I Walked Up To My Front Door — And It Knew Me
No keys. No phone. No cloud. No subscription. This is what happens when you build Tony Stark's JARVIS in a house in Oxford.
It's 11:47 PM. I've been in the garage for three hours, soldering relay boards and cursing at a breadboard. My hands smell like flux. I'm tired. I walk around the side of the house, past the bins, up to the front door.
I don't reach for my keys. I don't pull out my phone. I don't press a fob. I just... walk up.
The camera above the doorframe sees me. Two seconds. The lock clicks open. And a voice from inside the house says: "Welcome home, Shane. The back door is locked. Heating is at 21. You've got no alerts."
I walk in. The hallway light comes on. The door closes behind me. I didn't touch a single thing.
That's not a concept video. That's not a Kickstarter promise. That's my house. Right now. Today. And I built it in my garage.
This Is G-Lock JARVIS
For the last four months, I've been building something that the smart home industry said was impossible: a fully self-hosted, AI-powered smart home that works without the internet, without a cloud subscription, and without sending a single byte of your data to Amazon, Google, or Apple.
It's called G-Lock JARVIS. And it's not a product you buy in a box. It's a bespoke installation — cameras, voice nodes, a NAS brain, tamper sensors, and custom AI middleware — that turns your house into something Tony Stark would feel at home in.
But before I tell you how it works, let me tell you why I had to build it. Because the answer might make you look at your own house differently.
Why I Ripped Amazon And Google Out Of My Walls
Here's a fun exercise. Walk around your house and count the microphones.
I counted nine. Nine devices in my house that were always listening. An Amazon Echo in the kitchen. A Google Nest in the bedroom. A Ring camera on the door. A Nest thermostat that tracks when I'm home. A Hive hub. A smart TV. A baby monitor. A Fire Stick with Alexa built in. And a webcam I'd forgotten about on a shelf.
Nine microphones. Nine devices sending data to five different companies. And I was paying for the privilege — Ring Protect, Nest Aware, Apple iCloud, Hive Boost — around £47 a month in subscriptions just to keep my own house "smart."
Then I started reading the privacy policies. Really reading them. Not the summary — the actual legal text buried at the bottom. Here's what I found:
- Amazon keeps your voice recordings indefinitely unless you manually delete them. And they admit recordings are "reviewed by teams" to "improve Alexa."
- Google stores your motion data, voice data, and home occupancy patterns on their servers. They use it to serve you ads.
- Ring shares footage with police without a warrant in some jurisdictions. Over 2,000 police departments have access.
- If AWS goes down, your house stops working. December 2021, February 2023, June 2025. Three major AWS outages in four years. Smart homes went dark each time.
- Your facial recognition data — if you use it — lives on a corporate server. Not your server. Theirs. And if they're breached, your face is in the wild.
I'm a security engineer. I hold a UK patent on facial recognition technology (Patent Pending 2613849.5). And I was paying four companies to record everything that happened in my house. I felt like an idiot.
So I ripped it all out. Every cloud-connected device. Every subscription. Every corporate microphone. And I started building.
"The smart home industry has a privacy problem disguised as a convenience problem. Every 'smart' device you buy is a microphone you're paying to install in your own home — for someone else's benefit."
The Build: From Bricks To JARVIS
Here's what I installed in my own house — the same system we now install for clients across Oxfordshire:
Facial recognition cameras at the front door, back door, and garage. Each one runs on-device recognition — the processing happens right there on the camera, not on a server in Dublin. Walk up, get recognised, door opens. Under 2 seconds. Your face is the key, and it can't be cloned, shared, or stolen.
No phone required. No fob. No PIN pad. You just walk up to your own door and it lets you in. Try explaining that feeling to someone who's never experienced it. It's like the first time you used Face ID, but for your entire house.
Discreet voice nodes in each room. You say "JARVIS, dim the lights" and the lights dim. "JARVIS, lock the front door" and it locks. "JARVIS, what's the temperature outside?" and it tells you. Every command processed locally on the NAS. No audio leaves your house. Ever.
And here's the thing that hits you after a few days: you stop reaching for your phone. You stop opening apps. You just... talk. To your house. And it listens. And it does what you ask. Without checking with a server first.
Tamper sensors on every door and window. Forced entry triggers the siren instantly. SMS alerts with GPS coordinates hit your phone before the intruder is even inside. Critical events broadcast to everyone in the household. And if the internet is down? Cellular backup kicks in. Alerts still go out. The house stays armed.
