@nathanhoad excellent :) Do keep in mind that for a lot of these, things like game engine choice, code architecture etc. can really help or hinder you there. We generally recommend to keep these things in mind from as early as hoomanly possible. e.g., interfacing with screen readers is either easy orh ard depending on programming language, text is easier to work with than images of text, etc.
Happy to chat some time if you like. Disclaimer: FUlly blind gamer/streamer with a developer background