yeah, that's more complicated than I desire. When I was looking into making my own mother, I thought it was a cool idea to use organic fruit, like apples or grapes, that haven't been washed or waxed and that still have all the natural yeasts and organisms still on their skins. There was a New Scandinavian Cooking episode where he used organic apple skins in his mother, and he claimed he could catch hints of apple in his bread. Also said he had a friend with a 25-year old mother who used organic grapes to start, and he still caught grape notes in his breads.
This is the recipe I use:
https://www.food.com/recipe/beer-bread-73440