install

Additional install commands

macOS

Homebrewverified · 100%

brew install mruby

provider-native install command

overview

Package summary

Lightweight implementation of the Ruby language

Project links

Commands and aliases

mirb
mrbc
mruby
mruby-config
mruby-strip

history

Project history and usage

mruby is a lightweight, embeddable implementation of Ruby associated with Ruby creator Yukihiro Matsumoto and the mruby contributors. The official site describes it as complying with part of the ISO/IEC 30170 Ruby specification and designed to be linked into applications where MRI Ruby is too heavy. The project also acknowledges sponsorship by Japan's Ministry of Economy, Trade and Industry Regional Innovation Creation R&D Programs.

Project history

The toolchain is deliberately small and embeddable. It provides the mruby interpreter, the mirb interactive shell, and mrbc, a compiler that emits mruby bytecode and can generate bytecode as a C source file. The GitHub README describes linking mruby into C or C++ applications, using the bin tools as examples, and customizing builds with mrbgems.

How it is used

mruby's ecosystem role differs from the main Ruby implementation. It targets constrained environments, native applications, firmware-like embeddings, and products that want Ruby syntax without shipping a full MRI runtime. The release history on the official site records 1.0.0 in February 2014 and later 2.x, 3.x, and 4.x lines, reflecting a long-running compatibility and maintenance effort. Package managers expose the command-line tools and development library for developers embedding Ruby behavior or compiling scripts into bytecode.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew bottle metadata was recorded.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`mirb`	executable	indexed executable	Discovered from the local executable index.
`mrbc`	executable	indexed executable	Discovered from the local executable index.
`mruby`	executable	indexed executable	Discovered from the local executable index.
`mruby-config`	executable	indexed executable	Discovered from the local executable index.
`mruby-strip`	executable	indexed executable	Discovered from the local executable index.

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-03

manager version4.0.0

manager updated

local dataunknown

upstreamnot available

latest detectednot detected

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:mruby
Version	4.0.0
Package manager	Homebrew
Homepage	https://mruby.org/
Repository	https://github.com/mruby/mruby
Bottle	not recorded
Service	none declared

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/mruby.yml

Used sources

Geiger risk classifier
Nucleus package database
curated package history
pkgdb category and tag curation

Install mruby with Homebrew