by3lish/wifiqrgen — reverse-engineered prompt

Build me a small Rust command line tool for Linux that makes it easy to share saved WiFi networks. When I run it, it should find the WiFi connections saved on my machine through NetworkManager, show me a numbered list, let me pick one, then print a scannable QR code right in the terminal so someone can scan it with their phone and connect without typing the password.

It should also support simple commands to list saved networks and to generate a QR code directly if I pass a network name. Please handle normal edge cases nicely, like no saved networks, missing nmcli, not enough permission to read the password, or an open network with no password. Keep it lightweight and easy to build with cargo, with clear terminal messages and a short README showing install and usage.