xzhih/one-key-hidpi ? reverse-engineered prompt

Build me a simple macOS utility that lets a non Retina display use HiDPI mode so it shows up as a native scaled option in System Preferences.

I want it to be easy to run in two ways, either by downloading and double clicking a local script, or by pasting one command into Terminal that fetches and runs it. It should guide the user through enabling HiDPI, and also include a safer recovery path in case something goes wrong or the Mac has trouble waking up afterward.

Please make it feel like a practical one key setup, with clear prompts and a straightforward way to turn everything back off later. If you need to check current macOS details or best practices for display overrides, look them up online first. Keep it simple and focused on getting the display scaling working without making the user deal with a lot of manual steps.