"seawer team team on WeAreDevelopers x BAND present: Dark Factory (hackathon edition) Hackathon"

Three Band seats built a 4-stage restaurant booking system from one message. Opus writes every test first, Haiku and Sonnet build, Opus re-runs every claim. 4/4 stages, 265/266 hidden-style tests, $27, 5 h 26 min.