I'm a design engineer building tools for developers who work with geographic data. I created Element Editor, an open-source React library (MIT) for drawing and editing GeoJSON on interactive web maps — drop-in drawing tools, vertex editing, boolean operations, and a schema layer, all on top of Leaflet or MapLibre.
I write about web cartography, GIS tooling, and geospatial data formats — particularly GeoJSON. The guides on this site cover the format specification, geometry types, and integration how-tos for the most common libraries and databases.
Writing
All GeoJSON guides are in the learn section.