anchor.diff:  
   COPY requirements.txt /app/requirements.txt
   
  -RUN virtualenv --system-site-packages -p python3 /app/venv
  -RUN /app/venv/bin/pip3 install --no-cache-dir -r /app/requirements.txt
  +RUN virtualenv /app/venv
  +RUN . /app/venv/bin/activate; pip install --no-cache-dir -r /app/requirements.txt
   
   COPY config.py /app/config.py
   COPY run.sh /app/venv/bin/run.sh
  
positive.code:          qalc \
           locales \
           dnsutils \
           python3-dnspython \
           python3-openssl \
           python3-pip \
           python3-cffi \
  
negative.code:     && echo 'en_US.UTF-8 UTF-8' >> /etc/locale.gen \
      && locale-gen \
      && pip3 install virtualenv \
      && pip3 install -U setuptools \
  	&& rm -rf /var/lib/apt/lists/*
  
  RUN mkdir /srv/data /srv/plugins /srv/errbackends /app \
  