can I set up this program locally?

[gaoe6661]

can I set up this program on my server? I tried to search but no result(I do not know node.js)?

[zap8600]

Yes. I've done so myself. To start the server, I ran python3 -m http.server in my terminal.

[pflegende]

Is the Internet tunnel working?

[zap8600]

Is the Internet tunnel working?

You'll have to configure that yourself, but yes, it is. You can also run that locally if I'm correct.