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Opal is a free and open-sourceJavaFX application that can play relaxing music in the background.

You can create an executable installer by running thejpackage Gradle task on a Windows host:

./gradlew jpackage

Do note that you will need theWiX Toolset in order to createmsi packages.

You can create a portable image by running thejpackageImage Gradle task on a Windows host:

./gradlew jpackageImage

You can create anrpm, by running thejpackage Gradle task on a Linux host:

./gradlew jpackage

Do note that you will need therpm-build package in order to create anrpm.

You can create anAppImage by executing theAppImage Gradle task on a Linux host:

./gradlew AppImage

Do note that running this task will execute a shell script in order to download and run theappimagetool in order to create theAppImage file.

You can create a portable image by running thejpackageImage Gradle task on a Linux host:

./gradlew jpackageImage

You can create admg, by running thejpackage Gradle task on a macOS host:

./gradlew jpackage

You can create a portable image by running thejpackageImage Gradle task on a macOS host:

./gradlew jpackageImage

A couple of dependencies are required in order to build Opal. Some of which require a specific host machine,especially if you're targeting a specific platform and installation method.

The following dependencies are universal:

• JDK23
• JavaFX
• Gradle
• FasterXML/jackson
• badass-jlink-plugin
• Log4j2
• AtlantaFX

In order to build an installer (MSI) of Opal on Windows, you will need:

• WiX Toolset

In order to create anRPM, you will need to have the following package(s) installed:

• rpm-build (dnf install rpm-build)

All audio files have been provided byZapSplat.

All images have been provided byRemix Icon.

This library is maintained by CodeDead. You can find more about us using the following links:

• Website
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• Reddit

Copyright © 2025 CodeDead