Automic VaultAutomic Vault

brew

Install openmsx with Homebrew, apt, dnf, Nix, winget

MSX emulator. Version 21.0 via Homebrew; verified 2026-06-22.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install openmsx

local Homebrew formula metadata

Linux

Debian aptverified · 92%
sudo apt install dmktools

Debian stable package indexes · dmktools · source: deb.debian.org

Fedora dnfverified · 92%
sudo dnf install openmsx

Fedora Rawhide package metadata · openmsx · source: dl.fedoraproject.org

Nixverified · 92%
nix profile install nixpkgs#openmsx

nixpkgs package indexes · pkgs/by-name/op/openmsx/package.nix · source: api.github.com

Windows

Windows Package Managerverified · 92%
winget install --id openMSX.openMSX -e

Windows Package Manager source index · openMSX.openMSX · source: cdn.winget.microsoft.com

overview

Package summary

MSX emulator

Commands and aliases

  • openmsx

history

Project history and usage

openMSX is a GPL MSX emulator whose project motto is that it aims for perfection. Its niche is accuracy-focused emulation of MSX machines, cartridges, extensions, disks, peripherals, and adjacent systems rather than simply booting a generic MSX profile.

Project history

The project developed as a long-running emulator with HTML manuals, release notes, and machine-description data distributed alongside the source. Its user manual describes a novel emulation model intended to approach near-perfect emulation, while the setup guide explains that real MSX machine definitions and extensions are described by XML configuration files.

The project history shows several infrastructure moves. The homepage records a move to Subversion on 2006-09-17, a move to Git on 2013-04-23 after about six and a half years on Subversion, and a 2015 move of code and tickets from SourceForge to GitHub after 14 years on SourceForge.

Adoption history

openMSX is adopted by retro-computing users who need detailed MSX hardware behavior, by MSX developers who test software against specific machine and extension combinations, and by preservation users who care about disk formats, timing, ROM checksums, and hardware models.

The project expanded beyond core MSX machines over time. Release notes and project documentation describe support for MSX turboR, MSX-MUSIC, GFX9000, Pioneer Palcom LaserDisc setups, Spectravideo SVI-318/SVI-328, ColecoVision, and Sega SG-1000.

How it is used

Users run openmsx directly, select or define an emulated machine, and provide legally obtained system ROMs when emulating real hardware. The setup guide explains that openMSX uses file pools and SHA-1 checksums to find required system ROMs, and that C-BIOS is bundled for default cartridge-oriented MSX use.

Developers and advanced users use Tcl scripting, debugging, reverse support, video/audio recording, trainers, and machine XML files to inspect software behavior. Version 20.0, released on 2024-09-22, integrated a new graphical interface and faster debugger into openMSX itself, replacing most separate Catapult and debugger workflows.

Why package nerds care

openMSX is interesting packaging because the executable is only part of the product. The package also carries data files describing machines and extensions, C-BIOS integration, manuals, release-history files, and runtime expectations around OpenGL/SDL and user-owned ROM pools.

Timeline

  • 2006-09-17: the project moved the main source tree to Subversion.
  • 2013-04-23: openMSX moved all projects to Git after about six and a half years on Subversion.
  • 2015-06-25: openMSX announced the move of code and tickets from SourceForge to GitHub and the web site to private hosting.
  • 2020-08-25: openMSX 16.0 migrated to SDL2 and Tcl 8.6 and changed to a simpler versioning scheme.
  • 2024-09-22: openMSX 20.0 integrated the new GUI and debugger into the emulator.
  • 2025-09-26: openMSX 21.0 added the setups concept and improved the new GUI.

Related projects

  • C-BIOS provides a freely distributable MSX-compatible BIOS used by default configurations. Catapult was the separate GUI companion and became deprecated after the built-in GUI. openMSX Debugger was a separate debugger that became largely superseded by the integrated debugger.

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 post-install hook is recorded in formula metadata.
  • Homebrew bottle metadata is available for 6 platform targets.
  • Installs with 9 runtime dependencies.

