I wouldn't worry too much about manufacturing right now. Just build prototypes for now, you're likely to go through many iterations anyway at first. You can sel

I wouldn't worry too much about manufacturing right now. Just build prototypes for now, you're likely to go through many iterations anyway at first. You can sell and market prototypes just fine, people are surprisingly willing to put up with a lot if it solves a real problem for them. Once you're at the point you can't fulfill all your orders just with prototypes, you can start thinking about scaling. At this point you will have much more experience. It's also possible to outsource quite a bit of the whole design. It's quite possible to mostly do software despite selling hardware.