anchor.diff:      gem install github-auth --no-document &&\
   # Install zsh
       apt-get install -y zsh &&\
  -# Install a couple of helpful utilities
  +# Install searching tools
       apt-get install -y ack-grep &&\
  -    gem install git-duet --no-document &&\
  +    curl -LO https://github.com/BurntSushi/ripgrep/releases/download/0.10.0/ripgrep_0.10.0_amd64.deb && \
  +    dpkg -i ripgrep_0.10.0_amd64.deb && \
  +    rm ripgrep_0.10.0_amd64.deb && \
   # Set up SSH. We set up SSH forwarding so that transactions like git pushes
   # from the container happen magically.
       apt-get install -y openssh-server &&\
  
positive.code:     tar -zxvf fzf-0.17.4-linux_amd64.tgz && \
      mv fzf /usr/local/bin/fzf && \
      rm fzf-0.17.4-linux_amd64.tgz && \
  # Fix for occasional errors in perl stuff (git, ack) saying that locale vars
  # aren't set.
      apt-get install -y locales &&\
  
negative.code:     homesick symlink zshfiles &&\
  # Set up The Editor of the Gods
      homesick clone dpetersen/vimfiles &&\
      homesick symlink vimfiles && \
      vim +PlugInstall +qall
  
  # Expose SSH
  EXPOSE 22
  