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

CommandKindExposureNote
openmsxcliglobal executable

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 generated2026-07-08
manager version21.0
manager updated2026-06-22
local dataok
upstreamnot checked
latest detectednot detected

https://github.com/openMSX/openMSX

install metadata

Package metadata

Package keybrew:openmsx
Version21.0
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/openmsx
Homepagehttps://openmsx.org/
Repositoryhttps://github.com/openMSX/openMSX
Upstream docshttps://openmsx.org/docs.html
LicenseGPL-2.0-or-later
Source archivehttps://github.com/openMSX/openMSX/releases/download/RELEASE_21_0/openmsx-21.0.tar.gz
Last updated2026-06-22T14:05:44-07:00
Pulseupdated
Dependenciesfreetype, glew, libogg, libpng, libvorbis, sdl2-compat, sdl2_ttf, tcl-tk, theora
Bottleavailable (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Nameopenmsx
Version Scheme0
Revision2
Head VersionHEAD
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • head
  • stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

dmktools 20.0+dfsg-1.2

tools for manipulating floppy disk images in the dmk format

https://openmsx.org

sudo apt install dmktools
  • Section: otherosfs
  • Architecture: amd64
  • Source Package: openmsx
  • 3 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Openmsx
Debian stable package indexes · deb.debian.org · Debian stable package indexes: dmktools from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

openmsx 20.0+dfsg-1.2

MSX emulator that aims for perfection

https://openmsx.org

sudo apt install openmsx
  • Section: otherosfs
  • Architecture: amd64
  • 17 dependencies
  • 1 provides
  • 3 optional deps
  • normalized package name match
  • Matched by: Openmsx
Debian stable package indexes · deb.debian.org · Debian stable package indexes: openmsx from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

openmsx-data 20.0+dfsg-1.2

datafiles for openMSX, an MSX emulator

https://openmsx.org

sudo apt install openmsx-data
  • Section: otherosfs
  • Architecture: all
  • Source Package: openmsx
  • 1 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Openmsx
Debian stable package indexes · deb.debian.org · Debian stable package indexes: openmsx-data from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

openmsx

nix profile install nixpkgs#openmsx
  • normalized package name match
  • Matched by: Openmsx
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/op/openmsx/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

dmktools 19.1+dfsg-1ubuntu3

tools for manipulating floppy disk images in the dmk format

https://openmsx.org

sudo apt install dmktools
  • Section: universe/otherosfs
  • Architecture: amd64
  • Source Package: openmsx
  • 3 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Openmsx
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: dmktools from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

openmsx 19.1+dfsg-1ubuntu3

MSX emulator that aims for perfection

https://openmsx.org

sudo apt install openmsx
  • Section: universe/otherosfs
  • Architecture: amd64
  • 16 dependencies
  • 1 provides
  • 3 optional deps
  • normalized package name match
  • Matched by: Openmsx
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: openmsx from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

openmsx-data 19.1+dfsg-1ubuntu3

datafiles for openMSX, an MSX emulator

https://openmsx.org

sudo apt install openmsx-data
  • Section: universe/otherosfs
  • Architecture: all
  • Source Package: openmsx
  • 1 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Openmsx
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: openmsx-data from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
dnf95%

openmsx 21.0-3.fc45

An emulator for the MSX home computer system

https://openmsx.org/

sudo dnf install openmsx
  • License: GPL-2.0-only
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: openmsx
  • 19 dependencies
  • 4 provides
  • normalized package name match
  • Matched by: Openmsx
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: openmsx from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
winget95%

openMSX.openMSX

winget install --id openMSX.openMSX -e
  • normalized package name match
  • Matched by: Openmsx
Windows Package Manager source index · cdn.winget.microsoft.com · Windows Package Manager source index: openMSX.openMSX from https://cdn.winget.microsoft.com/cache/source.msix

package graph

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

Related tools

  • freetypeRuntime dependency declared by Homebrew.
  • glewRuntime dependency declared by Homebrew.
  • libpngRuntime dependency declared by Homebrew.
  • sdl2-compatRuntime dependency declared by Homebrew.
  • tcl-tkRuntime dependency declared by Homebrew.

Same workflow

  • pc6001vxShares av.db curated category or tags: cli, emulator, games, retro-computing.
  • dosbox-stagingShares av.db curated category or tags: cli, emulator, games, retro-computing.
  • fs-uaeShares av.db curated category or tags: cli, emulator, games.
  • zboyShares av.db curated category or tags: cli, emulator, games.
  • dosbox-xShares av.db curated category or tags: cli, emulator, games, retro-computing.
  • hatariShares av.db curated category or tags: cli, emulator, games, retro-computing.

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.

Used sources

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