clemlatz/my-browser — reverse-engineered prompt

Build me a clean little web app called My Browser that tells visitors what browser and operating system they’re using, including the version when it can detect it.

I want it to be super simple and privacy friendly. No ads, no trackers, no cookies, no analytics, no popups. Just open the page and instantly see useful info like browser name, browser version, operating system, OS version if available, device type, and maybe the full user agent in a copyable box for support tickets.

Make it feel trustworthy and minimal, with clear labels, a nice responsive layout, and a short note explaining that everything is detected locally in the browser and not sent anywhere. Please turn the current starter app into the actual working app, keep it lightweight, and make sure it builds and runs normally. Look up current browser detection best practices if you need to.