Fixing macOS' defective sleep mode with a Hammer (...Spoon)

This is kind of a followup post to Using a Mac Mini as a bedroom PC for Kodi, Moonlight and YouTube.

It's been nearly a year since I set up a Mac Mini as my one-stop-shop for all multimedia related tasks in the bedroom. It's generally worked well, and both streaming media, games, general web browsing and PC usage has been smooth. You're rolling around in bed, playing video games, watching YouTube, or maybe the freshest episode of Smiling Friends. But then you fall asleep, and the fun abruptly stops.

Using a Mac Mini as a bedroom PC for Kodi, Moonlight and YouTube

Issues in the bedroom

I have a wall-mounted TV in my bedroom. This TV has a PS4 and a PC hooked up to it. I use the PS4 to remote play my PS5 (which is situated in the living room), and in the past, have used the PC for Kodi/Jellyfin and YouTube in bed, using a USB remote control with support for moving the mouse cursor. Unfortunately, it doesn't do that very well, as the Wi-Fi adapter I have for it keeps presenting issues under Linux. No matter how much I re-compile and reenable the drivers, it just won't work properly, and will randomly cut out after a while. This also happens with several different adapters, so I've kinda just left it there, and used the PS4 to access the web UI of Jellyfin. This is not ideal, and I don't want to spend any more hours fighting with it.