Ciao is used informally for “hello” and “goodbye” in Italian. I used it both ways in my post and also on FB and people were getting concerned I was shuffling off this digital mortal coil. I’m not going anywhere. I couldn’t leave if I tried and by god, have I tried.
Also, the link to Bella Ciao Ciao Ciao is an Italian anti-fascist resistance song from WWII. It’s catchy. You should give it a whirl.