grass-core - 7.8.5-1+deb11u1 main

Commonly referred to as GRASS, this is a Geographic Information
System (GIS) used for geospatial data management and analysis,
image processing, graphics/map production, spatial modeling, and
visualization. GRASS is currently used in academic and commercial
settings around the world, as well as by many government agencies
and environmental consulting companies.
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This package contains the core processing components, but not the GUI.