Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
A command that watches folders(and subfolders) for file changes and automatically compile the less css files into css. This is a file system watcher and compiler.