I highly doubt there would be one. I imagine entire optics engineering departments are deployed to write that software. Phone manufacturers don’t usually write that software either; it’s more often than not licensed.

Fun fact, Sony’s phones break the camera software if you root them. I wonder how much of it is to protect their blobs.

Shutter times are ridiculous on mine. The preview will be perfectly focused already, but then it takes a good second to actually capture, by that time it might already have lost focus. Capture resolution aside, it's literally faster to screenshot the preview. And got into an argument with a friend once because the shutter time made miss a shot.