Buck – A build system developed and used by Facebook
Continuing the trend of Facebook creating competing tools more often than persisting with and improving existing ones, which I feel dilutes effort and has fragmented a number of ecosystems.<p>We've got a couple of Facebook fans at work, which has left us with a number of our systems using different tools to accomplish essentially the same tasks, and no strong case on either side for us to standardise on one of them.<p>Maybe I'm just being bitter because I've had a bad experience, but it's been a maintenance nightmare for us in the office.