H0: Hack the Zero Stack — June 2026

SynchroLink

Stop running out of stock. Start making more money.

SynchroLink watches your sales every day and tells you exactly what to order and when — so your shelves are always stocked and your money isn't tied up in products that don't sell.

$2,800/yr
revenue recovered per store
Works for
any retail business
5 min
to get started
No IT
needed

Built for all kinds of businesses

⛽Gas Stations🍔Restaurants🚚Food Trucks🛒Grocery Stores🍷Liquor Stores💊Pharmacies📱Electronics Shops🥐Bakeries & Cafés

Live demo runs on Main Street Grocery — a real Aurora PostgreSQL database with live inventory.

For distributors & wholesalers

Why the 2% platform fee pays for itself

Advance demand signals

See what stores will need before they order — plan your warehouse picks days ahead, not hours.

Automated invoice settlement

Digital POs are matched and settled instantly. No more chasing unpaid invoices or manual reconciliation.

Guaranteed order volume

AI-triggered reorders mean consistent, predictable purchase volume — not sporadic phone calls.

How it works under the hood

AWS-native pipeline — from your cash register to the dashboard in seconds

POS Connector
Square, Clover, Toast + 15 more
Secure Ingest
Verified, encrypted transfer
SQS FIFO
Per-store ordering
Aurora DB
Event ledger + cache
Dashboard
O(1) reads — no SUM()

One-click POS setup

Connects instantly to Square, Clover, Toast, Lightspeed, and 15+ major POS systems. No hardware changes, no IT team, no webhooks to configure.

Never lose track of stock again

Every sale, spoilage, or delivery is recorded in real-time. Your stock numbers are always up to date — no manual counting.

Instant alerts, plain English

When something is about to run out, you get a simple alert: "Order Gallon Milk by tonight." No tech jargon, no dashboards to dig through.

Smart from Day 1

Setup imports your last 30 days of sales history automatically. Predictive alerts are accurate from the moment you sign in — no waiting period.

Your store, your rules

Questions every smart store owner asks us

We'd be worried if you didn't ask. Here are the honest answers.

"Will this slow down my checkout register during a busy rush?"

No. SynchroLink runs in the background on a separate cloud server — completely separate from your checkout machine. Even if our app went offline, your register would keep working perfectly. Your customers never wait.

"My deal with Valley Fresh is cheap — are you going to show that price to my competitor down the street?"

Absolutely not. Your supplier prices are locked to your account only. Not even our own staff can see them. Each store is completely walled off from every other store — like separate bank accounts. Your competitive edge stays yours.

"What if your app glitches and orders 500 cases of milk by mistake?"

That can never happen. SynchroLink does not have permission to spend your money. Ever. It builds the order, shows you the quantities and the total cost, and stops. You review it, adjust anything you want, and only then you press Approve. You are always the last step.

"What exactly are you looking at in my business?"

Only what leaves your shelf: which product, how many units, and when. That's it. No customer names. No credit card numbers. No video cameras. No bank details. Think of it like a very smart tally counter — it counts products, nothing else.

"Once I know which products sell fast, can't I just text my vendor directly and skip the app?"

You could text. But here's what you'd lose: SynchroLink tracks how fast each product moves day by day, catches when a case of milk sold 3× faster than normal before you even notice the shelf is low, automatically hits your contracted price (not the walk-in price), and logs every delivery so you can spot if you're being shorted units. Texting a vendor gets you an order. SynchroLink gets you the right order at the right price before you run out.

Technical implementation details for engineers
SHA-256 HMAC webhook authAES-256 at restTLS 1.3 in transitAWS VPC tenant isolationAurora row-level tenant partitioningNo PII capturedNo data sold to third parties

Revenue model

$39/mo subscription + 2% wholesale GMV take-rate at 50 stores

MetricConservativeExpectedHigh-Growth
Merchant Subscription MRR$1,950$1,950$1,950
Avg Wholesale Spend / Store$2,000/mo$4,500/mo$7,500/mo
Platform GMV$100K/mo$225K/mo$375K/mo
Wholesaler Fee (2% GMV)$2,000/mo$4,500/mo$7,500/mo
Total combined revenue$3,950/mo$6,450/mo$9,450/mo
Built withNext.js 14TypeScriptTailwind CSSPrisma 6Aurora PostgreSQLAmazon SQS FIFOEventBridgeVercel

SynchroLink · Hackathon Demo · June 2026