Insights
Notes from building systems that have to be right.
Engineering essays on GovTech, AI, security and blockchain. Practical, specific, and free of company announcements.
- Blockchain
A signed audit log or a blockchain? How to choose
Both can make records tamper-evident. They solve different problems, and one of them is a lot more expensive to live with.
9 October 2026 · 2 min read
- GovTech
Multi-tenancy for public-sector software: three isolation models
When one platform has to serve many small institutions, the hardest decision is how strictly to keep their data apart.
6 October 2026 · 2 min read
- AI
Where AI belongs in a government workflow, and where it doesn’t
The useful uses of AI in public systems are unglamorous. The harmful ones are easy to build.
3 October 2026 · 2 min read
- Cybersecurity
Threat-modelling a QR-based field workflow
A QR code proves much less than it seems to. Here is what it takes to make a scan mean something.
29 September 2026 · 2 min read
- Product development
Role-based access that survives staff transfers
In institutions, people move every few years and the work stays. Permissions should follow the post, not the person.
25 September 2026 · 2 min read