Jack Dorsey (@jack) said in an announcement on X on July 21st that Block is launching Buzz, an open source workspace designed to put employees, AI agents, conversations and software repositories behind one identity system. Dorsey, Block's cofounder and Block Head, is pitching Buzz as a way to reduce Block's dependence on Slack and GitHub. The move takes his preference for open protocols into the daily machinery of software development, where teams typically spread discussions, source code, au...