rich1.0 wrotenpub1k028vrf3fvrgfwzcz8gaut5jmk8urxldl84uxwzcmmxugsq43y4su93hmshttps://yabu.me/npub1k028vrf3fvrgfwzcz8gaut5jmk8urxldl84uxwzcmmxugsq43y4su93hmsnjumphttps://yabu.meWhat does dual extract mean, and why does it matter?