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Step-by-step – Flatpak Ubuntu 21.04 Installation

March 8, 2021 | By the+gnu+linux+evangelist.

Installing

  1. 2. Enabling Flatpak Repo

    Then to Add Flatpak Repository for Ubuntu
    Execute:

    sudo add-apt-repository ppa:alexlarsson/flatpak

    And then to Refresh Apt Repos:

    sudo apt update

    Authenticate with the User Admin Pass.
    If Got “User is Not in Sudoers file” then see: How to Enable sudo.

    And if you Get a Missing Repo Issue then Amend it Manually with:

    sudo nano /etc/apt/sources.list.d/*flatpak*.list

    For instance changing ‘hirsute’ in ‘focal’!
    Ctrl+x to Save & Exit from nano Editor.

  2. 3. Installing Flatpak

    Finally, to Install Flatpak for Ubuntu Hirsute
    Simply play:

    sudo apt install flatpak

    Authenticate with the User Admin Pass.
    If Got “User is Not in Sudoers file” then see: How to Enable sudo.
    Again for the Desktop integration run:

    sudo apt install gnome-software-plugin-flatpak

    And with this latest setup on GNOME based you’ll be able to Install Flatpak Apps just Double-clicking on the downloaded flatpakref File.

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