flatpakcommand at the end of this step.
In order to install Airsonic with GNOME Software, launch GNOME Software, which is called just Software, search for Airsonic and finally click the Install button.
Alternatively, launch a Linux terminal emulator and type the command below and press the Enter key to install the package.
flatpak install nuvola eu.tiliado.NuvolaAppAirsonic
Alternatively, you can launch Airsonic from a terminal:
flatpak run eu.tiliado.NuvolaAppAirsonic