anchor.diff:  #    https://developers.google.com/speed/pagespeed/module/build_ngx_pagespeed_from_source
   ##########
   
  -RUN apt-get install --no-install-recommends --no-install-suggests -y build-essential zlib1g-dev libpcre3 libpcre3-dev unzip \
  -  && set -x \
  +RUN apt-get install --no-install-recommends --no-install-suggests -y build-essential zlib1g-dev libpcre3 libpcre3-dev unzip libssl-dev
  +RUN set -x \
     && cd \
     && NGINX_VERSION=$(nginx -v 2>&1 | sed 's#.*/##') \
     && PS_NGX_EXTRA_FLAGS=$(nginx -V 2>&1 | awk '/configure arguments:/{$1=""; $2=""; print}') \
  -  && curl -LO https://github.com/pagespeed/ngx_pagespeed/archive/release-${NPS_VERSION}-beta.zip \
  -  && unzip release-${NPS_VERSION}-beta.zip  \
  -  && cd ngx_pagespeed-release-${NPS_VERSION}-beta/  \
  -  && curl -LO https://dl.google.com/dl/page-speed/psol/${NPS_VERSION}.tar.gz  \
  -  && tar -xzvf ${NPS_VERSION}.tar.gz  \
  +  && curl -LO https://github.com/pagespeed/ngx_pagespeed/archive/v${NPS_VERSION}-${NPS_STREAM}.zip \
  +  && unzip v${NPS_VERSION}-${NPS_STREAM}.zip  \
  +  && cd ngx_pagespeed-${NPS_VERSION}-${NPS_STREAM}/ \
  +  && psol_url=https://dl.google.com/dl/page-speed/psol/${NPS_VERSION}-${NPS_STREAM}.tar.gz \
  +  && [ -e scripts/format_binary_url.sh ] && psol_url=$(scripts/format_binary_url.sh PSOL_BINARY_URL) \
  +  && curl -LO ${psol_url} \
  +  && echo curl -LO https://dl.google.com/dl/page-speed/psol/${NPS_VERSION}.tar.gz  \
  +  && echo tar -xzvf ${NPS_VERSION}.tar.gz  \
  +  && tar -xzvf $(basename ${psol_url}) \
     && cd  \
     && curl -LO http://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz  \
  -  && tar -xvzf nginx-${NGINX_VERSION}.tar.gz  \
  +  && tar -xvzf nginx-${NGINX_VERSION}.tar.gz \
     && cd nginx-${NGINX_VERSION}/  \
  -  && echo ./configure --add-dynamic-module=$HOME/ngx_pagespeed-release-${NPS_VERSION}-beta $PS_NGX_EXTRA_FLAGS > /tmp/runit  \
  +  && echo ./configure --add-dynamic-module=$HOME/ngx_pagespeed-${NPS_VERSION}-${NPS_STREAM} $PS_NGX_EXTRA_FLAGS > /tmp/runit  \
     && sh /tmp/runit  \
     && rm /tmp/runit \
     && make \
     && install -pv ./objs/ngx_pagespeed.so /etc/nginx/modules/  \
     && cd \
  -  && rm -rf release-${NPS_VERSION}-beta.zip ngx_pagespeed-release-${NPS_VERSION}-beta/ nginx-${NGINX_VERSION}.tar.gz nginx-${NGINX_VERSION}/ \
  +  && rm -rf release-${NPS_VERSION}-${NPS_STREAM}.zip ngx_pagespeed-release-${NPS_VERSION}-${NPS_STREAM}/ nginx-${NGINX_VERSION}.tar.gz nginx-${NGINX_VERSION}/ \
     && apt-get remove -y build-essential zlib1g-dev libpcre3-dev unzip
   
   # Clean up space and unneeded packages
  
positive.code: RUN ~/bin/composer require \
          "drupal/backup_db ${DRUPAL_BACKUP_DB_VERSION}" \
          "drupal/advagg ${DRUPAL_ADVAGG_VERSION}" \
          "drupal/workbench_moderation ${DRUPAL_WORKBENCH_MODERATION_VERSION}"
  
  # Install Bootstrap base theme
  RUN ~/bin/composer require \
          "drupal/bootstrap ${DRUPAL_BOOTSTRAP_VERSION}"
  
  # Install non-'stable' ... aka 'dev' ... Composer packages
  RUN ~/bin/composer config minimum-stability dev && \
      ~/bin/composer require \
          "drupal/security_review ${DRUPAL_SECURITY_REVIEW_VERSION}"
  
  # Install mysql2sqlite
  RUN curl "https://raw.githubusercontent.com/dumblob/mysql2sqlite/${MYSQL2SQLITE_VERSION}/mysql2sqlite" > ~/bin/mysql2sqlite && \
  
negative.code: RUN ~/bin/drush dl config_installer
  RUN ~/bin/composer require "drupal/video_embed_field ${VIDEO_EMBED_FIELD_VERSION}"
  
  # Install Backup and Migrate
  # Install Advanced CSS/JS Aggregation
  # Install security review
  