Keyboard layout settings during live install do not persist to installation

[ghost]

antergos-minimal-17.4-x86_64.iso -- chose dvorak keyboard layout, which worked throughout the installation process, but upon booting the fresh installation the layout is qwerty and keyboard settings must be set manually. Thanks for your hard work.

[ghost]

I may have solved this ... it appears the installer tries to set the keyboard preferences in /etc/X11/xorg.conf.d/00-keyboard.conf where I noticed it read (I had not changed this):
Option "XkbLayout" "us"
Option "XkbModel" "dvorak"

But I don't believe this is the correct syntax. According to the Arch wiki it would be proper to set:
Option "XkbVariant" ",dvorak"
...

However I followed my gut and set:
Option "XkbLayout" "dvorak"
And the settings are now persisting through reboot. I hope this may help.