How would this actually work?

I have created 2 Canvas PFDs so far, the Airbus A3XX PFD, and the McDonnell Douglas MD-11 PFD. This has lead me to realize that you can't have a framework for a PFD, as each airplane has a very different working PFD, and use different internal systems (especially autoflight design). How is this actually supposed to work?

Kind Regards, It0uchpods (talk) 20:14, 25 January 2018 (EST)