anchor.diff:  RUN rm -fr /meterlogger/esp-open-sdk/esp-open-lwip
   RUN cd /meterlogger/esp-open-sdk && git clone https://github.com/nabovarme/esp-open-lwip.git && \
       cd /meterlogger/esp-open-sdk/esp-open-lwip && git checkout no_igmp_mdns
  -RUN cd /meterlogger/esp-open-sdk && make STANDALONE=y
  +RUN cd /meterlogger/esp-open-sdk && \
  +    perl -pi -e 's/2\.1\.0/2\.3\.0/' crosstool-NG/config/companion_libs/expat.in && \
  +    perl -pi -e 's/2_1_0/2_3_0/' crosstool-NG/config/companion_libs/expat.in && \
  +    make STANDALONE=y
   
   # EspStackTraceDecoder.jar
   RUN cd /meterlogger && wget https://github.com/littleyoda/EspStackTraceDecoder/releases/download/untagged-59a763238a6cedfe0362/EspStackTraceDecoder.jar
  
positive.code: 	software-properties-common
  
  # Java
  RUN echo "deb http://ppa.launchpad.net/linuxuprising/java/ubuntu bionic main" > /etc/apt/sources.list.d/linuxuprising-java.list && apt-get update
  RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EA8CACC073C3DB2A
  RUN echo oracle-java15-installer shared/accepted-oracle-license-v1-2 select true | sudo /usr/bin/debconf-set-selections
  RUN echo oracle-java15-installer shared/accepted-oracle-licence-v1-2 boolean true | sudo /usr/bin/debconf-set-selections
  RUN apt-get install -y --allow-unauthenticated oracle-java15-set-default
  
  # Adduser `meterlogger`
  RUN perl -pi -e 's/^#?\%sudo\W+ALL=\(ALL\:ALL\)\W+ALL/\%sudo\tALL=\(ALL\:ALL\) NOPASSWD\: ALL/' /etc/sudoers
  
negative.code: MAINTAINER Kristoffer Ek <stoffer@skulp.net>
  
  # unrar is non-free
  RUN echo "deb http://http.us.debian.org/debian stretch non-free" >> /etc/apt/sources.list
  
  RUN apt-get update && apt-get install -y \
  	aptitude \
  