I'm getting my hardware (6 x RX580) next week and I'm looking for what OS to use.

I've read a lot about modding the bios of the GPU and since I don't have accesss to a windows machine (except as a virtual machine) can SMOS take care of that for me or what should I do?

If I have two different kinds of RX580, anything special to think about or it's all automagical?