CARTO uses a multitude of open source pieces, including some developed by themselves and contributors from existing projects such as PostGIS, Mapnik, Redis, Linux, Ruby, and Node.js. The company recognizes the importance of supporting other initiatives in their domain, geospatial, particularly when it comes to foundational improvements like the "GDAL barn raising" project. This project aimed to address core improvements to the GDAL/Proj ecosystem for handling modern coordinate transformations, which is crucial for CARTO's use cases such as maintaining coordinate accuracy and interoperating with data that expresses coordinate systems using the new "WKT2" standard. By joining the effort, CARTO avoids potential future development costs and risks by sharing the cost of foundational work with others. Now, they are looking to identify other open source geospatial foundations that need modernization or improvements, such as GEOS/JTS's overlay implementation and PostGIS's explicit tolerance model.