nix-super/doc/manual/source/installation/index.md

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# Installation
This section describes how to install and configure Nix for first-time use.
The current recommended option on Linux and MacOS is [multi-user](#multi-user).
## Multi-user
This installation offers better sharing, improved isolation, and more security
over a single user installation.
This option requires either:
* Linux running systemd, with SELinux disabled
* MacOS
> **Updating to macOS 15 Sequoia**
>
> If you recently updated to macOS 15 Sequoia and are getting
> ```console
> error: the user '_nixbld1' in the group 'nixbld' does not exist
> ```
> when running Nix commands, refer to GitHub issue [NixOS/nix#10892](https://github.com/NixOS/nix/issues/10892) for instructions to fix your installation without reinstalling.
```console
$ curl -L https://nixos.org/nix/install | sh -s -- --daemon
```
## Single-user
> Single-user is not supported on Mac.
This installation has less requirements than the multi-user install, however it
cannot offer equivalent sharing, isolation, or security.
This option is suitable for systems without systemd.
```console
$ curl -L https://nixos.org/nix/install | sh -s -- --no-daemon
```
## Distributions
The Nix community maintains installers for several distributions.
They can be found in the [`nix-community/nix-installers`](https://github.com/nix-community/nix-installers) repository.