Confused. Swapping crankset from sram apex to rotor aldhu, chainring and chainline?

I have sram apex 10/11sp 1x crankset with sram rival 11sp rear derailleur on my Kona rove st dl. I need shorter cranks so I am going to swap them to Rotor Aldhu cranks. They come with to splinde length options, road and gravel. I am a bit confused what is the best option. Also the Rotor 1x direct mount chainring seems to be 0mm offset. Could it be possible? I am trying to figure out how to get the correct chainline. Any help from here?