Articles
Short, practical pieces on building finance tools that hold up in an audit. Every figure comes with the working, so you can check it yourself.
All articles
| Article | Published |
|---|---|
| Money is never a floatWhy 0.1 + 0.2 is not 0.3 in code, what it did to 40,000 test invoice lines, and the one rule that prevents it. | 16 October 2026 |