I got a little fanless atom PC from work that was being tossed because it “didn’t work.” It did work you would just have to apply pressure to it before boot because the CPU must have been coming unsoldered. I just stuck it on the bottom of like 30 pounds of gear and never had a problem.

Look into volumio to make a whole home music streaming solution. You can buy various pi Hats to get better DACs than the internal pi one.

This is a great question that is relevant for me this week. Been trying to set up a wireguard vpn and found I need a DDNS. Lots of good answers to look into in the comments. Thanks everyone.