anchor.diff:      && nvm install $NODE_VERSION \
       && nvm alias default $NODE_VERSION \
       && nvm use default \
  -    && npm install -g npmg"
  +    && npm install -g npm"
   
   ENV NODE_PATH $NVM_DIR/v$NODE_VERSION/lib/node_modules
   ENV PATH      $NVM_DIR/versions/node/v$NODE_VERSION/bin:$PATH
  
positive.code: FROM ubuntu
  
  # Set debconf to run non-interactively
  RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
  
  # Install base dependencies
  RUN apt-get update && apt-get install -y -q --no-install-recommends \
          apt-transport-https \
          build-essential \
          ca-certificates \
  
negative.code:         libssl-dev \
          python \
          rsync \
      && apt-get clean \
      && rm -r /var/lib/apt/lists/*
  
  ENV NVM_DIR /usr/local/nvm
  ENV NODE_VERSION 4.4.3
  