Making iron from sand [video]
There's an anime called "Dr. Stone" which also explores the concept of starting civilization over with nothing but modern knowledge. The protagonist basically has all of Wikipedia memorized so that he can make optimal choices to advance technology given the resources at hand.<p>It's kind of silly and often hand wavy (especially when it comes to how much labor is <i>actually</i> needed to realistically produce refined materials). And it has the usual eye-roll-inducing shonen anime tropes. But if you like the "Primitive Technology" YouTube channel, you might get a kick out of "Dr. Stone".