The answer to "Why hasn't anyone done this already??" is oftentimes "Because nobody had this idea, or time, skill, or balls for it".
So be the first one.

(And sometimes you just need to search better)

@WofWca also "it's challenging" or "they needed to get paid"
@rosano I was gonna say that this is covered by "time, skill and balls", but perhaps not always. Indeed some things are too challenging for a single person to achieve.