You need to not only have physical access to the target computer, but you need to be able to boot from USB on that computer.

ETA: There also doesn’t appear to be any code to inspect on GitHub. It’s just a placeholder page with instructions to install the software, and they expect you to download it and just trust that it’s not hiding anything.

That just sounds like… modified Tails OS with baked in remote access, no? And why is it using netcat for that?

Anyway, I am not quite sure what it’s trying to achieve.