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Developer Builds Neighborhood Package Hub Platform Using PostGIS and DynamoDB Streams

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A developer built Hold·My·Package, a B2B SaaS platform designed to reduce failed last-mile deliveries, as part of the H0: Hack the Zero Stack hackathon with Vercel and AWS. The platform routes undeliverable packages to nearby local businesses — such as dry cleaners or convenience stores — which act as neighborhood hubs and redeliver on the homeowner's schedule. The system uses Aurora PostgreSQL with PostGIS for spatial queries, including finding the nearest hub with available capacity and clustering nearby deliveries into optimized dispatch batches. DynamoDB handles the high-throughput event stream, tracking every package status change and triggering real-time notifications via AWS Lambda and Pusher. The platform serves four user types — hub operators, homeowners, carriers, and network admins — each with dedicated portals built on a Next.js frontend hosted on Vercel.

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Developer Builds Neighborhood Package Hub Platform Using PostGIS and DynamoDB Streams · ShortSingh