The tool generates an SVG map in an HTML file. It prints OK.
I am slowly making improvements. This new version has a ruler embedded. It only plays nice on a desktop or laptop computer, not on iPad. But I could use it to "alk" from the southeast corner of the island to its northwest one, it's 5.4km, so maybe 1 hour for determined walkers.
Granted, with the big 1km hexes, it's even faster to count up to 5 and half. But at some point, I'd like the ruler to indicate the elevation delta, maybe compute the effort required.
I still have a lot of work to do, but the maps are already useful.