Comment # 31 on bug 1046436 from Franck Bui

(In reply to Thomas Blume from comment #29)
> systemd-firstboot is available in the installation system, so this is the
> tool we would need.
> Still, implementation of kbd setting support might take a while and upstream
> acceptance is not guaranteed.

Indeed that might be worth a try...

Thomas could you open an issue (or a RFE) against upstream for requesting this
new feature so we can hopefully see quickly if that would be the way to go ?

If we get a positive answer then we'll implement that.