Meta: about the book itself

Linking policy

We try to avoid links that easily become fragile.


  • Link to types to document the public API, but modify the link to use latest as the version.
  • Link to modules in the source code.
  • Create "named anchors" and embed source code directly.


  • Link to direct lines on github, even within a specific commit, unless you are trying to reference a historical piece of code ("how things were at the time").