This isn't a Ring camera that records the theft of your Amazon packages and emails you the video 20 minutes later. This is a system that detects the break-in attempt, sounds the siren, texts you and your partner, and locks every door — before they're through the door.
The whole system runs on a NAS sitting in your house. It processes voice, vision, automation, and alerts. No API costs. No per-query charges. No rate limits. No "we're experiencing high traffic, please try again later." Your house has its own brain, and it never phones home.
It also never goes down because Amazon's data centre had a bad day. Which, statistically, happens about twice a year now.
This is the part that makes people do a double take. The same face that unlocks my front door? It starts my car. And my e-bike. G-Lock Ride — our vehicle immobiliser — uses the same facial profile. One face. Your entire life. House, car, bike. One biometric identity. No keys in your pocket. No phone in your hand. Just you.
That unified middleware — the same facial recognition system bridging home and vehicle — is what the patent covers. It's not a concept. It's installed. It works. And nobody else is doing it.
What It Actually Feels Like To Live With JARVIS
I could give you a spec sheet. I could list protocols and compatibility matrices. But that's not why you're reading this. You want to know what it's like.
So here's a Tuesday. Nothing special. Just a normal day in my house:
I walk out of the bedroom. "JARVIS, morning." The kitchen lights come on at 40%. The kettle starts (smart plug, MQTT relay). The thermostat bumps to 21. The radio — my local station, not a Spotify ad-supported stream — starts playing through the kitchen speaker. I didn't set a routine. JARVIS learned this pattern over three weeks. Every weekday, same sequence. It just does it now.
I leave for the workshop. The front door camera watches me walk out. It recognises me — "Goodbye, Shane" — and arms the house. Lights off. Doors locked. Security active. I didn't say anything. I didn't tap an app. I just left.
The cleaner arrives. Her face is enrolled with a time-limited profile — Tuesdays only, 2-5 PM. The door recognises her, unlocks, and logs the entry. At 5:01 PM, her access auto-expires. If she came back on Wednesday, the door wouldn't open. I didn't have to remember to revoke anything. The system handles it.
I pull into the driveway. The gate opens — it sees my face through the car window. The garage door opens. I walk in. "Welcome home, Shane. No alerts today." The hallway light is already on. The heating has been at 21 since 5:30 — JARVIS knows I'm usually home by 7 and pre-warmed the house.
I've been in the garage all evening. I walk to the front door. It opens. "Welcome home, Shane. The back door is locked. Heating is at 21. You've got no alerts."
This is where we started. And this is the moment that still gets me, four months in. I walk up to my house, and it knows me. Not because a server in California ran a match. Because my house, my hardware, my brain — recognised my face and said welcome home.
The Cost: What You're Actually Paying For
Here's the part nobody talks about. The smart home industry doesn't sell you a product. They sell you a dependency.
Over 5 years, those subscriptions cost you £2,820. Over 10 years, £5,640. And at the end of it, you don't own anything. Cancel the subscriptions and your "smart" home becomes a regular home with some expensive paperweights on the shelves.
G-Lock JARVIS is a one-time installation. No monthly fees. No subscription. No "Pro plan" to unlock features that should have been included in the first place. You pay once. It's yours. Forever.
And the data? It stays in your house. On your NAS. Encrypted. Your voice never goes to a server. Your face never goes to a server. Your occupancy patterns, your daily routine, when you leave, when you come home — all of it stays on hardware you own. Because it's your house. Not Amazon's data collection endpoint.
JARVIS vs The Cloud Trap
| Your House | Amazon / Google / Apple | G-Lock JARVIS |
|---|---|---|
| Where processing happens | Their cloud servers | Your NAS, in your house |
| Internet required | Yes — stops working offline | No — fully offline operation |
| Monthly subscription | £30-£60/month, forever | £0. One-time installation. |
| Voice recordings | Stored on corporate servers | Never leave your house |
| Face data | Their servers, their terms | Your NAS, encrypted, yours |
| Server outage | House stops working | House keeps working |
| Vehicle integration | None | Same face starts your car/bike |
| Brand lock-in | One ecosystem, their rules | Matter/Zigbee/Z-Wave — any brand |
| Guest access | App-based, manual revoke | Face-enrolled, auto-expiring |
| 10-year total cost | £5,640+ in subscriptions | £0 after installation |
Why 2026 Is The Year This Became Possible
Three years ago, this couldn't exist. The AI models that power voice recognition and natural language processing were too heavy to run on consumer hardware. You needed cloud compute. You needed API calls. You needed Amazon or Google in the loop.
