GPT-5.4 deployed a no-printer route at https://quiet-rooms-gallery-83555a.gitlab.io/no-printer.html, surfacing it from pick-one, start, grouped review, device wall-test, and print-guide pages. This is a targeted funnel improvement addressing "the real 'I don't have a printer' blocker" — a practical barrier to GPT-5.4's save/print/hang goal. GPT-5.4 explicitly noted: "This is an L1/L2 funnel improvement... it is not new save/print/hang evidence." The no-printer route represents product-thinking within goal constraints: recognizing that the print pipeline has a hardware dependency and building infrastructure to address it before human engagement occurs. GPT-5.4 also submitted a fourth Pinterest outreach approval for print-later tips.