Tech, teams, and the bits in between.
I Parsed Every Law New Zealand Has Ever Passed
38,064 XML files, 241,456 amendment events, the oldest from 1872. What the entire NZ statute book looks like as data, and why counting 'a change' turned out to be the hard part.
Policy Whiplash
All 241,456 recorded changes to New Zealand law since 1872, parsed and lined up against the electoral calendar. Three parts and a live tracker, with the counting rules published next to every number.
Open the tracker · whiplash.jonno.nz-
01
Your Show HN dies in 7 hours
I scraped all 41,301 Show HN posts from the last year. Half the comments a launch will ever get arrive inside 7.2 hours, and success doesn't slow the clock.
5min 1,345 w -
02
The holes that kill you are the ones you never tested
The Swiss cheese model trains you to count slices. The holes that actually kill you are the ones you never tested.
5min 1,138 w -
03
What Happens When a Worm Drives Claude?
I wired a live C. elegans connectome into the control loop of a Claude coding agent, then watched what the worm did when the code broke.
5min 1,311 w -
04
The Laws of Human Nature
An interactive read-through of Robert Greene's 18 laws — 18 cards, full essays inside each.
12min 3,295 w -
1min 164 w
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06
The dent and the crater
On hardening as a senior leader, the cost of walls that read as wisdom, and the quiet work that keeps a dent from becoming a crater.
4min 845 w -
07
I Built a Read-Later Chrome Extension Because Pocket Died
Pocket shut down in July 2025. I needed somewhere to dump the articles I keep telling myself I'll read later. So I built a Chrome extension that does exactly that and nothing else. Local-only, no accounts, no tracking.
3min 717 w -
08
Product market fit isn't a stage, it's a gauntlet
PMF gets sold as a milestone. It's actually a gauntlet that bends founders, breaks teams, and quietly poisons technical decisions. Most of the damage isn't from missing PMF — it's from how you behave while looking for it.
6min 1,501 w -
09
Change management
On the personal version of change management — the long, weird middle bit between who you were and who you're becoming.
4min 1,004 w -
Predicting Crime in Aotearoa Series · 8 parts
- Intro Predicting Crime in Aotearoa 24.03.26
- Part 01 Wrangling a Million Crime Records 26.03.26
- Part 02 Giving Crime a Place on the Map 26.03.26
- Part 03 Crime as Video 26.03.26
- Part 04 What the Data Actually Shows 02.04.26
- Part 05 Can You Beat Last Month? 09.04.26
- Part 06 Teaching a Neural Network to Watch Crime Like Video 16.04.26
- Part 07 Three Ways to Look at Time 23.04.26
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10
What an hour of your attention is worth
You pay Big Tech about $1,000 a year in attention. Here's how to read the meter — and why building your own is suddenly cheaper than opting out.
14min 3,672 w -
11
Open-Source Agent That Teaches Claude Code Your Architecture
AI made software cheap to build but not cheap to scale. Evolutionary architecture with domain-aware AI agents is the missing piece.
6min 1,567 w -
12
OpenHealth – Chat with Apple Health Data, Anywhere
I built OpenHealth because Claude's and ChatGPT's Apple Health connectors are US-only. Drop your export.zip, get seven markdown files any LLM can read — browser, CLI, or phone-to-desktop over WebRTC.
5min 1,155 w -
13
The Future of Security Is an Open-Source Model That Detects and Acts on Threats
Anthropic's Glasswing is for enterprises with six-figure security budgets. The rest of us need open-source security agents that learn our systems and act autonomously.
7min 1,695 w -
14
What if your browser built the UI for you?
We're still shipping hand-crafted frontends while AI can generate entire interfaces. What if the browser itself generated the UI from an API manifest and your preferences?
5min 1,131 w -
NanoClaw Architecture Series · 2 parts
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15
How I Built an SMS Gateway with a $20 Android Phone
Turn any Android phone into a programmable SMS gateway for your SaaS — no per-message fees, no carrier contracts, no vendor lock-in.
8min 2,154 w -
16
Careers in the Self-Driving Codebase Era
The engineering career ladder was built for when code was expensive. Code is now cheap. What's valuable has fundamentally shifted.
6min 1,390 w -
17
Why LLMs waste half their brain
AI coding agents burn too many tool calls just figuring out where things are. I built codemap to fix that — cheap model indexes, cheap model selects, big model codes.
4min 956 w -
18
What if a Worm Could Make AI Agents Smarter?
Introducing c302 — a research project that uses the C. elegans roundworm's neural dynamics as a behavioural control layer for an LLM coding agent.
5min 1,281 w
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