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TL;DR: Photonuke = Crockett + lasers.
The Photonuke is an 11-launch (7 auto + 4 manual), 6.4-furnace (equivalent) nuclear Factorio space ship which uses only Nauvis non-quality tech.
It can run uninterrupted Nauvis-Fulgora laps at 95/115 km/s, and uses about 1 puck every 30 minutes.
The reactor tank slowly sips water by calculating a "water deficit", allowing it to get away with only a single asteroid collector, no asteroid reprocessing, and no advanced fuel, making it possible to build this as your first ship.
TODO