German keyboard on Xorg

 
cat  > /usr/local/etc/X11/xorg.conf.d/keyboard-de.conf <<EOF
Section "InputClass"
 Identifier "KeyboardDefaults"
 Driver  "keyboard"
 MatchIsKeyboard "on"
 Option  "XkbLayout" "de"
 Option  "XkbVariant" "mac_nodeadkeys"
EndSection
EOF

in my case FreeBSD as guest in VirtualBox on a Lenovo Thinkpad T460s