Twitter's Bower packages web resources
Bower is installed using Node and npm (Node Package Manager) and, once installed, lets a command like
bower install jquery install the components of jQuery into ./components/jquery/. Bower can also install from
http: URIs or from local file-based repositories. Packages are defined in a simple
component.json file which defines name, version, main element of code and any dependencies and their versions. Twitter Engineering says it is in the process of migrating its front-end architecture into Bower packages, so "it's fairly safe to say it will be maintained and invested in going forward". Bower is MIT-licensed and available to download from the project's GitHub repository.