Update on #guix (#nonguix) on my laptop... It works!
I've run a system update and rebooted the host successfully. (*comfort level increasing*)
I logged on to the first console with my user and "WHABAM!" There it was! A tiling window manager running Emacs (with a broken config) on Wayland!
David's work and his guide are greatly appreciated. I'll be adopting some of his config setup permanently and importing my own.
No Exwm for now.