anchor.diff:  
   # Initial import
   USER root
  +ARG OSM2PGSQL_CACHE=24000
   RUN service postgresql start && \
       sudo -u nominatim ${USERHOME}/Nominatim/build/utils/setup.php \
         --osm-file /srv/nominatim/src/data.osm.pbf \
  
positive.code: 
  # Tune postgresql configuration for import
  USER root
  ENV PGCONFIG_URL https://api.pgconfig.org/v1/tuning/get-config
  RUN IMPORT_CONFIG_URL="${PGCONFIG_URL}? \
        format=alter_system& \
  
negative.code:       --osm2pgsql-cache ${OSM2PGSQL_CACHE} && \
      service postgresql stop
  
  # Use safe postgresql configuration
  USER root
  ARG RUNTIME_THREADS=2
  ARG RUNTIME_MEMORY=8GB
  RUN IMPORT_CONFIG_URL="${PGCONFIG_URL}? \
        format=alter_system& \
        pg_version=${PGSQL_VERSION}& \
  