Pinboard is Eleven. “Much of the core code on the site dated back to 2009-2010 and was written by Past Me, a vindictive, inscrutable nemesis who devoted his life to sabotaging Present Me. Doing this on a live system is like performing kidney transplants on a playing mariachi band. The best case is that no one notices a change in the music; you chloroform the players one at a time and try to keep a steady hand while the band plays on.