Application Management with Flatpak
Installing and Removing Flatpak#
Read this technote
Flatpak and Remotes#
A Flatpak remote is a local representation of an online Flatpak repository. It can be a statically defined ‘.flatpakrepo’ file, manually placed under ‘/etc/flatpak/repos.d/’, or a dynamically defined section of the active configuration file, which is the ‘/var/lib/flatpak/repo/config’ file.
The addition of a description of a Flatpak remote in the active configuration file is performed by the Flatpak tool, when the command flatpak remote-add is executed.
The local representation provides enough data for the Flatpak tool to search and download flatpak apps and runtimes.
A RHEL machine, registered and subscribed to the Red Hat Customer Portal has access to the official Red Hat repositories, including the RHEL Flatpak repository. The official Red Hat Flatpak repository is different from Flathub, Elementary, etc.; These are official Flatpak repositories but not released by Red Hat.
The lab VM is a fresh RHEL10 image and is registered and subscribed to the Red Hat Customer Portal:
user1@rhel10-vm2:~$ flatpak remotes
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ ls /etc/flatpak/remotes.d/rhel.flatpakrepo
ls: cannot access '/etc/flatpak/remotes.d/rhel.flatpakrepo': No such file or directory
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ find / -mindepth 1 -iname "*flatpakrepo*" -type f 2>/dev/null
/usr/share/man/man5/flatpakrepo.5.gz
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo subscription-manager status
[sudo] password for user1:
+-------------------------------------------+
System Status Details
+-------------------------------------------+
Overall Status: Registered
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo subscription-manager identity
[sudo] password for user1:
system identity: 1b32fa61-ed71-44ed-8471-922d70b57b49
name: rhel10-vm2
org name: <output masked>
org ID: <output masked>
user1@rhel10-vm2:~$
Adding a Flatpak remote#
Verify the local definition of the Flatpak remotes:
user1@rhel10-vm2:~$ flatpak remotes
user1@rhel10-vm2:~$
Add a Flatpak remote for the ‘Flathub’ repository#
Add a Flatpak remote. In the example, the remote is given the name ‘flathub’. Any name can be used though. The URL specifies the real location of the Flatpak remote, for instance the URL of the Flathub official remote:
user1@rhel10-vm2:~$ sudo flatpak remote-add flathub
error: LOCATION must be specified
See 'flatpak remote-add --help'
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo flatpak remote-add flathub https://flathub.org/repo.flathub.flatpakrepo
error: Can't load uri https://flathub.org/repo.flathub.flatpakrepo: Server returned status 404
user1@rhel10-vm2:~$ sudo flatpak remote-add flathub https://flathub.org/repo/flathub.flatpakrepo
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak remote
error: 'remote' is not a flatpak command. Did you mean 'remove'?
See 'flatpak --help'
user1@rhel10-vm2:~$ flatpak remotes
Name Options
flathub system
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo flatpak remote-add flathub \
> https://flathub.org/repo/flathub.flatpakrepo
error: Remote flathub already exists
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak remotes -d
Name Title URL Collection ID Subset Filter Priority Options Comment Description Homepage Icon
flathub Flathub https://dl.flathub.org/repo/ - - - 1 system Central repository… Central repository of… https://flathub.org/ https://dl.flathub.org/repo/logo.svg
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$
Verify the Flatpak remotes again. Distinguish user remotes from system remotes:
user1@rhel10-vm2:~$ flatpak remotes --user
user1@rhel10-vm2:~$ flatpak remotes --system
Name Options
flathub
user1@rhel10-vm2:~$
The ‘flathub’ Flatpak remote was manually added. Thus, its definition is stored in the active configuration file, namely ‘/var/lib/flatpak/repo/config’:
user1@rhel10-vm2:~$ cat /var/lib/flatpak/repo/config
[core]
repo_version=1
mode=bare-user-only
min-free-space-size=500MB
[remote "flathub"]
url=https://dl.flathub.org/repo/
xa.title=Flathub
gpg-verify=true
gpg-verify-summary=true
xa.comment=Central repository of Flatpak applications
xa.description=Central repository of Flatpak applications
xa.icon=https://dl.flathub.org/repo/logo.svg
xa.homepage=https://flathub.org/
user1@rhel10-vm2:~$
Manually creating additional Flatpak remotes with flatpak remote-add appends the new definitions to the ‘/var/lib/flatpak/repo/config’ file.
