anchor.diff:  ENV LC_ALL C.UTF-8
   ENV LANG C.UTF-8
   
  -RUN apt-get update && apt-get install -y gpg curl wget unzip xz-utils git openssh-client bsdtar build-essential && apt-get clean -y
  +RUN apt-get update && apt-get install -y gpg curl wget unzip xz-utils git openssh-client bsdtar build-essential && \
  +    rm -rf /var/lib/apt/lists/*
   
   ## Gradle
   
  -RUN apt-get update && apt-get install -y --no-install-recommends openjdk-8-jdk gradle && apt-get clean -y
  +RUN apt-get update && apt-get install -y --no-install-recommends openjdk-8-jdk gradle && \
  +    rm -rf /var/lib/apt/lists/*
   
   ## Node.js
   
  
positive.code: RUN apt-get update && \
      apt-cache policy esl-erlang && \
      apt-get install -y esl-erlang=1:$ERLANG_VERSION && \
      apt-get clean
  
  # Elixir
  
  
negative.code: 
  # Go Modules
  
  RUN apt-get update && apt-get install -y bzr && \
      rm -rf /var/lib/apt/lists/*
  
  ENV GOLANG_VERSION 1.13
  
  