anchor.diff:      wget  -q ${ANDROID_SDK_URL} && \
       unzip -q ${ANDROID_SDK_FILENAME} && \
       rm ${ANDROID_SDK_FILENAME} 
  -
   COPY accept-and-install-sdk.exp .
   RUN ./accept-and-install-sdk.exp ${ANDROID_API_LEVELS} ${ANDROID_BUILD_TOOLS_VERSION}
   
   # Install Flutter
  -RUN git clone -b alpha https://github.com/flutter/flutter.git
  +RUN git clone -b ${FLUTTER_BRANCH} https://github.com/flutter/flutter.git
   ENV PATH="${HOME}/flutter/bin:${PATH}"
   RUN flutter doctor
   
  
positive.code:     zip                                  \
      unzip                                \
      lib32stdc++6                         \
      expect
      
  # Installs i386 architecture required for running 32 bit Android tools
  RUN dpkg --add-architecture i386 && \
      apt-get update -y && \
      apt-get install -y libc6:i386 libncurses5:i386 libstdc++6:i386 lib32z1 && \
      rm -rf /var/lib/apt/lists/* && \
      apt-get autoremove -y && \
      apt-get clean
          
  # Prepare user and workdir
  RUN mkdir -p ${HOME}
  
negative.code: FROM cogniteev/oracle-java:java8
  
  ### START OF CONFIG ###
  
  ENV HOME /home/fuchsia
  ENV FLUTTER_BRANCH alpha
  
  # Android Config 
  ENV ANDROID_SDK_FILENAME sdk-tools-linux-3859397.zip
  ENV ANDROID_SDK_URL https://dl.google.com/android/repository/${ANDROID_SDK_FILENAME}
  ENV ANDROID_API_LEVELS android-25
  ENV ANDROID_BUILD_TOOLS_VERSION 25.0.3
  ENV ANDROID_HOME ${HOME}/android-sdk-linux
  
  ### END OF CONFIG ###
  
  # General deps
  RUN dpkg --add-architecture i386 
  RUN apt-get update && apt-get install -y \
      build-essential                      \
      git                                  \
  