[wip] doc/stdenv/meta.chapter.md: document meta.categories

NixOS · Aug 24, 2023 · b45a1d3 · b45a1d3
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diff --git a/doc/stdenv/meta.chapter.md b/doc/stdenv/meta.chapter.md
@@ -244,6 +244,10 @@ Unfree package that cannot be redistributed. You can build it yourself, but you
 
 This package supplies unfree, redistributable firmware. This is a separate value from `unfree-redistributable` because not everybody cares whether firmware is free.
 
+## Categories {#sec-meta-categories}
+
+The `meta.categories` attribute of the package should contain a value from `lib.categories` set defined in [`nixpkgs/lib/categories-set.nix`](https://github.com/NixOS/nixpkgs/blob/master/lib/categories-set.nix).
+
 ## Source provenance {#sec-meta-sourceProvenance}
 
 The value of a package's `meta.sourceProvenance` attribute specifies the provenance of the package's derivation outputs.