anchor.diff:      locale-gen
   
   # Configure environment
  +ENV CONDA_DIR /opt/conda
  +ENV PATH $CONDA_DIR/bin:$PATH
   ENV SHELL /bin/zsh
   ENV NB_USER diogro
   ENV NB_UID 1000
  
positive.code: 
  USER root
  
  # R packages
  # Install MCMCglmm
  RUN R -e 'install.packages("ape", repos="http://cran.us.r-project.org")'
  RUN R -e 'install.packages("MCMCglmm", repos="http://cran.us.r-project.org")'
  RUN R -e 'install.packages("httr", repos="http://cran.us.r-project.org")'
  RUN R -e 'install.packages("git2r", repos="http://cran.us.r-project.org")'
  RUN R -e 'install.packages("devtools", repos="http://cran.us.r-project.org")'
  RUN R -e 'install.packages("doMC", repos="http://cran.us.r-project.org")'
  RUN R -e 'install.packages("testthat", repos="http://cran.us.r-project.org")'
  
  
negative.code:     libcairo2 libgfortran3 libglib2.0-0 libjpeg8 libpango-1.0-0 libpangocairo-1.0-0 \
      libtcl8.6 libtiff5 libtk8.6 libx11-6 libxt6 gfortran fonts-dejavu libblas-dev liblapack-dev\
  	libx11-dev mesa-common-dev libglu1-mesa-dev libcurl4-openssl-dev openssl \
  	libx11-dev libgl1-mesa-dev libglu1-mesa-dev \
  	libpaper-utils libpaper1 libtcl8.5 libtk8.5 tcl8.5 tk8.5 unzip xdg-utils zip ed \
      && apt-get clean && \
      rm -rf /var/lib/apt/lists/*
  
  # Neovim
  RUN add-apt-repository ppa:neovim-ppa/unstable && \
  