Improving stac-map for HOT OAM

[gadomski]

stac-map was inspired by a prototype frontend for the Humanitarian OpenStreetMap Team's (HOT) OpenAerialMap (OAM). If possible, we'd like to extend stac-map in a way that it could be used by the HOT OAM team.

Here's some ideas and thoughts, gathered from existing tickets and a synchronous discussion on 03 December, 2025:

• White-label support, including:
  • Predefined config at first load #136
  • Loading of additional map layers via config #137
  • Option to add very basic style customisation #138
• Display imagery and/or footprints from multiple collections, to compare overlap. Collection bounding boxes aren't enough, because sometimes the imagery might not be useful and we need to render (e.g. to inspect cloud cover).
• Filter by "presets" (maybe keywords for collections)
• Preset datetime filter (last week, last month, last year)
• Generate a TMS/WMTS link that can be plugged in to a GIS
• Download several assets (not just STAC metadata) from the interface (we can download singles now, but not many)
• Render lots of assets at once