Flatpak Basic commands

Flatpak is a  packaging  format similar to exe files in  windows. With flatpak we don't have to hunt down libraries or having compilation nightmares. Apart from Flatpak there is also Appimage, Ubuntu Snap. So we will see some basic commands. 

i.First install flatpak for debian.

apt-get install flatpak

ii.   To install apps first we have to add a repository called flathub.

flatpak remote-add --if-not-exists  flathub 

https://dl.flathub.org/repo/flathub.flatpakrepo

iii. Before installing an  app we have to  install runtimes. Runtimes are basic libraries that are needed for an app to run. The available runtimes comes from freedesktop.org, GNOME  and Kde.

flatpak install flathub org.freedesktop.Platform
flatpak install flathub org.gnome.Platform
flatpak install flathub org.kde.Platform

For Gnome and Kde it will ask which version to install and always make sure you install the latest version. Also if you wish install the SDK

flatpak install flathub org.freedesktop.Sdk
flatpak install flathub org.gnome.Sdk
flatpak install flathub org.kde.Sdk 

See Flatpak available Runtimes

iv To list the apps in the remote directory

flatpak remote-ls  flathub

v. To list the apps installed in your system

flatpak list  --app

v[a]. To list the runtimes installed in your system

flatpak  list  --runtime

vi To install an app, for example VLCX
 
flatpak install org.com.videolan

vii. To uninstall an app 

flatpak uninstall org.com.videolan

viii. To update the apps

flatpak update

Flatpak command reference