# NixOS Manual {#book-nixos-manual}
## Version @NIXOS_VERSION@

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  this is the top-level structure file for the nixos manual.

  the manual structure extends the nixpkgs commonmark further with include
  blocks to allow better organization of input text. there are six types of
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```{=include=} preface
preface.md
```

```{=include=} parts
installation/installation.md
configuration/configuration.md
administration/running.md
development/development.md
```

```{=include=} chapters
contributing-to-this-manual.chapter.md
```

```{=include=} appendix
nixos-options.md
release-notes/release-notes.md
```