Add a Flatpak remote for the ‘Elementary’ Flatpak repository#
The official webpage https://flatpak.pkgs.org contains the list of official and thirdparty Flatpak repositories:
Clicking on any Flatpak app lands on its installation page. The URL for the Elementary Flatpak is mentioned in the ‘Install Howto’ section:
user1@rhel10-vm2:~$ sudo flatpak remote-add --system test-elementary https://flatpak.elementary.io/repo.flatpakrepo
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak remotes
Name Options
flathub system
test-elementary system
user1@rhel10-vm2:~$
Add a Flatpak remote for the RHEL Flatpak repository#
A similar procedure is followed to add the Red Hat official Flatpak remote:
user1@rhel10-vm2:~$ flatpak remote-add --if-not-exists rhel \
> https://flatpaks.redhat.io/rhel.flatpakrepo
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak remotes
Name Options
flathub system
rhel system,oci,no-gpg-verify
test-elementary system
user1@rhel10-vm2:~$
Searching for a Flatpak app#
To search for a Flatpak app in the configured flatpak remotes, use the flatpak search {APP-Name} command. The command is case insensitive and will prompt for administrative privileges:
user1@rhel10-vm2:~$ flatpak search gEdiT
Name Description Application ID Version Branch Remotes
gedit Text editor org.gnome.gedit 50.0 stable flathub
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak search gedit
Name Description Application ID Version Branch Remotes
gedit Text editor org.gnome.gedit 50.0 stable flathub
ThemeGenerator Generate Styles with Style. io.github.thiefmd.themegenerator 0.1.3 stable flathub
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak search --system Thunderbird
Name Description Application ID Version Branch Remotes
Thunder… Thunderbird is a free and open source… …ozilla.Thunderbird 140.13.0 stable rhel
Thunder… Thunderbird is a free and open source… …la.thunderbird_esr 140.13.0esr stable flathub
Thunder… Thunderbird is a free and open source… …ozilla.thunderbird 153.0.1 stable flathub
user1@rhel10-vm2:~$
Listing apps and runtimes contained in a Flatpak remote#
List the count of apps in the ‘flathub’ Flatpak remote:
user1@rhel10-vm2:~$ flatpak remote-ls flathub --app | wc -l
3445
Listing the count of runtimes in the ‘flathub’ Flatpak remote:
user1@rhel10-vm2:~$ flatpak remote-ls flathub --runtime | wc -l
2327
The sum of them gives the total count of elements in the ‘flathub’ Flatpak remote:
Wassim@linux:~$ flatpak remote-ls | wc -l
5772
List all runtimes stored on the ‘flathub’ Flatpak remote, in a pagination format:
user1@rhel10-vm2:~$ flatpak remote-ls flathub --runtime | more
HEIC app.fotema.Fotema.HEIC stable
Fightcade SteamOS Addon com.fightcade.Fightcade.Steamos stable
Wine com.fightcade.Fightcade.Wine stable
Clapper Enhancers com.github.rafostar.Clapper.Enhancers stable
OCR Afrikaans com.github.unrud.djpdf.OCR.Afr stable
OCR Amharic com.github.unrud.djpdf.OCR.Amh stable
OCR Arabic com.github.unrud.djpdf.OCR.Ara stable
OCR Assamese com.github.unrud.djpdf.OCR.Asm stable
OCR Azerbaijani com.github.unrud.djpdf.OCR.Aze stable
OCR Azerbaijani - Cyrilic com.github.unrud.djpdf.OCR.AzeCyrl stable
OCR Belarusian com.github.unrud.djpdf.OCR.Bel stable
OCR Bengali com.github.unrud.djpdf.OCR.Ben stable
OCR Tibetan com.github.unrud.djpdf.OCR.Bod stable
OCR Bosnian com.github.unrud.djpdf.OCR.Bos stable
OCR Breton com.github.unrud.djpdf.OCR.Bre stable
OCR Bulgarian com.github.unrud.djpdf.OCR.Bul stable
<output omitted>
List metadata of a Flatpak app#
Listing the metadata of a specific app using the flatpak remote-info command.
The metadata is stored in the Flatpak remotes.
