Hah so, I have a couple of old Mac Minis in my homelab that I use very occassionally but would like to access over the Internet (say, via Tailscale etc.) Ideall

Hah so, I have a couple of old Mac Minis in my homelab that I use very occassionally but would like to access over the Internet (say, via Tailscale etc.) Ideally they'd be sleeping most of the time to conserve power, and only be kicked awake when needed, e.g. by a Wake-on-Lan packet. Unfortunately I would need another device active at all times to listen for commands and send that packet on demand. I was toying with the idea of using a Raspberry Pi connected to the router to perform that specific function, but I never got around to it. Funny to see that idea scaled up to a server rack!