What is this and how does it work?

Did someone say it was?

How do I grant Jellyfin access to an external drive on Ubuntu?

I did the same for Facebook

Let’s not forget Led Zepplin referencing it in a song that’s still played every day on the radio.

Question: How do you run this without destroying your walls? I’m not planning on doing it, but I have an Ethernet connection that my landlord put in when he redid the basement, but I can’t picture how it would be done otherwise.