# Install zzz with Homebrew, apk, Nix

Command-line tool to put Macs to sleep. Version 1 via Homebrew; verified 2026-07-10. Also installable with nix: nix profile install nixpkgs#zzz.

## Install

```sh
sudo av install brew:zzz
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install zzz
```

  Evidence: local Homebrew formula metadata

### Linux

- apk (92%):

```sh
sudo apk add zzz
```

  Evidence: Alpine Linux edge package indexes: zzz from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

- Nix (92%):

```sh
nix profile install nixpkgs#zzz
```

  Evidence: nixpkgs package indexes: pkgs/by-name/zz/zzz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Package facts

- **Package key:** brew:zzz
- **Package manager:** Homebrew
- **Version:** 1
- **Source summary:** Command-line tool to put Macs to sleep
- **Homepage:** <https://github.com/Orc/Zzz>
- **Repository:** <https://github.com/Orc/Zzz>
- **Last updated:** 2026-07-10T09:37:19-04:00
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- Zzz (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 1
## Project history and usage

Zzz is a small macOS command-line program that asks the operating system's power-management service to put the machine to sleep immediately.

### Project history

The project's manual page is dated 11 August 2011 and describes a single-purpose system utility authored by David Parsons. The upstream C source remains intentionally small: it locates the IOKit power-management service, calls `IOPMSleepSystem`, reports errors, and exits.

### Adoption history

The official README documents both traditional make-based installation into `/usr/local/bin` and Homebrew installation. This positions Zzz as a compact packaged convenience for shell users rather than a larger application or daemon.

### How it is used

Run `Zzz` with no arguments to request immediate sleep. The manual documents a zero exit status on success and a nonzero status on failure; no root access is required.

### Why package nerds care

Zzz is a characteristic micro-utility: a stable, memorable command packages a platform API call that would otherwise require custom C code or a less discoverable system workflow. Its makefile, manual page, C source, and Homebrew path exemplify the durable Unix packaging of tiny native tools.

### Timeline

- 2011-08-11: The Zzz manual page documents the macOS sleep command.
- Later upstream README: Traditional make installation and Homebrew installation are documented side by side.

### Related projects

- The README compares Zzz with SleepNow, while its implementation directly uses Apple's IOKit power-management interfaces.

### Sources

- <https://github.com/Orc/Zzz#readme>
- <https://github.com/Orc/Zzz/blob/main/Zzz.8>
- <https://github.com/Orc/Zzz/blob/main/Zzz.c>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Other Package-Manager Records

- Nix - zzz: normalized package name match | nixpkgs package indexes: pkgs/by-name/zz/zzz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - zzz - 0.2.0-r0: normalized package name match | Alpine Linux edge package indexes: zzz from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Suspend or hibernate your computer | https://github.com/jirutka/zzz
- apk - zzz-doc - 0.2.0-r0: normalized package name match | Alpine Linux edge package indexes: zzz-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Suspend or hibernate your computer (documentation) | https://github.com/jirutka/zzz


## Combined YAML source

View the package source record on GitHub. [combined/zzz.yml](https://github.com/mxcl/pkgdb/blob/main/combined/zzz.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph