FunOS

Flatpak is a universal packaging system that allows users to install and run applications in an isolated environment, making it ideal for maintaining application compatibility across various Linux distributions. This article provides a step-by-step guide on installing Flatpak on FunOS, using it to install applications, and managing Flatpak apps effectively. Additionally, we’ll explore the advantages and disadvantages of Flatpak and why native packages (.deb) might sometimes be a better choice.

What is Flatpak?

Flatpak is a technology designed to distribute and run applications securely and reliably on Linux systems. Applications distributed as Flatpak are sandboxed, meaning they operate in a contained environment that doesn’t interfere with the host system. This approach enhances security and simplifies application deployment across different Linux distributions.

Advantages of Flatpak

• Cross-Distribution Support: Flatpak apps work on any Linux distribution that supports Flatpak.
• Sandboxing: Isolated environments protect the host system from application-related issues.
• Access to Latest Versions: Flatpak often provides the latest versions of applications regardless of the host system’s software repository.

Disadvantages of Flatpak

• Storage Requirements: Flatpak apps require more disk space due to bundled dependencies.
• Performance Impact: Applications may run slower due to the sandboxing overhead.
• Compatibility Issues: Some applications might not integrate seamlessly with the host system.

Why Prefer Native Packages Over Flatpak?

Whenever possible, it’s recommended to use native .deb packages on FunOS for the following reasons:

• Optimized Performance: Native packages are tailored for the system, ensuring better performance.
• Seamless Integration: Applications integrate better with the desktop environment and system settings.
• Minimal Resource Usage: Unlike Flatpak, native packages do not bundle redundant dependencies.

Installing Flatpak on FunOS

Step 1: Open Terminal

Choose one of the following methods to open the Terminal on FunOS:

• Click Menu in the lower-left corner, then select Terminal.
• Click the Terminal icon in the Tray.
• Use the keyboard shortcut Ctrl + Alt + T.

Step 2: Update the Package List

Run the following command to ensure the package list is up to date:

sudo apt update

Step 3: Install Flatpak

Install the Flatpak package by executing:

sudo apt install flatpak

Step 4: Add the Flathub Repository

Flathub is the official source of Flatpak applications. Add it to your system with the command:

flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

Step 5: Restart Your System

To ensure Flatpak is fully integrated, restart your system by running:

sudo reboot now

Alternatively, click Menu > Log Out > Reboot.

Installing Flatpak Applications

Step 1: Open a Web Browser

Navigate to the Flathub website at https://flathub.org/. Browse or search for the application you want to install.

Step 2: Find Installation Instructions

For example, to install the Brave browser, click the down arrow located to the right of the Install button. Flathub will display the installation command, such as:

Step 3: Run the Installation Command

Open the Terminal and execute the provided command.

flatpak install flathub com.brave.Browser

Step 4: Reload the Menu

To make the installed application appear in the FunOS menu:

• Click the Menu button in the lower-left corner.
• Click Reload menu.

Running Flatpak Applications

Option 1: Via CLI

Run the application using its Flatpak ID. For example, to launch Brave:

flatpak run com.brave.Browser

Option 2: Via GUI

Click the Menu button in the lower-left corner. You will find the installed application listed in the appropriate category.

Managing Flatpak Applications

Listing Installed Applications

To view all installed Flatpak applications, run:

flatpak list --app

Updating Applications

To update all installed Flatpak applications, execute:

flatpak update

Uninstalling Applications

To uninstall a Flatpak app, use the following command:

flatpak uninstall ID_of_the_application

Example:

flatpak uninstall com.brave.Browser

Afterward, reload the menu:

• Click the Menu button.
• Click Reload menu.

Conclusion

Flatpak is a powerful tool for installing and running applications in a secure and isolated environment on FunOS. While it provides access to a wide range of applications and ensures compatibility across distributions, it’s essential to consider its trade-offs compared to native packages. Whenever available, native .deb packages should be prioritized for better performance and system integration. With this guide, you are now equipped to install, manage, and use Flatpak applications effectively on FunOS.