+1 for Home Assistant
I have it running on a Pi 5 (although a Pi 4 is more then enough), with a 15€ USB ZigBee antenna from AliExpress (to connect IKEA devices).
The best thing about it is that it seamlessly integrates all devices with each other, so you can use cheap ZigBee buttons to control your Philipps Hue lightbulbs, for example.
To be fair, this is most likely because the pope is not well at all. It wasn’t even clear if he would be able to give the traditional easter blessing himself, which is significantly higher in the Vatican’s priority list than a meeting with the US second in line of succession.