A dead giveaway that I think it's AI-made (not necessarily a con) is the complexity of the UI and redundant information. Things like the green dot paired with "interface is up". It looks polished though.

I confirm that I vibe coded it.

It's not hand coded. I've built it because I've needed for my own purposes.

I've tried wg-easy, but I didn't like the docker approach because it implied to dramatically alter my setup. I just wanted something to manage my already existing setup, something simple and effective. And the coding agent was good enough to built quickly what I needed.

Not sure how you could tell that - the entire repo is 4 commits, all within the last 4 hours.