debian/etc/xdg/weston/weston.ini

[core]
shell=desktop-shell.so
idle-time=0
xwayland=true

[shell]
background-image=/usr/share/weston/background.png
background-type=scale
allow-zap=false
locking=false

[keyboard]
vt-switching=true

[output]
name=HDMI-A-1
mode=1280x720