That's exactly what I want to do! I saw a post some years ago, someone had connected a ~ESP32 (or the like) to their coffee maker, connected it to the WiFi and made an app to remote controll it.
I want to do something similar. Prepp the coffee in the evening, set a time for the machine to start and then have fresh coffee when I wake up. I realise that I could just do all of this and just press the button when I wake up instead, but the idea of this makes me happy.
The whole point is to make it because I want to. As I said, I can just prepare my MoccaMaster the day before and the coffee will be one button press away in the morning.