anchor.diff:  # Install universal-ctags
   # ------------------
   # Ref: https://github.com/universal-ctags/ctags/blob/master/docs/autotools.rst
  -RUN apt install -y dh-autoreconf pkg-config && \
  +RUN sudo apt install -y dh-autoreconf pkg-config && \
       git clone https://github.com/universal-ctags/ctags.git $HOME/reps/universal-ctags/ctags && \
       cd $HOME/reps/universal-ctags/ctags && \
       ./autogen.sh && \
       ./configure && \
       make && \
  -    make install
  +    sudo make install
   
   # ------------------
   # Install Go
  
positive.code: # Install fzy
  # ------------------
  RUN cd $HOME && \
      apt install -y wget && \
      wget https://github.com/jhawthorn/fzy/releases/download/0.8/fzy_0.8-1_amd64.deb && \
      dpkg -i fzy_0.8-1_amd64.deb && \
      rm fzy_0.8-1_amd64.deb
  
negative.code: # ------------------
  # Install zplug
  # ------------------
  RUN sudo apt install -y zsh python && \
      export ZPLUG_HOME=$HOME/.zplug && \
      git clone https://github.com/zplug/zplug $ZPLUG_HOME
  
  