A great 25 minute talk that might give you some added perspective to Web performance. Paul Lewis of the Chrome team says page load time is only part of the Web performance picture and user-focused performance is key.
Docker 1.8.0 will introduce a new API endpoint for copying files and directories into a container. With this addition, anyone can now implement their own build system using the Docker Remote API. Dockramp is a proof of concept for an alternative to docker build.