Insights
Notes on architecture, infrastructure, security, and AI systems — written from work I have actually shipped.
Health Technology
8 min read
Four connectivity states, one clinic
Offline-first is usually modelled as a boolean. Building HealthOS taught me that a hospital needs at least four states, and that the user has to be able to see which one they are in.
Read articleHealth Technology
7 min read
Multi-tenancy when the tenants are hospitals
Three separations get conflated in multi-tenant systems: tenant, role, and workflow. Clinical software makes the cost of confusing them obvious.
Read articleAI Systems
8 min read
What an AI agent needs before you can leave it running
Notes from taking a retrieval-and-reasoning agent from a working demo to something that runs unattended and touches a blockchain.
Read articleSecurity & Infrastructure
7 min read
A risk score you cannot explain is noise
Modelling package dependencies as a graph for Argus Protocol, and why tracing the reason behind a score mattered more than the scoring itself.
Read articleSecurity & Infrastructure
6 min read
Security trade-offs for small teams
The controls I put in first when there is no security budget, no dedicated team, and real consequences if something goes wrong.
Read articleSystems Architecture
7 min read
When custom software is worth it
I have deployed bought systems across multiple healthcare sites and I am building a platform from scratch. The decision between the two is less about cost than about who owns the problem.
Read articleSystems Architecture
6 min read
Designing systems for unstable infrastructure
What I have learned running technology across sites where neither power nor connectivity can be assumed, and how that changes the architecture rather than just the ops plan.
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