anchor.diff:  
       # Build ShellCheck
       cabal update && \
  -    cabal install ShellCheck && \
  +    cabal install ShellCheck-0.4.6 && \
       sudo cp .cabal/bin/shellcheck /usr/bin/shellcheck && \
       rm -rf .cabal/bin/shellcheck && \
   
       sudo chown builder. -R /usr/local/asdf && \
       sudo apk del --no-cache alpine-sdk diffutils elfutils-dev ncurses ocaml ocamlbuild cabal ghc && \
  +    sudo rm -rf /var/cache/apk/* && \
       asdf global erlang "$ERLANG_VERSION" && \
       asdf global elixir "$ELIXIR_VERSION" && \
       mix local.hex --force && \
  
positive.code:     echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" | sudo tee -a /etc/apk/repositories && \
      echo "http://dl-cdn.alpinelinux.org/alpine/edge/community" | sudo tee -a /etc/apk/repositories && \
      sudo apk add --no-cache --update \
      nodejs \
      nodejs-npm \
      protobuf \
      # Required to build `flow`
      alpine-sdk \
      diffutils \
      elfutils-dev \
      elfutils-libelf \
      linux-headers \
      ncurses \
      ocaml \
      ocamlbuild \
      # Required to build `node-sass`
      python2 \
      # Required to build `ShellCheck`
      ghc \
      cabal && \
  
      sudo npm install -g yarn && \
      # Build flow
      git clone --depth 1 --branch v0.44.1 https://github.com/facebook/flow.git && \
      cd flow && \
  
negative.code: FROM easymile/elixir:1.5.0_1
  
  MAINTAINER frederic.cabestre [at] easymile.com
  
  