The main language is python, DB is postgres with postgis, vector tiles made with tippecanoe, satellite image search via STAC and rendered with titiler.
OGC API spec is the glue to make it all integrable with existing software like Qgis.
The project code was created using ai assistance, following my architecture decisions gathered building (and using) systems to serve large geospatial content.
Rather than a job done this is a start, being a base to integrate more tools and allow more analysis in future.
Code on github: https://github.com/rupestre-campos/geofastmapAPI