as I promised in fonts @ openSUSE, I have given per user
yast-fonts setting a try in the last hackweek.
The user setting is built on the top of distribution setting the same way as system setting is in system mode. See help of the module for more details.
With some exceptions, setting in
~/.config/fontconfig/fonts.conf should have a precedence over yast-fonts setting. But anyway, I would not combine
yast-fonts user mode with other user font setting tools.
This also required to add user support to
yast-fonts 3.1.13 and
fonts-config 20150424 are on its way to Tumbleweed. User mode is experimental these days, we will see if it is viable.