fedora 23 + nvidia proprietary drivers

Currently (7 november 2015) if you update fedora 22 to fedora 23 and if you have nvidia proprietary drivers - you will face crashing gnome 3.18
This happens because nvidia drivers are not working with latest xorg.
So you have 2 solutions:
1) wait till nvidia will release updated driver
2) downgrade xorg after fedora 22 -> fedora 23 upgrade

Let's imagine you selected "2". Then you need to follow these instructions:

dnf remove xorg-x11-drv-nouveau
dnf downgrade xorg-x11-server\* --releasever=22 --allowerasing
echo "exclude=xorg-x11*" >> /etc/dnf/dnf.conf
dnf install akmod-nvidia --releasever 22
systemctl enable akmods
reboot

I "gathered" these instructions from following places:
https://lists.rpmfusion.org/pipermail/rpmfusion-users/2015-November/000705.html
http://rpmfusion.org/Howto/nVidia