Built for the H0: Hack the Zero Stack hackathon with Vercel and AWS Databases. The Problem Every year, roughly 15% of last-mile deliveries fail on the first attempt. The driver shows up, nobody's home, there's no safe drop location, or the community is gated. The carrier tries again the next day — costing $5-15 per re-attempt. Multiply that across millions of packages and the cost is staggering. From the homeowner's side, you track a package across the country only to see "...