+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.
In all the examples listed in the response, the inviter must explicitly be the owner of the house:
https://scifi.stackexchange.com/questions/65991/why-do-vampires-have-to-be-invited-in
Although that just leaves us with the question about who is considered the owner. I’m a renter, so would that be me, or my landlord?
Fun fact: In German, this boils down to which translation of “owner” is used. I’m the “Besitzer” of my apartment (I possess it), but not the “Eigentümer” (I cannot sell it).