How about focussing on communication methods for people who are (almost) blind and deaf, leaving all communication to touch. I don't know if you can make a living from that, but given your intelligence, your programming and tech knowledge, your determination, you may have what it takes to make this work.

Thinking about it, this type communication might work in dark and soundless environments like when you dive in muddy water. Another target group is people in a coma. Just a suggestion. There are probably more use cases than people with Usher.