I have been keeping my gaming rig on the outside terrace/balcony covered from sunlight or rain, for the last 6 years. I run cables under window sill, using powered USB hub for peripherals. For comfort, enable BIOS option for "wake from sleep with USB keyboard". This removes heat source from the room, and fan noise is gone too.

This starts to get really tricky when you pair the multi-thousand dollars class computer that pumps out a kilowatt of heat under load with equally good monitor(s). I had a hard enough time finding quality DP cables getting 4k144 HDR to go 2 meters to reach across the desk, none of the 3 meter ones I tried at the time worked. 8k120 HDR to the TV was the same on HDMI.

>10 Gbps USB/Thunderbolt are also a pain longer than a desk's length away but not the end of the world. Things like the power button are the easiest, just pop them into some single pin jumper extenders and you're good to go for any reasonable distance.

> I wonder whether there's a way to extend the power button.

Any pair of wires will do...