In the following example, the Flatpak remote is ‘flathub’. The metadata is extracted on the basis of the app ID; To find out the app ID, launch the flatpak remote-ls flathub --app command and observe the second column int the output:
user1@rhel10-vm2:~$ flatpak remote-ls --app | more
Jan ai.jan.Jan 0.8.4 stable x86_64
LM Studio ai.lmstudio.lm-studio 0.4.18-1 stable x86_64
OpenCode ai.opencode.opencode 1.18.8 stable x86_64
AuthPass app.authpass.AuthPass 1.9.6_1904 stable x86_64
Blackboard Sync app.bbsync.BlackboardSync 0.18.0 stable x86_64
BlueBubbles app.bluebubbles.BlueBubbles 2.0.0.0 stable x86_64
Cantara app.cantara.Cantara 2.7.1 stable x86_64
CoMaps app.comaps.comaps 2026.06.15 stable x86_64
CrankBoy Manager app.crankboy.crankboy-manager 1.1.0 stable x86_64
Curo Calculator app.curocalc.calculator 2.6.2 stable x86_64
Ptyxis app.devsuite.Ptyxis 50.1 stable x86_64
Schemes app.devsuite.Schemes 46.0 stable x86_64
Biblioteca app.drey.Biblioteca 1.7 stable x86_64
Blurble app.drey.Blurble 0.4.0 stable x86_64
Damask app.drey.Damask 0.3.2 stable x86_64
Dialect app.drey.Dialect 2.6.1 stable x86_64
Ear Tag app.drey.EarTag 1.0.2 stable x86_64
Elastic app.drey.Elastic 1.0.3 stable x86_64
<output omitted>
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak remote-info flathub app.bluebubbles.BlueBubbles
BlueBubbles - BlueBubbles client for Linux
ID: app.bluebubbles.BlueBubbles
Ref: app/app.bluebubbles.BlueBubbles/x86_64/stable
Arch: x86_64
Branch: stable
Version: 2.0.0.0
License: Apache-2.0
Collection: org.flathub.Stable
Download: 32.1 MB
Installed: 84.0 MB
Runtime: org.gnome.Platform/x86_64/50
Sdk: org.gnome.Sdk/x86_64/50
Commit: faea5eb7c4ed3a53ffcdc668f79ed46b97310799e2569eb6094a184b5140bc7f
Parent: c8a413a540f8e411b72d9803aa61a49d648eba5ec8c4f12cf69bba939acd10b4
Subject: Merge pull request #87 from flathub/beta (ac4a61f1feb8)
Date: 2026-07-24 17:50:21 +0000
user1@rhel10-vm2:~$
Using application names does not work with flatpak remote-info; Application IDs must be used:
user1@rhel10-vm2:~$ flatpak search gedit
Name Description Application ID Version Branch Remotes
gedit Text editor org.gnome.gedit 50.0 stable flathub
ThemeGenerator Generate Styles with Style. io.github.thiefmd.themegenerator 0.1.3 stable flathub
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak remote-info org.gnome.gedit
error: REMOTE and REF must be specified
See 'flatpak remote-info --help'
user1@rhel10-vm2:~$ flatpak remote-info flathub org.gnome.gedit
gedit - Text editor
ID: org.gnome.gedit
Ref: app/org.gnome.gedit/x86_64/stable
Arch: x86_64
Branch: stable
Version: 50.0
License: GPL-2.0+
Collection: org.flathub.Stable
Download: 3.3 MB
Installed: 9.5 MB
Runtime: org.gnome.Platform/x86_64/50
Sdk: org.gnome.Sdk/x86_64/50
Commit: 05bd2e8bbdaf3da2507502bab7c0d5fc192450b5855edeea2325bea17e7d3ade
Parent: 493ed6521257010bca525cb6530dcb27a9b2391c6f733d0b30444c94df0ea90f
Subject: Update dependencies (824a6b87a759)
Date: 2026-06-26 17:20:55 +0000
user1@rhel10-vm2:~$
List Metadata of a Flatpak runtime#
Listing metadata of a runtime using its ID:
user1@rhel10-vm2:~$ flatpak remote-info flathub com.github.unrud.djpdf.OCR.Ara
OCR Arabic - OCR extension for Arabic (ara)
ID: com.github.unrud.djpdf.OCR.Ara
Ref: runtime/com.github.unrud.djpdf.OCR.Ara/x86_64/stable
Arch: x86_64
Branch: stable
License: GPL-3.0-or-later
Collection: org.flathub.Stable
Download: 1.7 MB
Installed: 2.5 MB
Commit: 20eae68c9687ee5ff5dc5c08d89210862acd1f671835db8b80f130032f925d62
Parent: 0996ad1305a94caa2920a240b0d3c13f780f4c7d76ad75c5aec5ba4732a160b8
Subject: Update runtime and dependencies (8ce3fb81efdd)
Date: 2026-07-26 04:07:12 +0000
user1@rhel10-vm2:~$
Installing a Flatpak app#
Installing a flatpak app using its name:
user1@rhel10-vm2:~$ rpm -qa gedit
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak install flathub gedit
Looking for matches…
Found ref ‘app/org.gnome.gedit/x86_64/stable’ in remote ‘flathub’ (system).
