Ubuntu 26.04 Flatpak install

1. Install Flatpak

$ sudo apt install flatpak

 

[ Execution log ]

gangserver@TCM73-U0424:~$ sudo apt install flatpak
Installing:                     
  flatpak

Installing dependencies:
  libcomposefs1  libostree-1-1

Suggested packages:
  malcontent-gui

Summary:
  Upgrading: 0, Installing: 3, Removing: 0, Not Upgrading: 0
  Download size: 1,871 kB
  Space needed: 7,329 kB / 20.8 GB available

Continue? [Y/n] y

(... Log omitted ...)

 

 

2. Install GNOME Software Flatpak plugin

$ sudo apt install gnome-software-plugin-flatpak

 

[ Execution log ]

gangserver@TCM73-U0424:~$ sudo apt install gnome-software-plugin-flatpak
Installing:                     
  gnome-software-plugin-flatpak

Installing dependencies:
  gnome-software  gnome-software-common  gnome-software-plugin-deb  libflatpak0

Suggested packages:
  gnome-software-plugin-snap

Summary:
  Upgrading: 0, Installing: 5, Removing: 0, Not Upgrading: 0
  Download size: 2,674 kB
  Space needed: 13.7 MB / 20.8 GB available

Continue? [Y/n] y

(... Log omitted ...)

 

 

3. Add the Flathub repository

$ flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

[ Execution log ]

gangserver@TCM73-U0424:~$ flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

Note that the directories 

'/var/lib/flatpak/exports/share'
'/home/gangserver/.local/share/flatpak/exports/share'

are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.


4. Restart your system

 

 

 

[ Reference ]

https://flathub.org/ko/setup/Ubuntu

Ubuntu Flathub Setup | Flathub