IkkiOcean/Jeevika ? reverse-engineered prompt

Build me a working prototype for Jeevika, a smart medicine vending machine that runs on a Raspberry Pi and lets people buy medicines without standing in a hospital queue.

I want a touch friendly screen flow with three main options, buy over the counter medicine, scan a doctor prescription QR code, and check health vitals. The OTC flow should show available medicines, let the user pick quantity, take payment, then trigger the dispensing mechanism. The prescription flow should scan a QR code, verify the prescription, show the medicines, collect payment, and dispense the right items. The vitals flow should read temperature, pulse, and SpO2 from connected sensors and show the results clearly on screen.

Please include a simple doctor side page for generating prescription QR codes, basic inventory tracking, and alerts for low stock. Make it feel like a real kiosk people can use easily, with a clean interface and clear status messages. If you need current library docs or hardware integration details, look them up online first.