I need an MVP-level web application that lets me sell downloadable software through a clean PHP + MySQL storefront. The build should stay lean and focused on the essentials so I can keep costs down and iterate later. Core flow 1. Public storefront that lists products pulled from a database. 2. Shopping cart and checkout that connect to one mainstream payment gateway—PayPal or Stripe are both fine; recommend whichever is quickest to implement securely. 3. Secure, time-limited download links delivered automatically after payment, plus a confirmation email that includes basic order details. Admin side • Simple login-protected panel to add or edit products (title, price, file, description) and view customer orders. • Ability to mark an order as fulfilled or refunded so the email and download link update accordingly. Deliverables • Full PHP source code, SQL dump for tables, and a concise README explaining setup on a standard LAMP stack. • Any third-party libraries or payment SDKs documented in the README. • Basic front-end styling with HTML, CSS, and a touch of JavaScript—just enough to look professional on desktop and mobile. I’m the sole owner/operator, so the code needs to be clear, well-commented, and easy for me to extend later. If you’ve built lightweight digital marketplaces before, especially with PayPal or Stripe, I’d love to see an example when you respond. Attached are the website files in a RAR file Attached is a PDF that guides the work requests