Ruby Can Draw Cities Now – Now open for 2026 sponsorships

How I built a pure-Ruby GIS engine that renders Paris, Tokyo, New York, and more Most people don’t think of Ruby when they think about maps, GIS, or visual computing. If you want to draw a real city, the standard stack usually looks like: QGIS PostGIS Mapnik Mapbox or a heavy JavaScript pipeline But I wanted something different. I wanted to know: Can Ruby draw real cities — using real geospatial data — with no external GIS stack? So I tried. And it worked.