Guides and tutorials

Longer explanations of the formats, tokens and markup the tools deal with — written for people who need the detail, not a listicle.

Data formats

Why YAML quietly turns Norway into false

A country code, a version number and a timestamp walk into a config file. The type-inference rule behind one of the most persistent bugs in YAML, and the two characters that prevent it.

16 September 2026 · 4 min read