

HA isn’t the only option. I think there’s two other open source smarthome solutions out there(?) And you could probably do with just an MQTT broker and a Python script, or something like that…
But HA isn’t a bad choice. They’re doing a phenomenal job. And related projects like ESPHome make it really easy to integrate microcontrollers. And if you want to do more smarthome stuff, it has a plethora of features, integrations, an app…
Extra hardware isn’t absolutely necessary. I have one server at home which does NAS, and I use 4GB of it’s RAM to run a virtual machine with Home Assistant. That’s enough for it, including a bunch of Addons.




I think there’s a lot of nuance here. I mean the Fediverse isn’t super efficient. But it manages to do what it’s supposed to do. And it really depends. Which Fediverse software. How many people are on those servers, how are they distributed. Do groups of people mingle on certain servers. Do they all subscribe to all the same content out there. Are there really big groups on servers with happen to have a slow internet connection… And then of course can we come up with improvements if we need to.
I think we’re going to find out once (or if) the Fediverse grows substantially. Some design decisions of the Fediverse are indeed a bit of a challenge for unlimited growth. Oftentimes technical challenges can be overcome, though. With clever solutions. Or things turn ot differently than we anticipated. So I don’t think there’s a good practical and straightforward answer to the question.