Architecture

9 entries

2026

View case study
The City

I saw AI Office showing Claude Code agents as robots at desks, and wanted something that fitted the way I work. In The City, each project folder is a building and each team has a floor of robots, so I can see which ones need me.
- AI
- Architecture
- UX design
Source code
View case study
You Inc

I wanted one view of what I own, owe, earn and spend. I built You Inc around a ledger, then took the accounts and billing back out so people could run it on their own machine.
- Architecture
- Data pipelines
- Finance
- Front-end development
- Self-hosted
- UX design
Source code
- 26 March 2026 Writing
  Splitting GPUShare into two services
  I split GPUShare’s accounts from the hardware services, then found the installer still pointed at a service I’d removed.
  - AI
  - Architecture
  - Economics
  - Self-hosted
Two layers: an always-on cloud layer holding accounts, ledger and invoices, and a home GPU host running Ollama and Blender that connects outbound through a tunnel with no open ports.
Idle GPU, billed at cost

Two services, one trust boundary

Always on

Accounts · ledger · invoices Reachable with your PC off

Outbound tunnel

No open ports The host connects out; nothing connects in

Your machine

Ollama · Blender Only while powered on

kWh rate × GPU watts = price. No markup.

Read the story
GPUShare

My desktop GPU sits idle most of the day. I built a way for friends to share it for local AI and rendering, with the limits of a home machine visible.
- AI
- Architecture
- Economics
- Front-end development
- Self-hosted
- UX design
Source code
- 21 March 2026 Writing
  Sharing my GPU with friends
  I built GPUShare around my desktop GPU. The accounts, routing and cost estimates ended up needing as much explanation as the hardware.
  - AI
  - Architecture
  - Economics
  - Self-hosted
- 20 January 2026 Writing
  Putting my Apple Health data in one place
  I brought my nutrition and activity data out of Apple Health and into Postgres, so I could compare the daily and weekly trends.
  - AI
  - Architecture
  - Data pipelines
View case study
HealthAgent

My nutrition and activity lived in different apps. I brought their Apple Health exports together so I could see the trends in one place.
- AI
- Architecture
- Data pipelines
- Front-end development
Source code

2025

- 21 August 2025 Writing Report
  Home Lab Architectural Study
  I ran public and private services on a Raspberry Pi 4, then tested the restore playbook. This report covers the constraints, the service layout and that recovery test.
  - Architecture
  - Self-hosted
A single 8GB Raspberry Pi reached by two paths: a Cloudflare Tunnel for public services and Tailscale for admin. A recovery restore was measured at 1 hour 45 minutes against a 2 hour target.
One 5W host, two doors

Raspberry Pi 4 · 8GB

Public

Cloudflare Tunnel Photos · files · calendar

Admin

Tailscale SSH · Postgres · SMB

Memory

7.26 GB allocated 9.25% headroom

Restore tested

1h 45m Under a 2h target

Read the write-up
Home Lab

What would happen if I lost the machine running my home services? I built a small server around that question, then tested a full recovery.
- Architecture
- Self-hosted