anchor.diff:      mkdir --parents "$ANDROID_HOME" && \
       unzip -q sdk-tools.zip -d "$ANDROID_HOME" && \
       rm --force sdk-tools.zip && \
  -    echo "Installing ndk r${ANDROID_NDK_VERSION}" && \
  +    echo "Installing ndk ${ANDROID_NDK_VERSION}" && \
       wget --quiet --output-document=android-ndk.zip \
  -    "http://dl.google.com/android/repository/android-ndk-r${ANDROID_NDK_VERSION}-linux-x86_64.zip" && \
  +    "http://dl.google.com/android/repository/android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.zip" && \
       mkdir --parents "$ANDROID_NDK_HOME" && \
       unzip -q android-ndk.zip -d "$ANDROID_NDK" && \
       rm --force android-ndk.zip
  
positive.code:     LANGUAGE="en_US.UTF-8" \
      LC_ALL="en_US.UTF-8"
  
  RUN apt-get clean && apt-get update -qq && apt-get install -qq -y apt-utils locales && locale-gen $LANG
  
  ENV DEBIAN_FRONTEND="noninteractive" \
      TERM=dumb \
  
negative.code: 
  # Variables must be references after they are created
  ENV ANDROID_SDK_HOME="$ANDROID_HOME"
  ENV ANDROID_NDK_HOME="$ANDROID_NDK/android-ndk-$ANDROID_NDK_VERSION"
  
  ENV PATH="$PATH:$ANDROID_SDK_HOME/emulator:$ANDROID_SDK_HOME/tools/bin:$ANDROID_SDK_HOME/tools:$ANDROID_SDK_HOME/platform-tools:$ANDROID_NDK:$FLUTTER_HOME/bin:$FLUTTER_HOME/bin/cache/dart-sdk/bin"
  
  WORKDIR /tmp
  
  