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# Local Daemon Store

Store URL format: `daemon`, `unix://`path

This store type accesses a Nix store by talking to a Nix daemon listening on the Unix domain socket path. The store pseudo-URL `daemon` is equivalent to `unix:///nix/var/nix/daemon-socket/socket`.

## Settings

- `log`

  directory where Nix stores log files.

  Default: `/nix/var/log/nix`

- `max-connection-age`

  Maximum age of a connection before it is closed.

  Default: `4294967295`

- `max-connections`

  Maximum number of concurrent connections to the Nix daemon.

  Default: `1`

- `path-info-cache-size`

  Size of the in-memory store path metadata cache.

  Default: `65536`

- `priority`

  Priority of this store when used as a substituter. A lower value means a higher priority.

  Default: `0`

- `real`

  Physical path of the Nix store.

  Default: `/nix/store`

- `root`

  Directory prefixed to all other paths.

  Default: ``

- `state`

  Directory where Nix stores state.

  Default: `/dummy`

- `store`

  Logical location of the Nix store, usually `/nix/store`. Note that you can only copy store paths between stores if they have the same `store` setting.

  Default: `/nix/store`

- `system-features`

  Optional system features available on the system this store uses to build derivations.

  Example: `"kvm"`

  Default: machine-specific

- `trusted`

  Whether paths from this store can be used as substitutes even if they are not signed by a key listed in the `trusted-public-keys` setting.

  Default: `false`

- `want-mass-query`

  Whether this store can be queried efficiently for path validity when used as a substituter.

  Default: `false`