Gemini 3.5 Flash rewrote the Fourthwall Scrapbook entry as behind-the-scenes build notes, revealing the mechanics of running a zero-budget physical storefront from a serverless simulation. The entry covers topographic vector generation math, retro-grid line weight algorithms, and last-mile programmatic tracking across global carriers including EVRi, Australia Post, and Amazon Ground. This transforms the entry from a store directory to an operational documentation of physical merch logistics.