I hosted a server, in my bedroom back in the late 90s. By server, I mean a desktop running Slack, connected to the internet and allowing me to SSH into it. It could recover just fine from a power outage, but unfortunately due to a RAM issue it would just randomly die - and RAM just wasn't something the local computer store was ready to bring in.

Enter my Lego Mindstorm. I effectively built a box, on wheels with a big thick stick pointing out I loaded that guy up with NQC - built a small application for my Palm Pilot. The modem on the palm pilot would pick up, accept a certain DTMF code, and fire via the infrared port a signal to the Mindstorm. The Mindstorm rolled forward X revolutions of the wheels so that the long arm hit the reboot button, rolled back.

Yes, eventually I bought RAM, but that eliminated all the fun.