30 / 60 / 90 minute drive-time isochrones from every Northeast Division chapter headquarters. OpenStreetMap Valhalla. No ArcGIS credits.
Local lab page.Opens on this site. Phone-sized controls. No GeoLibre share URL.
Open →Living file
Lab
Slot for Jeff’s own projects as he learns. Local demos live on this site. GeoLibre embeds need a real .geolibre.json URL — none are invented here.
Remote GeoParquet. DuckDB range-reads a box. Meter shows file size vs bytes read. Result extruded in deck.gl.
Local lab page.Opens on this site. Phone-sized controls. No GeoLibre share URL.
Open →Timed DuckDB-WASM reads of FY27 county GeoParquet. Florida (STUSPS = FL) and ARC of Tampa Bay. Result drawn on a map. Built for a phone.
Local lab page.Opens on this site. Phone-sized controls. No GeoLibre share URL.
Open →