Flatpak

Flatpak is a technology for building and distributing applications with the goal of having a universal package format for all Linux distributions, it is similar to Snap, 
== Installation ==
=== Prerequisites ===
* 
* 
* 
* An implementation of xdg-desktop-portal, e.g. 
* Enable community repository. 
=== Installing Flatpak ===
Following instructions are from official guide: 
To install Flatpak run: 
Next you need to add a repository, for this guide we will use the recommended repository, Flathub. 
Flatpak is now ready to use immediately, however flatpak desktop entries will not appear until you restart your desktop session (i.e. by logging out and then logging back in)
== Usage ==
To get all of the available options to use with the flatpak command run: flatpak --help or flatpak -h
=== Search ===
To search for applications run flatpak --user search <appplicationname>
Example:
~$ flatpak --user search chromium
Name Description Application ID Version Branch Remotes
Chromium Web Browser The web browser from Chromium project org.chromium.Chromium 96.0.4664.93 stable flathub
Chromium B.S.U. Fast paced, arcade-style, top-scrolling space shooter net.sourceforge.chromium-bsu 0.9.16.1 stable flathub
ungoogled-chromium A lightweight approach to removing Google web service dependency com.github.Eloston.UngoogledChromium 96.0.4664.45 stable flathub
=== Install ===
To install a package run flatpak --user install <applicationname>
~$ flatpak --user install com.github.Eloston.UngoogledChromium
Looking for matches…
com.github.Eloston.UngoogledChromium permissions:
 ipc network cups pulseaudio wayland x11
 devices file access [1] dbus access [2] bus ownership [3] system dbus access [4]
 [1] /run/.heim_org.h5l.kcm-socket, home, xdg-run/pipewire-0
 [2] org.freedesktop.FileManager1, org.freedesktop.Notifications, org.freedesktop.secrets, org.gnome.SessionManager
 [3] org.mpris.MediaPlayer2.chromium.*
 [4] org.freedesktop.Avahi, org.freedesktop.UPower
 ID Branch Op Remote Download
 1. com.github.Eloston.UngoogledChromium.Codecs stable i flathub < 1.1 MB
 2. com.github.Eloston.UngoogledChromium.Locale stable i flathub < 112.8 kB
 3. com.github.Eloston.UngoogledChromium stable i flathub < 119.0 MB
Proceed with these changes to the system installation? [Y/n]:
or if you don't know or don't want to type the exact package name:
~$ flatpak --user install chromium
Looking for matches…
Similar refs found for ‘chromium’ in remote ‘flathub’ (system):
 1) app/net.sourceforge.chromium-bsu/x86_64/stable
 2) runtime/com.github.Eloston.UngoogledChromium.Codecs/x86_64/stable
 3) runtime/org.chromium.Chromium.Codecs/x86_64/stable
 4) app/org.chromium.Chromium/x86_64/stable
 5) app/com.github.Eloston.UngoogledChromium/x86_64/stable
Which do you want to use (0 to abort)? [0-5]:
=== Remove ===
To remove a package run: flatpak --user remove <applicationname>
~$ flatpak --user remove com.github.Eloston.UngoogledChromium
 ID Branch Op
 1. com.github.Eloston.UngoogledChromium stable r
 2. com.github.Eloston.UngoogledChromium.Codecs stable r
 3. com.github.Eloston.UngoogledChromium.Locale stable r
Proceed with these changes to the system installation? [Y/n]:
or if you don't know or don't want to type the exact package name:
~$ flatpak --user remove chromium
Similar installed refs found for ‘chromium’:
 1) app/com.github.Eloston.UngoogledChromium/x86_64/stable (system)
 2) runtime/com.github.Eloston.UngoogledChromium.Codecs/x86_64/stable (system)
 3) All of the above
Which do you want to use (0 to abort)? [0-3]:
== Troubleshooting ==
=== Permission errors ===
If you receive errors about permissions then you may need to add your user to the flatpak group.
=== Application launch errors === 
If the application is not starting try running it with on a terminal. If this yields an a dbus error starting with Failed to connect to session bus then you might solve this by adding 
in .
=== Fixing audio issues ===
Make sure that XDG_RUNTIME_DIR is properly configured and re-login if necessary.
When you launch a Flatpak you will need to start pulseaudio as well:
=== Unable to upload files ===
If you are unable to upload files from the host, this maybe due to Flatpak sandbox and you may have to manually add the authorization.
This can be done with the following commands:
Where ApplicationID is given by:
For example:
=== Error while opening repository ===
There is a current issue where sometimes flatpak will try to read the system-wide repository even if your install is with --user. This will result in failure to launch a flatpak application with the terminal reading ""error: While opening repository /var/lib/flatpak/repo: opening repo: opendir(/var/lib/flatpak/repo): No such file or directory". An alpine user has posted more information, as well as a workaround, at https://github.com/flatpak/flatpak/issues/5488
== See also ==
* Official setup Guide
* Flatpak - available runtimes
* Flatpak
* Flathub
* Winepak
Category:Package Manager
Category: Desktop