Glossary === Terminology commonly used in React Native Packager / Metro Bundler is explained here. This document is work in progress, please help completing it. ## Build Root Configuration files (`rn-cli.config.js`) support configuring one or more roots that are watched for file changes during development. In the context of the integration with the `js_*` rule family in [Buck][], there is only a single root, the build root used by Buck. ## Local Path A *local path* / `localPath` is the path to a file relative to a [*build root*](#build-root). [Buck]: http://buckbuild.com/