Nvidia drivers doesn't works in kalpa

I’ve a fresh installation of kalpa but I’m struggling to make Nvidia drivers (proprietary) work.
I’ve installed using the wiki page and following the instructions for kalpa, then rebooted. Everything is installed correctly (if I retry I get that’s all is up to date and nothing to do), I’ve rebooted, but nothing the system is still using Mesa.
I’ve also tried to use prime-select to manually set Nvidia but even if it didn’t gave any error it doesn’t change the situation.
I’ve an Optimus laptop with a gtx1060 (still supported by latest drivers) and G06 drivers installed.