Introduction to the Nix Store

1st chunk of `doc/manual/source/store/index.md`

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# Nix Store

The *Nix store* is an abstraction to store immutable file system data (such as software packages) that can have dependencies on other such data.

There are [multiple types of Nix stores](./types/index.md) with different capabilities, such as the default one on the [local filesystem](./types/local-store.md) (`/nix/store`) or [binary caches](./types/http-binary-cache-store.md).

Title: Introduction to the Nix Store

Summary

The Nix store is an abstraction for storing immutable filesystem data, like software packages, with dependencies. There are different types of Nix stores, including local filesystems and binary caches.