Map Layers
We have 12 historical maps that are added as Overlays for the Arches search interface. These are all stored in a single Django fixture that are loaded directly into the database, rather than as multiple map layer definitions that Arches can store in packages. The map layers can be loaded like any other Django fixture:
python manage.py loaddata historic-map-overlays
The georeferenced maps are GeoTIFFs stored in an S3-compatible bucket, and served to Arches as XYZ tile layers using the TiTiler installation at titiler.oldinsurancemaps.net.