Welcome to the Rizo Rack

Infrastructure.
Energy. AI.
Occasionally
behaving.

I'm Jon. I build systems, self-host things, and occasionally discover why people pay someone else to do it.

A real rack. A hands-on energy project. A local AI lab. This is where the engineering gets written down.

01 / InfrastructureCompute, storage & recovery

02 / EnergyMeasurement before assumptions

03 / Local AIInference, speech & experiments

04 / SecurityEnzo is on it. Probably.

Inside the lab

Built to learn.
Kept running for real.

Not a showroom. Not a consultancy.
A collection of useful engineering problems.

A Proxmox cluster, a Dell PowerEdge fleet, TrueNAS storage and deliberate backup boundaries.

A Victron installation and custom software exploring the gap between seeing a number and proving an effect.

Local models, speech processing and an AI receptionist learning the awkward realities of telephone conversations.

Featured projects

Building a useful platform from enterprise hardware, with clear compute, storage and recovery roles.

Connecting telephony, speech and local inference while keeping call transfers behind a separate policy.

Engineering journal

A very small team

I'm Jon, the person behind the rack. Enzo heads up Security. The cat's department remains unclear, although thermal management seems likely.