# Install cahute with Homebrew

Library and set of utilities to interact with Casio calculators. Version 0.6 via Homebrew; verified 2026-07-04.

## Install

```sh
sudo av install brew:cahute
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install cahute
```

  Evidence: local Homebrew formula metadata

## Package facts

- **Package key:** brew:cahute
- **Package manager:** Homebrew
- **Version:** 0.6
- **Source summary:** Library and set of utilities to interact with Casio calculators
- **Homepage:** <https://cahute.org/>
- **Last updated:** 2026-07-04T13:13:40+09:00
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- p7 (alias)
- p7os (alias)
- p7screen (alias)
- xfer9860 (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 0.6
## Project history and usage

Cahute is a library and command-line toolkit for CASIO calculator communication protocols and file formats, covering serial and USB devices from the 1990s through modern models.

### Project history

The official README describes Cahute as communication and file-format handling tools for CASIO calculators and states that the GitLab project is the main repository for issues, release notes, merge requests, and collaboration. The public GitLab project was created in 2024 and the first visible tags run from 0.1 through 0.6 during that year.

Cahute's documentation is unusually broad for a niche hardware tool: it includes installation and build guides, command references for CaS, p7, p7os, p7screen, and xfer9860, file-format notes, USB detection, and protocol documentation for several generations of CASIO calculator protocols.

### Adoption history

Adoption is mostly in the calculator hacking, education-device, and retro-computing niche. The Homebrew package makes the tools available to macOS users who need calculator file transfer and protocol tools without building from source.

### How it is used

Users invoke the included CLIs to convert or inspect calculator files, communicate with calculators, transfer data, work with operating-system images or screen streaming, and configure CaS through casrc. On POSIX systems the documented casrc locations are ~/.casrc and a system file such as /etc/system.casrc.

### Why package nerds care

Cahute is package-nerd interesting because it packages a hardware-protocol archaeology project: a modern C library and tools that encode knowledge about calculator file formats and serial/USB protocols that would otherwise live in scattered hobbyist utilities.

### Timeline

- 2024: GitLab project created for Cahute.
- 2024: 0.1 tag published in March.
- 2024: 0.6 tag published in December.
- Present: Homebrew distributes Cahute as a CLI package.

### Related projects

- The documented tools include CaS, p7, p7os, p7screen, and xfer9860.
- The documentation covers CASIOLINK, Protocol 7.00, USB Mass Storage, and other CASIO calculator protocols and file formats.

### Sources

- <https://cahute.org/>
- <https://cahute.org/cli/cas.html>
- <https://cahute.org/topics/file-formats/casrc.html>
- <https://gitlab.com/api/v4/projects/cahute%2Fcahute>
- <https://gitlab.com/api/v4/projects/cahute%2Fcahute/repository/tags>
- <https://gitlab.com/cahute/cahute>
- <https://gitlab.com/cahute/cahute/-/raw/develop/README.rst>


## Security Notes

library-like package without higher-risk signals.

- **Geiger risk:** green / low
- library-like package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: ~/.casrc, /etc/system.casrc

## Combined YAML source

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


## Sources

- pkg.so package database
- Geiger risk classifier
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation
- cross-ecosystem install command graph