Developer launches paid service using single HTML file and minimal Node.js server

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A developer built and deployed a functional paid service using just one static HTML file, a 45-line Node.js HTTP server, and Stripe Payment Links, deliberately avoiding frameworks, databases, or authentication systems. The setup runs on a local machine behind NAT, with a public tunnel forwarding traffic to a loopback server, eliminating the need for a public IP or firewall configuration. Stripe's hosted Payment Link handled card collection, checkout validation, and receipt delivery, while a custom field captured the buyer's website URL for the service being offered. A small polling worker monitors completed Checkout Sessions via the Stripe API and sends order acknowledgements to buyers, closing the only functional gap in the minimal stack. The project was framed as a speed-first experiment to validate a productized service before investing time in a full SaaS infrastructure.

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