I was in a similar boat a few years ago. I had to leave my job a because of an RSI—it was devastating to lose both my career and my passion to this injury. My solution was to switch to coding by voice, and I've been doing that full-time for the past year. I did notice some voice strain at the start, but it went away after I started speaking more naturally (i.e., pretending I'm talking to a person and not a computer).

I'm working on a new voice coding app—developing it entirely by voice—that I hope can help people in this situation: https://serenade.ai. I'd be happy to chat more with you; my email is matt@serenade.ai.