Snack App POS
Our PTA needed a simple way to run the snack stand at our elementary school’s open house. As a small school, we wanted to keep as much of the proceeds as possible instead of losing them to Square’s fees, so I built a point-of-sale web app for it with Claude. Working solo and in under 24 hours, I went from prompt to prototype to a live app with a Supabase database, deployed on Vercel. I scoped it to only what the stand needed that night, which kept it simple enough for anyone to pick up and use.
What the app could do:
Ring up sales and calculate change
View and edit individual transactions
Create inventory items
Track cash vs. electronic payments
Show how much of each item sold, to plan what to cut or stock up on for future events
Show the proceeds that go directly to the school
What’s next:
At the event, electronic payments still went through Square, and so many customers paid that way that the fees added up. The next update would add QR code payments through Venmo and Apple Pay, so people can pay electronically without the school losing part of each sale.
Screenshots
Prompt
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