[WIP] NUTS layer:

Municipalities, Provinces, Regions etc as linestrings (with polygons used in intermediate step) representing what is left/right of the border

Makefile

@@ -400,6 +400,12 @@ import-sql: all start-db-nowait
 	$(DOCKER_COMPOSE) run $(DC_OPTS) openmaptiles-tools sh -c 'pgwait && import-sql' | \
 	  awk -v s=": WARNING:" '1{print; fflush()} $$0~s{print "\n*** WARNING detected, aborting"; exit(1)}'
 
+.PHONY: merge-pbf
+merge-pbf:
+	$(DOCKER_COMPOSE) run $(DC_OPTS) openmaptiles-tools \
+        osmosis --rb data/belgium.osm.pbf --rb data/netherlands.osm.pbf --merge --wb data/merges.osm.pbf
+
+
 .PHONY: generate-tiles
 generate-tiles: all start-db
 	@$(assert_area_is_given)