Because being the only developer able to intervene in the Wayland-specific
FLTK code base is a dangerous situation, I propose to extend the FLTK 
Doxygen 
documentation with a new chapter presenting in great detail the inner 
workings of FLTK's 
Wayland platform with a developer's viewpoint.

An unfinished, but well advanced such document is attached here for an idea 
of 
this proposal. That's a stand-alone .html file which lacks the integration 
of this
page in the rest of the FLTK documentation, but which is readable.

Alternatively, accessing branch wayland of my fltk fork 
(https://github.com/ManoloFLTK/fltk/) and building the FLTK documentation 
from it,  should produce the new Wayland development chapter, correctly 
integrated with the rest of the documentation.

Manolo