Installation

Requirements

MR3 is implemented by Java language. In ver. 26.4.3, Liberica Standard JDK 25 is embedded, so there is no need to install a JRE.

We confirmed MR3 following environemnt.

  • Windows 11

  • macOS Tahoe 26.4

How to Install

Windows

  1. Go to the MRCube page on the Microsoft Store and click the “View in Microsoft Store” button.

  2. Click the “Install” button.

  3. Run the shortcut created on your desktop.

macOS (dmg download)

  1. Download and extract mrcube-26.4.3.dmg from the download page and copy MRCube.app to the ‘Applications’ folder.

  2. Run MRCube.app.

  3. When the message ‘“MRCube” is an application downloaded from the Internet. Are you sure you want to open it?’ appears, click the “Open” button.

macOS (Homebrew)

  1. Install Homebrew.

  2. Run brew tap mr-3/tap and brew install --cask mrcube in Terminal.app.

  3. Launch “MRCube.app” from your Applications directory.

  4. When the message ‘“MRCube” is an application downloaded from the Internet. Are you sure you want to open it?’ appears, click the “Open” button.

How to Uninstall

Windows

Select the Apps menu from the Settings screen, select MRCube from the list of installed apps and uninstall it.

macOS

Delete MRCube.app from the applications folder.

Used libraries

MR3 uses the following libraries: