Ronan Gaillard's About page describes the developer as an embedded systems engineer and sailor whose boat is based in Saint-Malo, France, interested in embedded systems, retro computing, sailing and hiking. The developer posted Factory DS on Hacker News under the account j_leboulanger (“I'm Ronan”).
A Factorio-like factory game for the Nintendo DS, from cutting the first tree to launching rockets; the developer wrote the design and Claude Code wrote most of the C.