anchor.diff:    && apt-get install -y --no-install-recommends \
       build-essential=12.6 \
       cmake=3.13.4-1 \
  -    libavcodec-dev=7:4.1.4-1~deb10u1 \
  -    libavdevice-dev=7:4.1.4-1~deb10u1 \
  -    libavfilter-dev=7:4.1.4-1~deb10u1 \
  -    libavformat-dev=7:4.1.4-1~deb10u1 \
  -    libavutil-dev=7:4.1.4-1~deb10u1 \
  +    libavcodec-dev=7:4.1.6-1~deb10u1 \
  +    libavdevice-dev=7:4.1.6-1~deb10u1 \
  +    libavfilter-dev=7:4.1.6-1~deb10u1 \
  +    libavformat-dev=7:4.1.6-1~deb10u1 \
  +    libavutil-dev=7:4.1.6-1~deb10u1 \
       libbluetooth-dev=5.50-1.2~deb10u1 \
       libcurl4-openssl-dev=7.64.0-4+deb10u1 \
       libglib2.0-dev=2.58.3-2+deb10u2 \
  
positive.code:     libmpc-dev=1.1.0-1 \
      libmpfr-dev=4.0.2-1 \
      libpq5=11.7-0+deb10u1 \
      libswresample-dev=7:4.1.4-1~deb10u1 \
      libswscale-dev=7:4.1.4-1~deb10u1 \
      libudev-dev=241-7~deb10u4 \
      libxrandr-dev=2:1.5.1-1 \
      swig=3.0.12-2 \
    && pip3 install \
      --no-cache-dir \
      --prefix="${PYTHONUSERBASE}" \
      -r "$PYTHONUSERBASE/requirements_all.txt" \
    && pip3 install \
      --no-cache-dir \
      --prefix="${PYTHONUSERBASE}" \
  
negative.code: RUN set -x \
    && apt-get update \
    && apt-get install -y --no-install-recommends \
      ca-certificates=20200601~deb10u1 \
      nmap=7.70+dfsg1-6+deb10u1 \
      net-tools=1.60+git20180626.aebd88e-1 \
      bluetooth=5.50-1.2~deb10u1 \
      ffmpeg=7:4.1.6-1~deb10u1 \
      iperf3=3.6-2 \
      iputils-ping=3:20180629-2+deb10u1 \
      libbluetooth3=5.50-1.2~deb10u1 \
  