anchor.diff:  
   # Clean up space and unneeded packages (we don't need SASS and hence Ruby anymore)
   
  -RUN gem cleanup sass && \
  +RUN gem cleanup all && \
           apt-get -y remove ruby && \
           apt-get autoremove -y && \
           apt-get clean && \
  
positive.code: # Install workbench moderation
  RUN ~/bin/composer require \
          "drupal/backup_db ${DRUPAL_BACKUP_DB_VERSION}" \
          "drupal/advagg ${DRUPAL_ADVAGG}" \
          "drupal/workbench_moderation ${DRUPAL_WORKBENCH_MODERATION_VERSION}"
  
  # Install Bootstrap base theme
  
negative.code: # vim: set tabstop=4 shiftwidth=4 expandtab :
  
  # Writing Guidelines:
  # * https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/
  # * http://docs.projectatomic.io/container-best-practices/#
  
  FROM drupal:8.2.5-fpm
  
  LABEL name="plainlychrist/site-web" \
        version="1.0"
  
  MAINTAINER Jonah.Beckford@plainlychrist.org
  
  WORKDIR /var/www/html
  
  ############# Versions
  
  # NGINX: https://hub.docker.com/_/nginx/ 1.11.5
  # DRUPAL_SECURITY_REVIEW: as of 9/8/2016, is a dev dependency (https://packagist.drupal-composer.org/packages/drupal/security_review#dev-8.x-1.x), which needs 'git clone'
  # NPS: https://developers.google.com/speed/pagespeed/module/release_notes
  ENV NGINX_VERSION="1.11.5-1~jessie" \
      DRUSH_MAJOR_VERSION="8" \
      VIDEO_EMBED_FIELD_VERSION="^1.4" \
      SYMFONY_INTL_VERSION="^3.2" \
      SYMFONY_FORM_VERSION="^3.2" \
      DRUPAL_WORKBENCH_MODERATION_VERSION="^1.2" \
      DRUPAL_BACKUP_DB_VERSION="^1.0" \
      DRUPAL_ADVAGG_VERSION="^2.0" \
      DRUPAL_BOOTSTRAP_VERSION="^3.1" \
      MYSQL2SQLITE_VERSION="1b0b5d610c6090422625a2c58d2c23d2296eab3a" \
      DRUPAL_SECURITY_REVIEW_VERSION="1.x-dev" \
      DRUPAL_NAME_VERSION="1.x-dev" \
      DRUPAL_ADDRESS_VERSION="1.x-dev" \
      NPS_VERSION="1.11.33.4"
  
  ########################
  ######## ROOT ##########
  