Is there a connection between Mathematics and MathOverflow sites? Obviously topics are similar, but I mean something like: do questions posted on one site, perhaps with certain tags, automatically end up on the other one? I have seen in the past same questions posted on both sites at the same tim...

I've just set up an Apple desktop, and it occurred to me that I no longer need to keep plugging in my time machine into my laptop. I've plugged my hard drive into my desktop and set it up as a hosted time machine server according to these instructions: https://www.howtogeek.com/330288/how-to-se...