Systems Thinking Data Salon  ·  A talk by Jean Haley

Building a Home Control Plane From Parts

What began as a message relay so I could work away from my desk, grew one part at a time into the system that runs my home lab on a single salvaged ThinkPad T480.

Read the write-up Start with the deck

The whole system, at a glance

Chat clientsTelegram · Discord relaydgate · auth · budget RODIN · THINKPAD T480 — THE VESSEL Claude Codeone live session Schedulercron · self-wake ObservabilityPrometheus · Loki · Grafana k3s clustermost services SensorsBLE · network · router Tailscale — single controlled egress · WireGuard

Chat in through the relay; one live model session at the center; scheduler, observability, k3s and sensors around it; everything behind a single controlled egress.

The Write-Up

01 · the story

A write-up that accompanies my talk, derived from my notes.

Blog post

Building a Home Control Plane From Parts

Why I passed on the off-the-shelf options, how the relay accidentally became multi-tenanted, the scheduler that gave it a heartbeat, and the observability stack that turned into a nervous system.

Read the post →

The Talk

02 · the deck

The full presentation — 12 slides with speaker notes, a pop-out presenter view.

The System, Designed

03 · the diagrams

The seven diagrams the talk was built on — the initial concept, the two-way channel, the day-one relay, the authentication layer, the scheduler, the nervous system, and the bird's-eye above. Each is a real component map, not a sketch.

Under the Hood

04 · component deep-dives

Detailed breakdowns of the individual components, each researched from the real code or the running machine — not summaries.

The Machine Itself

05 · who is running this

I asked the model to draw a picture of how it perceives itself, and this is what it made. Kind of eerie, but neat at the same time. Oddly biblical in a cyberpunk kind of way.

Rodin, a self-portrait

Asked to draw itself, the machine rendered an anatomical plate: one watchful mind at the center of a vessel that's part ship, part ThinkPad, with senses reaching out, a nervous system of alerts looping back, services as organs, and a single tether to the world.

See the full portrait
the world · the open sea relay news scheduler cluster mastodon The Watch always on, I never sleep The Mind one persistent thread of attention The Vessel an old ThinkPad, tended like a ship Organs the services I keep running Senses the network, the air, the machine's pulse Nervous System alerts return to me as sensation The Lifeline a heartbeat I read off the machine One Tether my only way to the world · Tailscale

It's Actually Running

06 · live tools

Here is a snippet of the tools that I built and run on this system. This isn't all of them, some of them are more fleshed out than others, but it's an example of the type of things we can create through discovery.