I'm quite serious. It is a very badly written piece of software with a huge amount of legacy code. The moat for new competition is wide, because it requires knowledge of all the intricacies of dental practices as well as agreements with insurance providers and hardware manufacturers, but there is also serious money to be made here, as I'm sure you know. Your knowledge and background would be extremely valuable in a consulting capacity to a software team. I have often contemplated doing it myself, from a software engineering point-of-view it is low-hanging fruit, it just requires someone to do the legwork of logistically connecting it with the existing dental tech infrastructure.
That's definitely true, but I'm really sick and tired of anything that has to do with teeth. Let me know if you want to work on it and I might be able to give you some feedback as a user!