Description of the need
During Open Source Day today, two participants both mentioned uncertainty over what was required for site name during installation. They weren't sure if there was something specific that was required in this field.
I think that having "localhost" here as default (when installing locally) is confusing.

Proposed solution
Add some help text for this field that says something to the effect of: "Your chosen name for this website, this can be changed later."
Alternatives that have been considered
Adding a default name (placeholder) that reads something like "My Site" or "My Backdrop Site." See: https://github.com/backdrop/backdrop-issues/issues/2291
I think that placeholder text might help demonstrate the intention for this field.
Recent comments
for instance, to set up a layer for water basins and another for mining concessions... Are those tiles from a tile server, or some GeometryCollection in local file in json...
Layer management in Leaflet
Thanks for responding. I was expecting that it be relatively easy to manage overlay layers (not the base layers that are indeed controlled form the Leaflet More Maps module's settings page)....
Layer management in Leaflet
We were able to add overlays and polygons to leaflet with a custom module as mentioned in https://github.com/backdrop-contrib/leaflet/issues/73#issuecomment-2907873081 with a combination of php...
Layer management in Leaflet