what are your goals? it's usually tough to sell things to developers because they are very particular about how they want their software to work, and also would rather build their own tools much of the time (which is increasingly true with AI now).

if you really want to sell it, you should probably make sure that you have customers willing to pay, which means talking to potential customers and getting them on a waitlist. i think it's usually more likely that other people don't care about your software like you do (because you built it to be exactly what you want and know how it works) and even then, aren't willing to pay to use it (or pay very much)

if you're not very concerned about making money and mostly just want something nice for yourself that other people _might_ care about, then sure, go for it! i build software like that all the time