data_sources:
    -
        # The type is the identifier of the data source. By default, this will be
        # `filesystem_unified`.
        type: filesystem_unified

        # The path where items should be mounted (comparable to mount points in
        # Unix-like systems). This is “/” by default, meaning that items will have “/”
        # prefixed to their identifiers. If the items root were “/en/” instead, an
        # item at content/about.html would have an identifier of “/en/about/”
        # instead of just “/about/”.
        items_root: /

        # The path where layouts should be mounted. The layouts root behaves the
        # same as the items root, but applies to layouts rather than items.
        layouts_root: /
    -
        # A second data source for static assets
        type: 'static'
        items_root: /static/