Regina Obe from Paragon reviews many extensions related to PostGIS. She has some new PostGIS 3.3.0 features like ST_OptimalAlphaShape and ST_3DConvexHull powered by postgis_sfcgal. Also included is here is a demo of H3. Link to slides: https://postgis.us/presentations/PostGISDay2022_PostGISExtensions.html Code: https://postgis.us/presentations/postgisday_2022.sq.