I need a small Windows utility that sits in the background and accepts a call from a web page running in Chrome or Edge, then forwards the data straight to an Epson thermal printer without showing any OS dialogs. The page will generate a Point-of-Sale receipt; the bridge’s job is to take that payload—whether it arrives as raw ESC/POS, a small PDF, or plain text—and push it to the default thermal printer instantly. Core flow I have in mind 1. My JavaScript calls a local HTTP/WS endpoint (or custom URI scheme—open to what you feel is safest). 2. Your service receives the request, maps it to the selected Epson printer, and fires the job silently. 3. A minimal response (success / error) is returned so the browser app can acknowledge the print. Key expectations • Works reliably on Windows 10/11. • No pop-ups, print previews, or task-switching—completely silent. • Simple installer and an option in the tray or a config file where I can swap printer names if we replace hardware. • Source code handed over so I can re-sign or tweak later (C#, Node, Go, Rust—choose what you’re fastest with). • Brief README that shows: a) how to install, b) how to call it from JavaScript, and c) how to change printers. Acceptance test: I’ll load the provided sample HTML in Chrome and Edge, press “Print Receipt”, and watch a 58 mm Epson TM series printer cut the paper within two seconds and without any dialog. If you’ve tackled ESC/POS or silent printing bridges before, I’d love to see a quick note or link.