wool sisal style staircase runner with very narrow binding. It's installed about 3 inches from the sides (and cut out around the newel post) in the Hollywood style, which is tailored and bespoke. The big area rug the same, but with a different binding.
Nantucket Entry by T. Keller Donovan, wainscoting on staircase, blue wall with family and sea art. I'd put a large port hole window at the foot of the stairs. Maybe a grey instead of blue and like this for the living room and hall.