vercel/hyper ? reverse-engineered prompt

I want a modern terminal app that looks great and is really easy to customize and extend. It should work across Windows, Mac, and Linux, and be built with web technologies like HTML, CSS, and JavaScript. It needs to feel fast and reliable for everyday command-line tasks. Users should be able to install themes and plugins, so the experience is really flexible and can be tailored to their preferences. Make sure the extension system is straightforward for community developers, and keep the interface clean and user-friendly. Check the latest docs online if you need more details about how other terminals handle extensions or theming.