Setup AppCenter

AppCenter is a Flatpak remote that can be used on any Linux-based operating system that supports Flatpak.

Fedora

1. Add the AppCenter remote

   Flatpak is installed by default on Fedora Workstation, Fedora Silverblue, and Fedora Kinoite. To get started, all you need to do is download the AppCenter flatpakrepo file

   OR

   add the AppCenter remote via Terminal:

   flatpak remote-add --if-not-exists appcenter https://flatpak.elementary.io/repo.flatpakrepo

Ubuntu

1. Install Flatpak

   To install Flatpak on Ubuntu 18.10 (Cosmic Cuttlefish) or later, open the Terminal app and run:

   sudo apt install flatpak

2. Install GNOME Software Flatpak plugin

   The GNOME Software plugin makes it possible to install apps without needing the Terminal. To install, run:

   sudo apt install gnome-software-plugin-flatpak

   Note: Ubuntu distributes GNOME Software as a Snap in versions 20.04 to 23.04, and replaced it with Ubuntu App Center in 23.10 and newer—neither of which support installing Flatpak apps. Installing the Flatpak plugin will also install a deb version of GNOME Software, resulting in two "Software" apps being installed at the same time on Ubuntu 20.04 to 23.04, and a single new "Software" app on Ubuntu 23.10 and newer.

3. Add the AppCenter remote

   open the Terminal app and run:

   flatpak remote-add --if-not-exists appcenter https://flatpak.elementary.io/repo.flatpakrepo

4. Restart

   To complete setup, restart your system.