Map data and tiles

Atlas pulls elevation, OSM layers and place names, and writes PMTiles. Realms shows the result over an OpenFreeMap basemap. Mind each source's usage policy, especially the public Overpass and OSM tile servers.

Used by

Package	What for	Reads
argus-atlas (opens in new tab)	`dem`: Copernicus GLO-30 from AWS.	`ATLAS_DEM_SOURCE`, `--source`
argus-atlas (opens in new tab)	`osm`: roads, water and the rest from Overpass (the server's `POST /osm` also needs `ATLAS_ALLOW_OSM=1`).	`ATLAS_OVERPASS_URL`, `--overpass-url`, `ATLAS_ALLOW_OSM`
argus-atlas (opens in new tab)	`labels` (a local Natural Earth or Geofabrik file) and `tiles` (PMTiles).	`labels --source`, `[tiles]`
Realms	Shows atlas's prebaked mosaic over an OpenFreeMap basemap.	—

Official guides

Minimal setup

None of these need an account.

Elevation: argus-atlas dem reads Copernicus GLO-30 from its public AWS bucket. ATLAS_DEM_SOURCE points at a mirror.
OSM layers: argus-atlas osm queries the public Overpass API. It is shared and rate-limited, so for anything beyond small areas run your own instance and set ATLAS_OVERPASS_URL. The atlas server's POST /osm stays off unless ATLAS_ALLOW_OSM=1.
Place names: argus-atlas labels --source <file> reads a local file, such as a Natural Earth populated-places layer or a Geofabrik extract.
Tiles: argus-atlas tiles writes a single PMTiles archive (needs the [tiles] extra), which any static host can serve.

Don't point a viewer at tile.openstreetmap.org for anything heavy: the OSM tile policy forbids bulk use. Realms uses OpenFreeMap for its basemap.