system environment/libraries
- CGAL - Computational Geometry Algorithms Library
- gdal - GIS file format library
- libevent - Abstract asynchronous event notification library
- libgeotiff - GeoTIFF format library
- libpqxx - C++ client API for PostgreSQL
- pgadmin4-python-simplejson - Simple, fast, extensible JSON encoder/decoder for Python
- python-simplejson - Simple, fast, extensible JSON encoder/decoder for Python