// Build log #001  ·  Founder journal  ·  Smart monitoring

We're building
a monitoring
business.
Follow along.

A father and son, a $980 Amazon cart, and a plan to turn open-source smart home hardware into a real professional service. Nothing is finished yet. That's the point.

$980.26 Starting hardware  ·  one cart  ·  prices current

This is the beginning of something, documented in public so you can learn from it -- or hire us when we're done proving it works.

My son is two weeks from graduating. Before he walks across that stage, we wanted something real to show: a serious technical project with a business model behind it, built on hardware we've already ordered and paid for.

The idea is straightforward. Professional smart monitoring installs -- security cameras, environmental sensors, leak detection, climate control, presence detection -- are genuinely useful for small businesses, rental properties, and homeowners. But getting them done right, integrated properly, and maintained over time is harder than it looks. Most people end up with consumer hardware tied to monthly cloud subscriptions, or they pay an integrator a significant premium for a proprietary system they can't modify themselves.

We think there's a better way. Open protocols. Local control. Custom software on top. And a service layer that makes it accessible to people who don't want to spend weeks figuring it out themselves.

// Honest expectations

We are not going to pretend this is a weekend project. Getting hardware like this properly configured -- Zigbee pairing, Z-Wave inclusion, camera streams, automation logic, and a coherent dashboard -- takes weeks of real work. We know that because we've done enough of this to understand what "properly" actually means.

We're documenting the journey for exactly that reason. If you want the real lessons and the real mistakes as we make them, follow along. If you'd rather hire someone who has already made them, that's what we're building toward.

Zigbee and Z-Wave don't go through anyone's cloud. They don't need your Wi-Fi password. They work when the internet goes down.

Every sensor in this build speaks one of two open mesh radio standards that have been tested across millions of installs worldwide. The cameras are PoE -- powered and networked over a single cable, recorded locally, no subscription required. The thermostat and valve actuator are Z-Wave. The sensors and smart plugs are Zigbee.

Tying it together is Home Assistant, open-source software that runs on your local network and connects everything into a single interface. It's free, it's powerful, and it's the foundation we're building custom software on top of -- purpose-built tooling for monitoring, alerting, and reporting that goes well beyond what any off-the-shelf app provides.

We're not just configuring someone else's system. We're building software to make it significantly more capable for real-world professional use.

The long-term value isn't the hardware -- anyone can order the same cart. It's the configuration expertise, the software we're developing, and the support that comes after. That's what a client actually pays for. The lessons we're able to share along the way are a side effect of doing the work in public.

The baseline hardware

Prices current as of ordering. One Amazon cart.

// Networking
NETGEAR GS108LP 8-Port Gigabit PoE+ Switch
~$89
Powers cameras over ethernet. No separate power runs.
// Cabling
Jadaol Cat 6 Ethernet 100ft, 10Gbps
~$18
Hardwired backbone. Reliability over convenience.
// Cameras
REOLINK 4-Port PoE Outdoor Camera Bundle
~$172
Local recording. No cloud subscription. Wired reliability.
// Zigbee hub
SONOFF Zigbee 3.0 USB Dongle Plus
~$40
Zigbee coordinator. Pairs with Home Assistant natively.
// Climate
Aqara Temp + Humidity Sensor (Zigbee)
~$49
Reliable environmental baseline monitoring.
// Water safety
Aqara Water Leak Sensor 3-pack
~$43
Under sinks, near HVAC, server rooms, basements.
// Access
Aqara Door + Window Sensor 3-pack
~$43
Every entry point accounted for.
// Presence
Aqara FP1E mmWave Presence Sensor
~$50
Radar-based. Detects stillness, not just motion.
// Climate control
Honeywell Home T6 Pro Z-Wave Thermostat
~$115
Z-Wave controlled. Automatable from presence data.
// Water shutoff
Zooz Z-Wave Long Range Valve Actuator
~$200
Auto-close when a leak sensor fires.
// Power monitoring
THiRDREALITY Smart Plugs Gen3 4-pack
~$45
Per-outlet energy monitoring via Zigbee.
// USB
AINOPE USB Extension 2-pack
~$8
Keeps the Zigbee dongle clear of USB 3.0 interference.
Amazon cart total
Hub/server not included -- separate post coming
$980.26
1
Hardware arrives. Configuration begins.
Zigbee and Z-Wave pairing, camera streams, initial Home Assistant setup. We'll document what's genuinely hard and what caught us off guard.
In progress
2
Post #2: Why these hardware choices?
A detailed look at the tradeoffs -- wired vs. wireless cameras, Zigbee vs. Z-Wave vs. Wi-Fi sensors, and why open protocols matter if you're building a service rather than a hobby project.
Coming soon
3
The software layer
Custom monitoring dashboards, alert logic, and reporting tools built on top of Home Assistant. This is where the service differentiates from a standard DIY install.
In development
4
First real install
Deploying everything for an actual client. The real test of whether this is a business or just a well-documented project.
The goal

Why follow this?

If you're a small business owner, property manager, or homeowner curious about what serious smart monitoring actually looks like under the hood, this is the unfiltered version. Real configuration time. Real tradeoffs. Real cost.

If you're in tech or evaluating what a new graduate can actually build, this is a live portfolio. Every decision gets documented as we make it.

And if you get to the end of this series and decide you'd rather have someone else handle the setup, that's exactly the service we're building.

The hardware is ordered. The work starts now.

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Founder journal Home Assistant Zigbee Z-Wave Smart monitoring Open source PoE cameras Build in public