# Install openmsx with Homebrew, apt, dnf, Nix, winget MSX emulator. Version 21.0 via Homebrew; verified 2026-06-22. ## Install ```sh sudo av install brew:openmsx ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install openmsx ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install dmktools ``` Evidence: Debian stable package indexes: dmktools from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - dnf (92%): ```sh sudo dnf install openmsx ``` Evidence: Fedora Rawhide package metadata: openmsx 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#openmsx ``` Evidence: nixpkgs package indexes: pkgs/by-name/op/openmsx/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ### Windows - winget (92%): ```sh winget install --id openMSX.openMSX -e ``` Evidence: Windows Package Manager source index: openMSX.openMSX from https://cdn.winget.microsoft.com/cache/source.msix ## Package facts - **Package key:** brew:openmsx - **Package manager:** Homebrew - **Package manager page:** - **Version:** 21.0 - **Source summary:** MSX emulator - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-2.0-or-later - **Source archive:** - **Last updated:** 2026-06-22T14:05:44-07:00 - **Generated:** 2026-07-09T07:20:21+00:00 ## Executables - openmsx (cli) - openmsx (alias) ## Dependencies - freetype - glew - libogg - libpng - libvorbis - sdl2-compat - sdl2_ttf - tcl-tk - theora ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-09 - Package-manager version: 21.0 - Package-manager updated: 2026-06-22 - Local data: ok - Upstream repository: https://github.com/openMSX/openMSX - info: No cached GitHub release or tag data was available. ## 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. ### Sources - - - - - - ## 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:** openmsx - **Version Scheme:** 0 - **Revision:** 2 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Debian apt - dmktools - 20.0+dfsg-1.2: normalized package name match | Debian stable package indexes: dmktools from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | tools for manipulating floppy disk images in the dmk format | https://openmsx.org - Debian apt - openmsx - 20.0+dfsg-1.2: normalized package name match | Debian stable package indexes: openmsx from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | MSX emulator that aims for perfection | https://openmsx.org - Debian apt - openmsx-data - 20.0+dfsg-1.2: normalized package name match | Debian stable package indexes: openmsx-data from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | datafiles for openMSX, an MSX emulator | https://openmsx.org - Nix - openmsx: normalized package name match | nixpkgs package indexes: pkgs/by-name/op/openmsx/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - dmktools - 19.1+dfsg-1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: dmktools from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | tools for manipulating floppy disk images in the dmk format | https://openmsx.org - Ubuntu apt - openmsx - 19.1+dfsg-1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: openmsx from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | MSX emulator that aims for perfection | https://openmsx.org - Ubuntu apt - openmsx-data - 19.1+dfsg-1ubuntu3: normalized package name match | Ubuntu 24.04 LTS package indexes: openmsx-data from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | datafiles for openMSX, an MSX emulator | https://openmsx.org - dnf - openmsx - 21.0-3.fc45: normalized package name match | Fedora Rawhide package metadata: openmsx from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | An emulator for the MSX home computer system | https://openmsx.org/ - winget - openMSX.openMSX: normalized package name match | Windows Package Manager source index: openMSX.openMSX from https://cdn.winget.microsoft.com/cache/source.msix ## Related links - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Game and emulation packages](https://www.automicvault.com/pkg/game-emulation-tools/) - Matched game or emulation metadata. - [Homebrew utility packages](https://www.automicvault.com/pkg/brew-utility-packages/) - Matched Homebrew package provider. - [freetype](https://www.automicvault.com/pkg/brew/freetype/) - Runtime dependency declared by Homebrew. - [glew](https://www.automicvault.com/pkg/brew/glew/) - Runtime dependency declared by Homebrew. - [libpng](https://www.automicvault.com/pkg/brew/libpng/) - Runtime dependency declared by Homebrew. - [sdl2-compat](https://www.automicvault.com/pkg/brew/sdl2-compat/) - Runtime dependency declared by Homebrew. - [tcl-tk](https://www.automicvault.com/pkg/brew/tcl-tk/) - Runtime dependency declared by Homebrew. - [pc6001vx](https://www.automicvault.com/pkg/brew/pc6001vx/) - Shares av.db curated category or tags: cli, emulator, games, retro-computing. - [dosbox-staging](https://www.automicvault.com/pkg/brew/dosbox-staging/) - Shares av.db curated category or tags: cli, emulator, games, retro-computing. - [fs-uae](https://www.automicvault.com/pkg/brew/fs-uae/) - Shares av.db curated category or tags: cli, emulator, games. - [zboy](https://www.automicvault.com/pkg/brew/zboy/) - Shares av.db curated category or tags: cli, emulator, games. - [dosbox-x](https://www.automicvault.com/pkg/brew/dosbox-x/) - Shares av.db curated category or tags: cli, emulator, games, retro-computing. - [hatari](https://www.automicvault.com/pkg/brew/hatari/) - Shares av.db curated category or tags: cli, emulator, games, retro-computing. - [huexpress](https://www.automicvault.com/pkg/brew/huexpress/) - Shares av.db curated category or tags: cli, emulator, games. - [mame](https://www.automicvault.com/pkg/brew/mame/) - Shares av.db curated category or tags: cli, emulator, games. ## Combined YAML source View the package source record on GitHub. [combined/openmsx.yml](https://github.com/automic-vault/db/blob/main/combined/openmsx.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