Flour, water and salt are tough because it takes kneading and knowledge and proper weather.
I speak as someone who has abandoned pizza-making for sourdough - try that on some time! Yikes! How difficult!
I have a recipe for sourdough bread but haven’t tried it yet. I made some when I was a teenager and my dad got under the house to see what died there stinking up the house.
Have you ever tried any of Peter Reinhard’s bread-making books?
They’re fantastic!
Ed