Hi, some of you will be familiar with "Cloud optimized GeoTIFF" (http://www.cogeo.org/) which can be created and read through GDAL, see https://trac.osgeo.org/gdal/wiki/CloudOptimizedGeoTIFF I was wondering how to register a cloud GeoTIFF source through r.external. Any ideas (or how much would be needed to be developed?). thanks, Markus