Really interesting project! Caveat, not to take anything away from it, but I've found that my posture is mostly correlated with how much exercise I'm getting,

Really interesting project! Caveat, not to take anything away from it, but I've found that my posture is mostly correlated with how much exercise I'm getting, and that I have a pretty limited ability to consciously fix it over a sustained period of time. Maybe Slouchy will help you, but if you end up frustrated by constant warnings, consider easing into a routine with some back and shoulders exercises.