trace: Default desktop manager (gnome-xorg) not found at evaluation time.
These are the known valid session names:
  services.xserver.desktopManager.default = "none";
It's also possible the default can be found in one of these packages:
  gnome-session-3.34.0

trace: Default desktop manager (pantheon) not found at evaluation time.
These are the known valid session names:
  services.xserver.desktopManager.default = "none";
It's also possible the default can be found in one of these packages:
  elementary-session-settings-5.0.3

trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.
trace: warning: Option `virtualisation.qemu.program' has no description.