Nix Daemon Command: Examples and Description

R""( # Examples * Run the daemon: ```console # nix daemon ``` * Run the daemon and listen on standard I/O instead of binding to a UNIX socket: ```console # nix daemon --stdio ``` * Run the daemon and force all connections to be trusted: ```console # nix daemon --force-trusted ``` * Run the daemon and force all connections to be untrusted: ```console # nix daemon --force-untrusted ``` * Run the daemon, listen on standard I/O, and force all connections to use Nix's default trust: ```console # nix daemon --stdio --default-trust ``` # Description This command runs the Nix daemon, which is a required component in multi-user Nix installations. It runs build tasks and other operations on the Nix store on behalf of non-root users. Usually you don't run the daemon directly; instead it's managed by a service management framework such as `systemd` on Linux, or `launchctl` on Darwin. Note that this daemon does not fork into the background. )""

This chunk describes the `nix daemon` command, which runs the essential Nix daemon for multi-user installations. The daemon performs build tasks and manages operations on the Nix store for non-root users. While typically managed by service frameworks like `systemd` or `launchctl`, examples demonstrate direct execution with options such as `--stdio` (listen on standard I/O) and various trust settings (`--force-trusted`, `--force-untrusted`, `--default-trust`). It's noted that the daemon does not fork into the background.