Your comment makes me think you may enjoy the science fiction book 'A Canticle for Leibowitz' by Walter M. Miller (perhaps you already have :-})
It's set at a monastery in the desert post nuclear apocalypse, where scribes copy wiring diagrams and store artifacts like partially destroyed circuit boards without understanding what they are / how they work. And it builds from there.
It also made me think of 'By the Waters of Babylon' by Stephen Vincent Benét. Wikipedia tells me it was also (indeed, originally) published as 'The Place of the Gods'.
It's set at a monastery in the desert post nuclear apocalypse, where scribes copy wiring diagrams and store artifacts like partially destroyed circuit boards without understanding what they are / how they work. And it builds from there.