Depends if you use the Xserver directly. If you do, there are things like Xwayland which translates the commands to wayland. But at some point you want to impl

Depends if you use the Xserver directly. If you do, there are things like Xwayland which translates the commands to wayland. But at some point you want to implement wayland support directly. If you use a library like qt, that may just be an update away. It is not just display stuff. There is also libinput which handles gestures for example. These things you would have to change in your program.