That's changed. In 2026, the AI runs on a NAS that costs less than a year of Nest Aware subscriptions. Facial recognition processes on-device — on the camera itself, not a server. Voice recognition happens locally. Natural language understanding happens locally. Text-to-speech happens locally.
The technology caught up to the idea. The only thing standing between you and a self-hosted smart home is someone to install it, configure it, and make it work as one unified system. That's what we do.
Is JARVIS Right For You?
Honestly? Maybe not. This isn't for everyone. Here's who it IS for:
- You want a smart home but you don't want Big Tech listening. If the idea of nine microphones sending data to five companies makes you uncomfortable, JARVIS is your answer.
- You're tired of subscriptions. If you've done the maths and realised you're paying £500+/year just to rent features that should be free, JARVIS is a one-time cost that replaces all of them.
- You want facial recognition without putting your face on a corporate server. If you want to walk up to your door and have it open — but you don't want Ring storing your biometric data — JARVIS processes everything on your hardware.
- You want it to work when the internet is down. If you've ever been locked out of your own house because AWS had a bad day, JARVIS doesn't have that problem.
- You want your house and your car on the same system. If you want one face that unlocks your front door AND starts your car, this is the only system that does it.
- You value privacy over convenience theatre. If "smart" to you means "works for me" not "works for Amazon's data team," this is your system.
Here's who it's NOT for:
- People who are happy paying £47/month for cloud features they barely use.
- People who don't care who's listening to their conversations.
- People who want a £50 plastic hockey puck from Argos, not a bespoke installation.
- People who trust Big Tech more than they trust themselves.
That's fine. This isn't mass market. It's premium. It's for people who want their house to be genuinely smart — not just connected to someone else's server.
Frequently Asked Questions
Does JARVIS work without internet?
Yes. Everything — facial recognition, voice control, automation, security — runs on your own NAS. Cellular backup (4G) handles SMS alerts during outages. You could cut the internet cable entirely and the house would still function normally.
Is there really no subscription?
No subscription. No monthly fee. No "Pro plan." No per-query charge. It's a one-time installation cost. The only ongoing cost is electricity for the NAS, which is negligible.
Where is my facial recognition data stored?
On your own NAS, encrypted. It never leaves your house. No cloud. No corporate server. No third-party access. You own the hardware, you own the data.
Can JARVIS control my existing smart devices?
Yes. JARVIS works with Matter, Zigbee, Z-Wave, and MQTT. If your lights, locks, thermostat, or blinds use any of those protocols — and most do in 2026 — JARVIS controls them. Brand doesn't matter. Your house doesn't care who made the light switch.
What happens if someone tries to break in?
Tamper sensors detect forced entry. The siren triggers instantly. SMS alerts with GPS coordinates go to your phone and every household member's phone. Cellular backup ensures alerts go out even if the internet is down. And the whole event is logged with timestamps on your NAS.
How long does installation take?
Depends on the package. Foundation (entry security) is 1-2 days. Smart Home (full voice + automation) is 3-5 days. Full JARVIS (house + vehicle + predictive AI) is 1-2 weeks. Every installation starts with a site survey — no two houses are the same.
Your House Is Waiting To Get Smart.
Book a free consultation. We'll survey your property, assess your needs, and give you a custom JARVIS installation plan. No obligation. No pressure. No salesperson — you'll talk to the person who built the system.
Book Your Consultation →The Bottom Line
I'm not going to tell you that G-Lock JARVIS is cheaper than an Echo and a Ring camera. It's not. It's a premium, bespoke installation. The Foundation package starts at £2,500. The full system goes up to £15,000.
But here's what I will tell you: over 10 years, you'd spend £5,640 on cloud subscriptions and still own nothing. Or you install JARVIS once, own it forever, and your house actually works — without phoning home, without monthly fees, without nine microphones recording your life for someone else's benefit.
I built this because I was tired of paying companies to listen to me. I built it because I have a patent on facial recognition and I wasn't going to let Ring own my face. I built it because I wanted my house to know me — not know me for ad targeting, but actually know me. Open the door when I come home. Turn the lights on when I walk in. Say welcome back. Mean it.
That's what JARVIS does. And it's available right now, installed by certified G-Lock trade installers, backed by UK Patent Pending 2613849.5.
Your house is waiting to get smart. The only question is whether you want it smart for you — or smart for Amazon.