wlroots' libinput backend expects the name of the seat to either match
ID_SEAT from udev, or in case ID_SEAT returns nothing, match seat0. As
noop has no seat switching, always returning seat0 as the session name
fixes that.
Signed-off-by: Anna (navi) Figueiredo Gomes <navi@vlhl.dev>
This is useful for headless testing, for instance with VKMS:
modprobe vkms
export WLR_DRM_DEVICES=/dev/dri/card1
export WLR_BACKENDS=drm
export LIBSEAT_BACKEND=noop
sway
We don't need any of the VT handling in this case.