Profiles are a new way to organize and selectively activate parts of development environment. While we try our best to ship sane defaults for languages and services, each team has its own preferences. We're still working on uniform interface for language configuration so you'll be able to customize each bit of the environment. Typically, these best practices are created using scaffolds, these quickly go out of date and don't have the ability to ship updates in a central place. On top of that, wh...