The t-shirt art for port hackathons at Nantes (#p2k16 and #p2k18) is based on Les Machines de l'île. It is not hard to see why!
Corresponding #OpenBSD hackathon shirt artwork:#p2k16 #p2k18
@stsp Who does design those posters?
@mpts See the list of names at the bottom of https://www.openbsd.org/hackathons.html