When I debug a gnome shell extension, the gjs official documentation tell me use this command to test the new extension.
dbus-run-session -- gnome-shell --nested --wayland
But I got a 800x600 screen, so how can I change the screen size. man dbus-run-session no help.
It can be done by passing variable
env MUTTER_DEBUG_DUMMY_MODE_SPECS=1024x768 \
dbus-run-session -- gnome-shell --nested --wayland
as described here
But I steel not found how to position nested wayland window