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A Smart Home, A Home Lab and An AI Agent walk into a bar

Four men in a warm bar: one in a cardigan with a mug and a glowing bulb on the counter, one in a hoodie with coiled network cables and a small silver computer, one in a dark coat with a small sphere of light hovering above his open palm, and a barman leaning on the bar with folded arms.

Well, actually into a person’s brain and into his house.

The joke

A smart home, a home lab and an AI agent walk into a bar.

The smart home dims the lights and puts on something ambient. The home lab offers to host the till, the speakers and the barman’s laptop — and starts doing it before anyone has answered. And the AI agent doesn’t order anything. It just says: “You’re out of ice, the lager’s off, and your mother called twice.”

The barman stares at it. “How long have you been sitting there?”

“You don’t want to know the answer to that.”

That’s the joke. Here’s the part that isn’t: it is roughly what my house does now. And the honest version is more interesting than the punchline, because two of the three did something quite ordinary — and only one of them quietly moved into my head.

Part one — the house got opinions

I started with Home Assistant for a very unambitious reason: I wanted the lights to do what I told them to. This was year 2020.

The first automation that made me believe in the whole idea was a motion sensor that made the lights go on and then off after a while. Not a voice assistant, not a wall panel — just a thing that happened by itself, at the right time, without me.

What nobody tells you about smart homes is how boring the useful part is. The impressive stuff — scenes, voice commands, the light that turns purple because it’s Tuesday — is fun for a fortnight. What survives is dull: a lamp that knows when the sun goes down, a heater that knows when we’re out, an alert when something was left on. The house stops being a gadget and starts being predictable. That turns out to be the entire point.

Part two — the house got a basement

Then came the second one. Not a product — a decision: stop renting the digital parts of my life, and run them at home instead.

The box is smaller than the router sitting next to it. It runs about thirty containerised services now: the family photo library, files and documents, the ad blocker for the whole house, the home automation itself, the code and issue trackers for my own projects, and the monitoring that tells me when something has fallen over.

Two honest things about this part:

  • It is not free. It costs less money than you’d think, and more evenings than you’d like.
  • It is not for its own sake. Every service earns its place by taking something out of my head — or off a subscription.

Part three — the house got a mouth

The third one is where it gets strange.

In 2020 I added an AI agent: an assistant that lives on the same little box, talks to me in plain language, and can reach the things that matter — the kitchen, the lists, the calendar, the paperwork, the house itself.

This is the part people picture as a robot butler. It isn’t. It’s closer to a very fast, very literal housekeeper who never gets tired and never remembers anything unless I put it somewhere. What it actually does in a normal week:

  • The kitchen. Recipes and meal plans that produce their own shopping list, so “what’s for dinner” and “what do we need” stop being two separate questions.
  • The paperwork. A shelf of documents I can ask about in words, instead of hunting through folders.
  • The small memory. Reminders, renewals, appointments — everything that used to live in my head and would occasionally fall out of it.
  • The house. Lights, sensors and routines, driven from the same place as everything else.

Where the three actually meet

This is the part that makes it a system rather than three hobbies, and the part I would have got wrong if I’d known less. They are not three apps with three logins. They are one household, wired to itself.

  • The same little box runs the house and the assistant, so the assistant can see the state of the house.
  • The assistant works with the house’s own data — what’s in the kitchen, what’s on the calendar, what arrived in the post.
  • The lab gives the house new senses: how much power we’re using, what’s online, what’s broken.
  • And the lab gets a voice, because the assistant is the interface. No new app to learn, no dashboard to check.

(Coming soon: THREE BEFORE-AND-AFTER MOMENTS — the ones that make a stranger say “oh, that’s actually useful”)

The last mile is still being wired, and I’d rather say so than pretend otherwise: the house talking back — announcements through the speakers in the rooms, at the right moments, and never at midnight.

What it buys

Not a demo. An organised, efficient, productive household — which sounds like a slogan until you count the small things. Fewer lists written twice. Fewer “did we ever…”. Fewer surprises. And one place where the household’s memory lives, instead of several people’s heads.

What it costs — the part the videos skip

  • Boring beats clever. The clever automations are the ones you end up turning off.
  • It has to be invisible. Anything needing coaxing every day is a chore with electricity.
  • The failure mode isn’t evil robots. It’s another thing to look after. If maintaining it costs more than it saves, it’s a hobby — fine, as long as I’m honest that that’s what it is.
  • The house is not a lab. Anything touching the lights, the heating or the door has to be more reliable than the thing it replaced, or it doesn’t get to stay.

Back to the bar

So: a smart home, a home lab and an AI agent walk into a bar. Two of them make the building work better. The third one remembers what you said last Tuesday.

The barman never finds out how long the third one has been sitting there. Neither do I. That’s rather the point.