Nothing more than a little bit of code to detect when someone is online or offline. I don't know what you can do with it... give shoutouts maybe? Check out some of my other projects: https://scratch.mit.edu/users/--comfortable--/projects/
All by me, but I got the idea from looking at Welcome 2.0 - @-TheHacker- but I didn't look at the code, though later I found out the two scripts looked extremely similar.
