Flatpak
flatpak — Build, install and run applications and runtimes
Flatpak (formerly xdg-app) is a software utility for software deployment and package management for Linux.
flatpak list
flatpak run org.mozilla.Thunderbird
flatpak info org.videolan.VLC
flatpak uninstall --unused -y
Applications files are contained in /var/lib/flatpak
User specific data is are stored in ~/.var/app
flatpak-list — List installed applications and/or runtimes
flatpak list
flatpak list --app
flatpak list --columns=name
Get what applications depend on which runtime component
flatpak list --app --columns=application,runtime
flatpak-override — Override application requirements
https://docs.flatpak.org/en/latest/flatpak-command-reference.html#flatpak-override
Overrides the application specified runtime requirements. This can be used to grant a sandboxed application more or less resources than it requested.
To display the current overrides (global, app specific, with/without --user
switch):
flatpak override --show
flatpak override --show org.videolan.VLC
flatpak override --user --show
flatpak override --user --show org.videolan.VLC
filesystem
Allow the application access to a subset of the filesystem.
flatpak override --user --filesystem=xdg-documents org.mozilla.firefox
flatpak override --user --filesystem=xdg-pictures org.mozilla.firefox
reset
Remove overrides. If an APP is given, remove the overrides for that application, otherwise remove the global overrides.
flatpak override --reset
flatpak override --reset org.mozilla.firefox
flatpak override --reset --user org.mozilla.firefox
Documentation: https://docs.flatpak.org/en/latest/flatpak-command-reference.html
Overrides files (edited by flatpak override
) are in:
- /var/lib/flatpak/overrides
- ~/.local/share/flatpak/overrides
flatpak-run — Run an application or open a shell in a runtime
https://docs.flatpak.org/en/latest/flatpak-command-reference.html#flatpak-run
flatpak run --runtime-version=3.38 org.gnucash.GnuCash
nohup flatpak run org.signal.Signal --start-in-tray &
GUI
flatseal
Integration in desktop
There are links to the applications there in /var/lib/flatpak/exports/bin
that can be used as preferred applications.
Debian
Use update-alternatives:
sudo update-alternatives --install /usr/bin/x-www-browser x-www-browser /var/lib/flatpak/exports/bin/org.mozilla.firefox 200
sudo update-alternatives --set x-www-browser /var/lib/flatpak/exports/bin/org.mozilla.firefox
https://wiki.debian.org/Firefox
Gnome
xdg-desktop-portal-gtk
Gtk implementation of xdg-desktop-portal on flatpak.
KDE/Qt
HiDPI:
QT_AUTO_SCREEN_SCALE_FACTOR=1
Add switches to an application
Copy the .desktop file needed from: /var/lib/flatpak/exports/share/applications
to ~/.local/share/applications
and edit it there to mask the global one.
Misc
Wayland
The flatpak build requires --socket=wayland
to be set for Wayland support to be enabled.
flatpak override --socket=wayland
flatpak override --env=MOZ_ENABLE_WAYLAND=1
flatpak override --env=VDPAU_DRIVER=radeonsi
flatpak override --user --socket=wayland org.videolan.VLC
flatpak override --user --show org.videolan.VLC
VLC
Weirdly, for VDPAU, vlc needs:
LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/GL/default/lib/vdpau/
even if… the path does not even exist on the system (??)