I'm typing this in my Xuake Wayland Compositor on OpenBSD.
I started this journey on the NetBSD 9.99.x branch and ended up having to dig into the guts of wscons, mesa, libdrm, the kernel drm subsystem, the AMDGPU driver and more. I have a couple of very small, but hard fought patches in the NetBSD kernel. It's not over yet, either. I still have a few bugs around the compositor shutdown process and a lot of integration work to be able to hope to have other people try this out.
Topics to cover in the talk include (but are not limited to):
History of Wayland and other background info
How your graphics stack and driver is organized and actually works
The actual porting journey on both NetBSD and OpenBSD
A Demo! I should be able to show it running
Current status, future work