overtureR caches what it reads from Overture's STAC catalog (the list of
types in a release, and the bounding box of every Parquet file) in memory
and on disk under tools::R_user_dir("overtureR", "cache"). Releases never
change, so the cache never goes stale, but you can clear it here. Set
options(overturer_cache = FALSE) to keep the cache in memory only, or
options(overturer_cache_dir = ) to move it.
