Parchi: WhatsApp orders to bills for kirana stores, with Gemma 4 on the shop's own laptop
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built Neighbourhood kirana shops in Pune get messages like this on WhatsApp all evening: bhaiya 2 kilo atta, 1 amul butter chhota, 6 ande, ek maggi, aur paneer bhi The shopkeeper reads it, writes a parchi (a paper slip) by hand, looks up prices, adds them up on a calculator, types a reply, and sends his…
Pune's neighbourhood kirana shops are receiving WhatsApp messages from customers listing their grocery orders. Shopkeepers read these messages on their own laptops using the Parchi app, which interprets the Hinglish, Marathi, Hindi, or English messages and creates a bill by matching items to the shop's own price list. This process takes only a second and eliminates the risk of human error or an annoyed customer.
The app provides a printable packing slip, a UPI QR code, and an automatic reply via WhatsApp, all of which are generated locally on the shop's laptop. The app costs a small monthly fee, which is less than the cost of one incorrect bill per week, and there are no per-order fees. The app has been tested with a 26-item sample price list and has achieved a 100% accuracy rate in matching items and quantities from customer messages.
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