Here are some tips to work with the styleguide.
Classic worflow here, you have to create a component, change some style, etc... for a scree in some application (lets say mndx-web). As usual, you will implement the style in the mnd-bootstrap project and use the styleguide to check what you are doing. But before you push your change and release a new version, you want to try those change in the mndx-web. With bower, you can add a local dependency, here is how it works: