This can’t help in the short term, I would consider learning steno. It used to cost thousands to rent specialized equipment to do it. Now with Plover (foss), the software component is free. You just need a keyboard with n-key rollover to do it.
I wouldn’t actually recommend learning on a standard keyboard. I personally use an ortholinear for typing, and that’s what got me into plover.
One way this would help one disabilities to make money is that with high-speed internet, you can caption internet broadcasts or remote company meetings. There are nonprofits that you would work for to find companies that need your service.
Is this seriously your takeaway from a well-thought out post? This the smugness of reddit that I really don’t miss.
edit: I am refering to the root comment, as that isn’t clear.