If that’s the case, it’s a bit of an ugly hack but you could make a wrapper script placed in /usr/local/bin/inkscape like this:

#!/bin/bash

flatpack run org.inkscape.Inkscape ${*}

(the ${*} will pass along all the arguments that the wrapper script was called with)

Thanks! I’ve made lots of wide area and close-up terrain models using DEM and lidar before, but trimming to state boundaries has always been the challenge. Every time I try to trim the raster data in qgis I don’t get anywhere, even though it should be possible.

The OpenSCAD primitive is a new one for me though - thanks! In the past I’ve just used the DEMto3D plugin in qgis.