yudai/gotty ? reverse-engineered prompt

Build me a small Go tool that lets me open a command line program in my browser, so I can share my terminal with other people through a web link.

I want to run something like a system monitor or shell command from the command line, then have the app start a local web server and show that terminal session in the browser with a nice terminal style display. It should support basic safety options too, like password protection, a random URL, and optional HTTPS so I can use it more securely when needed. If possible, let me choose the port, host, window title, and whether people can type into the terminal or just watch.

Please make it feel like a real usable tool, with clear startup behavior, helpful error messages, and a simple way to configure defaults from a config file. If you need current docs for any browser terminal details, look them up online and use the most reliable approach.