# nyancat を Homebrew, apk, apt, dnf, Nix, pacman, zypper でインストール
nyancat のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。
## インストール
```sh
sudo av install brew:nyancat
```
追加のインストールコマンド:
### macOS
- Homebrew (100%):
```sh
brew install nyancat
```
証拠: local Homebrew formula metadata
### Linux
- apk (92%):
```sh
sudo apk add nyancat
```
証拠: Alpine Linux edge package indexes: nyancat from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
- Debian apt (92%):
```sh
sudo apt install nyancat
```
証拠: Debian stable package indexes: nyancat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
- dnf (92%):
```sh
sudo dnf install nyancat
```
証拠: Fedora Rawhide package metadata: nyancat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst
- Nix (92%):
```sh
nix profile install nixpkgs#nyancat
```
証拠: nixpkgs package indexes: pkgs/by-name/ny/nyancat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- pacman (92%):
```sh
sudo pacman -S nyancat
```
証拠: Arch Linux sync databases: nyancat from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
- zypper (92%):
```sh
sudo zypper install nyancat
```
証拠: openSUSE Tumbleweed package metadata: nyancat from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst
## パッケージ情報
- **パッケージキー:** brew:nyancat
- **パッケージマネージャ:** Homebrew
- **バージョン:** 1.5.2
- **ソース概要:** Renders an animated, color, ANSI-text loop of the Poptart Cat
- **ホームページ:**
- **リポジトリ:**
- **生成日時:** 2026-08-03T19:37:03+00:00
## 実行可能ファイル
- nyancat (エイリアス)
## インストール挙動
- Bottle: 利用不可
## バージョンと鮮度
- ページ生成日: 2026-08-03
- マネージャ版: 1.5.2
## プロジェクトの歴史と使われ方
nyancat is the terminal version of the Nyan Cat / Poptart Cat animation, rendered with ANSI escape sequences and usable either as a standalone program or as a telnet-service payload. The upstream repository describes it as the source for the Debian nyancat package.
### プロジェクトの歴史
The klange/nyancat repository was created on 2011-11-30, during the original wave of Nyan Cat terminal jokes. The README credits prguitarman for the original animation and licenses the code under the NCSA license.
### 採用の歴史
Unlike many joke programs, nyancat became widely packaged. Its README lists availability in Arch, Debian, Fedora, Gentoo, Mandriva, Ubuntu, FreeBSD, OpenBSD, and NetBSD, and Homebrew reported stable version 1.5.2 with 988 installs over the 365-day analytics window queried on 2026-07-01.
### 使われ方
Users run nyancat directly for a terminal animation, build it with make for source installs, or run nyancat -t from an inetd-style service to expose a telnet server. The public nyancat.dakko.us telnet server page says the original hosted service was shut down because of bandwidth limits, leaving mirrors and local installs as the practical paths.
### パッケージ好きにとっての重要性
nyancat is a canonical example of a harmless meme becoming a real distro package. It is useful for testing ANSI color support, terminal animation behavior, package-manager reach, and whether a packaging ecosystem has room for software whose value is delight rather than productivity.
### タイムライン
- 2011-11-30: klange/nyancat repository created.
- 2010s: packaged across major Linux and BSD distributions according to upstream README.
- 2026-07-01: Homebrew formula API reported stable version 1.5.2.
### Related projects
- Nyan Cat
- nyancat.dakko.us telnet server
- Debian nyancat package
### ソース
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## セキュリティノート
narrow executable package without higher-risk signals.
- **Geiger リスク:** グリーン / 低
- narrow executable package without higher-risk signals
## 他のパッケージマネージャ記録
- Debian apt - nyancat - 1.5.2-0.3: normalized package name match | Debian stable package indexes: nyancat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Animated terminal Nyancat | https://github.com/klange/nyancat
- Debian apt - nyancat-server - 1.5.2-0.3: normalized package name match | Debian stable package indexes: nyancat-server from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Animated terminal Nyancat server configurations | https://github.com/klange/nyancat
- Nix - nyancat: normalized package name match | nixpkgs package indexes: pkgs/by-name/ny/nyancat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - nyancat - 1.5.2-0.2: normalized package name match | Ubuntu 24.04 LTS package indexes: nyancat from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Animated terminal Nyancat | https://github.com/klange/nyancat
- Ubuntu apt - nyancat-server - 1.5.2-0.2: normalized package name match | Ubuntu 24.04 LTS package indexes: nyancat-server from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Animated terminal Nyancat server configurations | https://github.com/klange/nyancat
- apk - nyancat - 1.5.2-r1: normalized package name match | Alpine Linux edge package indexes: nyancat from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Nyancat in your terminal, rendered through ANSI escape sequences | https://nyancat.dakko.us/
- apk - nyancat-doc - 1.5.2-r1: normalized package name match | Alpine Linux edge package indexes: nyancat-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Nyancat in your terminal, rendered through ANSI escape sequences (documentation) | https://nyancat.dakko.us/
- dnf - nyancat - 1.5.2-19.fc45: normalized package name match | Fedora Rawhide package metadata: nyancat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Nyancat rendered in your terminal | https://github.com/klange/nyancat
- pacman - nyancat - 1.5.2-3: normalized package name match | Arch Linux sync databases: nyancat from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Nyancat rendered in your terminal. | https://nyancat.dakko.us/
- zypper - nyancat - 1.5.2-2.18: normalized package name match | openSUSE Tumbleweed package metadata: nyancat from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | The flying rainbow cat rendered in a terminal | https://github.com/klange/nyancat
## Combined YAML source
View the package source record on GitHub. [combined/nyancat.yml](https://github.com/mxcl/pkgdb/blob/main/combined/nyancat.yml)
## ソース
- 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