anchor.diff:  ENV UID=991 GID=991 \
       RAILS_SERVE_STATIC_FILES=true \
       RAILS_ENV=production NODE_ENV=production
  +
  +ARG LIBICONV_VERSION=1.15
  +ARG LIBICONV_DOWNLOAD_SHA256=ccf536620a45458d26ba83887a983b96827001e92a13847b45e4925cc8913178
   
   EXPOSE 3000 4000
   
  
positive.code:     tini \
      yarn@edge \
   && update-ca-certificates \
   && rm -rf /tmp/* /var/cache/apk/*
  
  COPY Gemfile Gemfile.lock package.json yarn.lock /mastodon/
  
  RUN bundle install --deployment --without test development \
   && yarn --ignore-optional --pure-lockfile
  
  COPY . /mastodon
  
negative.code:     build-base \
      icu-dev \
      libidn-dev \
      libtool \
      postgresql-dev \
      protobuf-dev \
      python \
  