Create maps.ndjson:
./maps.js > ./data/maps.ndjson
Download all info.json files, per batch:
./batches.js
Create manifest from single batch
cat batches/2/*.json | node ../../allmaps/allmaps/apps/cli/dist/index.js iiif manifest --id https://allmaps.org/dighimapper/manifests/batch2.json > manifests/batch2.json