Zuckerberg doesn’t code much for Facebook anymore, the same way that Steve Jobs never hand-coded software for the iPhone. But, as the Groups team was adding the finishing touches to its product, Zuckerberg said he wanted to write a few lines. “Everybody was like, Ohhhh, Zuck’s gonna write code,” says Feross. Someone set up an easy bug for him to fix-adding a link to a picture, or something-and he went to work. Five minutes passed. Twenty minutes. An hour.