adoption numbers, which means it will be virtually ignored by web developers and web policy makers.