# Install cmigemo with Homebrew, apt, dnf, Nix

Migemo is a tool that supports Japanese incremental search with Romaji. Version 20110227 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:cmigemo
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install cmigemo
```

  Evidence: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install cmigemo
```

  Evidence: Debian stable package indexes: cmigemo from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install cmigemo
```

  Evidence: Fedora Rawhide package metadata: cmigemo from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#cmigemo
```

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

## Package facts

- **Package key:** brew:cmigemo
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/cmigemo>
- **Version:** 20110227
- **Source summary:** Migemo is a tool that supports Japanese incremental search with Romaji
- **Homepage:** <https://www.kaoriya.net/software/cmigemo>
- **Repository:** <https://github.com/koron/cmigemo>
- **Upstream docs:** <https://github.com/koron/cmigemo#readme>
- **License:** MIT
- **Source archive:** <https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/cmigemo/cmigemo-default-src-20110227.zip>
- **Generated:** 2026-07-08T07:18:31+00:00

## Executables

- cmigemo (cli)
- cmigemo (alias)

## Build dependencies

- nkf

## Install behavior

- Post-install hook: not defined
- Caveats: See also https://github.com/emacs-jp/migemo to use cmigemo with Emacs. You will have to save as migemo.el and put it in your load-path.
- Bottle: available on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 20110227
- Local data: ok
- Upstream repository: https://www.kaoriya.net/software/cmigemo
- info: No package-manager update timestamp was available.
- info: Release/tag comparison is only available for GitHub repositories.
## Project history and usage

C/Migemo is a C implementation of Migemo, a Japanese incremental-search tool that lets users type romanized text and search Japanese text without first converting the query to kana or kanji.

### Project history

The official Japanese README dates C/Migemo to 2001-08-15, identifies MURAOKA Taro (KoRoN) as author, and describes it as a C reimplementation of Ruby/Migemo.

The KaoriYa project page explains that Ruby/Migemo generates regular expressions for searching Japanese from romanized input, and that C/Migemo was published as a C library so it could be embedded in Vim.

### Adoption history

C/Migemo's adoption is concentrated in Japanese text-editing workflows, especially Vim and related incremental search integrations. The input package facts list it in Homebrew, Debian, Ubuntu, Fedora/dnf, and Nix, showing that it escaped a single editor bundle into Unix package repositories.

### How it is used

The official documentation describes building the library, generating or obtaining the dictionary, and using the `cmigemo` program with a Migemo dictionary. Its practical use is as a library or command that converts romanized Japanese search terms into regular expressions suitable for incremental search.

### Why package nerds care

C/Migemo is package-nerd interesting because it packages an editor-adjacent Japanese input/search workflow as a reusable C library and CLI. It also has dictionary-generation and encoding concerns, which are exactly the kind of locale-specific details that package maintainers have to make reproducible across Unix systems.

### Timeline

- 2001-08-15: C/Migemo documented as starting date in the official README.
- 2013-01: GitHub repository created.
- 2022: GitHub repository shows recent source updates in the current metadata.
- 2025: KaoriYa site still lists C/Migemo and points to the GitHub source repository.

### Related projects

- C/Migemo is explicitly related to Ruby/Migemo, Vim, SKK dictionaries, and Japanese incremental search tooling.

### Sources

- <https://www.kaoriya.net/software/cmigemo>
- <https://github.com/koron/cmigemo/blob/master/doc/README_j.txt>
- <https://api.github.com/repos/koron/cmigemo>


## Security Notes

narrow executable package without higher-risk signals.

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

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** cmigemo
- **Version Scheme:** 0
- **Revision:** 0
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## Other Package-Manager Records

- Debian apt - cmigemo - 1:1.2+gh0.20220623-1+b2: normalized package name match | Debian stable package indexes: cmigemo from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Japanese incremental search tool written in C - binary | http://www.kaoriya.net/software/cmigemo/
- Debian apt - cmigemo-common - 1:1.2+gh0.20220623-1: normalized package name match | Debian stable package indexes: cmigemo-common from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Japanese incremental search tool written in C - common files | http://www.kaoriya.net/software/cmigemo/
- Debian apt - libmigemo-dev - 1:1.2+gh0.20220623-1+b2: normalized package name match | Debian stable package indexes: libmigemo-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Japanese incremental search tool written in C - development binaries | http://www.kaoriya.net/software/cmigemo/
- Debian apt - libmigemo1 - 1:1.2+gh0.20220623-1+b2: normalized package name match | Debian stable package indexes: libmigemo1 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Japanese incremental search tool written in C - library | http://www.kaoriya.net/software/cmigemo/
- Debian apt - vim-migemo - 1:1.2+gh0.20220623-1: normalized package name match | Debian stable package indexes: vim-migemo from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | VIM plugin for C/Migemo | http://www.kaoriya.net/software/cmigemo/
- Nix - cmigemo: normalized package name match | nixpkgs package indexes: pkgs/by-name/cm/cmigemo/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - cmigemo - 1:1.2+gh0.20220623-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: cmigemo from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Japanese incremental search tool written in C - binary | http://www.kaoriya.net/software/cmigemo/
- Ubuntu apt - cmigemo-common - 1:1.2+gh0.20220623-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: cmigemo-common from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Japanese incremental search tool written in C - common files | http://www.kaoriya.net/software/cmigemo/
- Ubuntu apt - libmigemo-dev - 1:1.2+gh0.20220623-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libmigemo-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Japanese incremental search tool written in C - development binaries | http://www.kaoriya.net/software/cmigemo/
- Ubuntu apt - libmigemo1 - 1:1.2+gh0.20220623-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libmigemo1 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Japanese incremental search tool written in C - library | http://www.kaoriya.net/software/cmigemo/
- Ubuntu apt - vim-migemo - 1:1.2+gh0.20220623-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: vim-migemo from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | VIM plugin for C/Migemo | http://www.kaoriya.net/software/cmigemo/
- dnf - cmigemo - 1.3-0.22.date20110227.fc44: normalized package name match | Fedora Rawhide package metadata: cmigemo from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | C interface of Ruby/Migemo Japanese incremental search tool | http://www.kaoriya.net/software/cmigemo
- dnf - cmigemo-devel - 1.3-0.22.date20110227.fc44: normalized package name match | Fedora Rawhide package metadata: cmigemo-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | Development files for cmigemo | http://www.kaoriya.net/software/cmigemo


## Related links

- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata.
- [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [nkf](https://www.automicvault.com/pkg/brew/nkf/) - Build dependency declared by Homebrew.
- [align](https://www.automicvault.com/pkg/brew/align/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [bsdconv](https://www.automicvault.com/pkg/brew/bsdconv/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [cconv](https://www.automicvault.com/pkg/brew/cconv/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [decasify](https://www.automicvault.com/pkg/brew/decasify/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [desed](https://www.automicvault.com/pkg/brew/desed/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [enca](https://www.automicvault.com/pkg/brew/enca/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [enscript](https://www.automicvault.com/pkg/brew/enscript/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [fex](https://www.automicvault.com/pkg/brew/fex/) - Shares av.db curated category or tags: cli, developer-tools, text-processing.
- [rpl](https://www.automicvault.com/pkg/brew/rpl/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, processing, search.
- [skktools](https://www.automicvault.com/pkg/brew/skktools/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, japanese, processing.

## Combined YAML source

View the package source record on GitHub. [combined/cmigemo.yml](https://github.com/automic-vault/db/blob/main/combined/cmigemo.yml)


## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph
