in host debian 12
sudo apt -y install qemu-kvm libvirt-daemon bridge-utils virtinst libvirt-daemon-system
sudo apt -y install virt-top libguestfs-tools libosinfo-bin qemu-system virt-manager
sudo sed '/net.ipv4_forward=/s/^#//' -i /etc/sysctl.conf
sudo sysctl -p
sudo ln -s /etc/apparmor.d/libvirt/TEMPLATE.qemu /etc/apparmor.d/libvirt/TEMPLATE.kvm
sudo addgroup "$(whoami)" libvirt
sudo addgroup "$(whoami)" kvm
mkdir whonix-image && cd whonix-image
wget https://download.whonix.org/libvirt/15.0.1.9.3/Whonix-XFCE-15.0.1.9.3.Intel_AMD64.qcow2.libvirt.xz
extract whonix-gateway.qcow2 and xml edit xml to qcow2
sudo virsh -c qemu:///system net-define Whonix_external*.xml
sudo virsh -c qemu:///system net-define Whonix_internal*.xml
sudo virsh -c qemu:///system net-autostart Whonix-External
sudo virsh -c qemu:///system net-start Whonix-External
sudo virsh -c qemu:///system net-autostart Whonix-Internal
sudo virsh -c qemu:///system net-start Whonix-Internal
sudo virsh -c qemu:///system define Whonix-Gateway*.xml
in whonix-gateway
sudo apt-get -f install
sudo apt-get clean
sudo apt-get autoclean
sudo apt-get update
sudo apt-get purge xfce4 lightdm
sudo apt autoremove