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reword section on Nix store

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Valentin Gagarin 2022-04-24 21:34:33 +02:00
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doc/manual/src/architecture/store/store.md
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# Store
A Nix store is a collection of *store objects* referred to by *store paths*.
Every store also has a "store directory path", which is a path prefix used for various purposes.
A Nix store is a collection of [store objects](objects.md) and associated operations.
There are many types of stores, but all of them at least respect this model.
Some however offer additional functionality.
These store objects can hold arbitrary data, and Nix makes no distinction if they are used as build inputs, build results, or build plans.
Store objects are accessible in a file system through [store paths](paths.md).
Every store has a *store directory*, which contains that store’s objects and is a prefix of their store paths.
It defaults to `/nix/store`, but is in principle arbitrary.
A Nix store can perform builds, that is, transform build inputs using instructions from the build plans into build outputs. It also keeps track of *references* between data and can therefore garbage-collect unused store objects.
## A Rosetta stone for the Nix store.