CPC Emulation
I know that using an emulator is anathema to some collectors of old machines but I'm more pragmatic about this. It's really convenient to play and test out old software on Mac using an emulator than to setup the CPC and wait for the tape to (maybe) load.
At the moment, my go to emulator for the Mac is the Retro Virtual Machine. It's a little fiddly to setup but I love the attention to detail and the copious artwork / photos of the old systems and hardware. Setup is dead simple and it's free to use.