It continues to work while the Mac is sleeping as long as you have an Apple TV, HomePod, or AirPort Express (as those devices run the bonjour sleep proxy).

I’m working on making the script run seamlessly on Linux as well. The only benefit to Linux is that one probably has an always on server or raspberry pi running 24/7.

The macOS version is good for those that have a Mac that’s plugged in at home even if it’s sleeping. Also resource utilization is 0.0% so not too shabby.