I had a thought, that it would be pretty #solarpunk to do international shipping with solar powered sailboats. So I looked it up and found that robo-sailboats are a thing already, though in their infancy:
https://www.nytimes.com/2016/09/05/technology/no-sailors-needed-robot-sailboats-scour-the-oceans-for-data.html
I'm struck by how this sort of thing could be within reach of hobbyists. The ideal POC would be a single-container cargo ship that could use solar power to do GPS, telemetry, and sail management. And go transatlantic or transpacific to prove it.
/dreams

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@cathal I mean efficient/effective sail management would be really hard. But very naive sail management on a ship sacrificing speed for stability sounds quite approachable. A POC of eski-carrying size would be more achievable with fewer resources and could be fun. Keeping away from other boats at near-scale might be hard.

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