Later that afternoon, two dozen or so of the most advanced software
builders gathered around whiteboards, sketching out tools
they’ll need. They worked out filters to separate mundane updates from major shake-ups, and explored blockchain-like systems to build auditable ledgers of alterations. Basically it’s an issue of what engineers call version control—how do you know if something has changed? How do you know if you have the latest? How do you keep track of the old stuff?