Use this ref? [Y/n]: Y
Required runtime for org.gnome.gedit/x86_64/stable (runtime/org.gnome.Platform/x86_64/50) found in remote flathub
Do you want to install it? [Y/n]: n
error: The application org.gnome.gedit/x86_64/stable requires the runtime org.gnome.Platform/x86_64/50 which is not installed
user1@rhel10-vm2:~$
Installing a flatpak app using the app ID:
user1@rhel10-vm2:~$ flatpak install flathub org.gnome.gedit
Looking for matches…
Required runtime for org.gnome.gedit/x86_64/stable (runtime/org.gnome.Platform/x86_64/50) found in remote flathub
Do you want to install it? [Y/n]: n
error: The application org.gnome.gedit/x86_64/stable requires the runtime org.gnome.Platform/x86_64/50 which is not installed
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak install flathub org.gnome.gedit
Looking for matches…
Required runtime for org.gnome.gedit/x86_64/stable (runtime/org.gnome.Platform/x86_64/50) found in remote flathub
Do you want to install it? [Y/n]: Y
org.gnome.gedit permissions:
ipc fallback-x11 wayland file access [1] dbus access [2]
[1] host, xdg-run/gvfsd
[2] org.gtk.vfs.*
ID Branch Op Remote Download
1. [✗] org.freedesktop.Platform.GL.default 25.08 i flathub 142.9 MB / 143.9 MB
2. [✓] org.freedesktop.Platform.GL.default 25.08-extra i flathub 142.9 MB / 144.0 MB
3. [✓] org.freedesktop.Platform.codecs-extra 25.08-extra i flathub 14.2 MB / 14.4 MB
4. [✓] org.gnome.Platform.Locale 50 i flathub 18.7 kB / 384.8 MB
5. [/] org.gnome.Platform 50 i flathub 1.0 kB / 409.7 MB
6. [ ] org.gnome.gedit.Locale stable i flathub < 3.3 MB (partial)
7. [ ] org.gnome.gedit stable i flathub < 3.3 MB
Warning: Flatpak system operation Deploy not allowed for user
==== AUTHENTICATING FOR org.freedesktop.Flatpak.app-install ====
Authentication is required to install software
Authenticating as: user1
Password:
Warning: Failed to get revokefs-fuse socket from system-helper: Flatpak system operation GetRevokefsFd not allowed for user
Warning: Failed to get revokefs-fuse socket from system-helper: Flatpak system operation GetRevokefsFd not allowed for user
Warning: Failed to get revokefs-fuse socket from system-helper: Flatpak system operation GetRevokefsFd not allowed for user
Both methods lead to installing the app. The first has an extra step which is to search on all remotes. The second method is interactive heavy; At many steps the user is prompted to enter his password.
Running flatpak install does not fail without sudo; The command will prompt for the password of the user account that launched the flatpak install command. Depending on the privileges of the user account, the installation of apps and runtime might or might not succeed.
Launching a Flatpak installation with ‘sudo’, while making sure that the app has been removed before:
user1@rhel10-vm2:~$ sudo flatpak install -y flathub org.gnome.gedit
[sudo] password for user1:
Looking for matches…
Required runtime for org.gnome.gedit/x86_64/stable (runtime/org.gnome.Platform/x86_64/50) found in remote flathub
org.gnome.gedit permissions:
ipc fallback-x11 wayland file access [1] dbus access [2]
[1] host, xdg-run/gvfsd
[2] org.gtk.vfs.*
ID Branch Op Remote Download
1. [✓] org.freedesktop.Platform.GL.default 25.08 i flathub 26.6 MB / 143.9 MB
2. [/] org.gnome.Platform 50 i flathub < 409.7 MB
3. [ ] org.gnome.gedit.Locale stable i flathub < 3.3 MB (partial)
4. [ ] org.gnome.gedit stable i flathub < 3.3 MB
Installing 2/4… █████▊ 29% 1.6 MB/s 02:02
Listing installed apps and runtimes from the ‘flathub’ Flatpak remote#
List everything that was installed locally using Flatpak from the Flatpak remotes:
user1@rhel10-vm2:~$ flatpak list
Name Application ID Version Branch Installation
Mesa org.freedesktop.Platform.GL.default 26.1.5 25.08 system
Mesa (Extra) org.freedesktop.Platform.GL.default 26.1.5 25.08-extra system
Codecs Extra Extension org.freedesktop.Platform.codecs-extra 25.08-extra system
GNOME Application Platform version 50 org.gnome.Platform 50 system
gedit org.gnome.gedit 50.0 stable system
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak list --columns=application
Application ID
org.freedesktop.Platform.GL.default
org.freedesktop.Platform.GL.default
org.freedesktop.Platform.codecs-extra
org.gnome.Platform
org.gnome.gedit
user1@rhel10-vm2:~$ flatpak list --columns=application,name,version
Application ID Name Version
org.freedesktop.Platform.GL.default Mesa 26.1.5
org.freedesktop.Platform.GL.default Mesa (Extra) 26.1.5
org.freedesktop.Platform.codecs-extra Codecs Extra Extension
org.gnome.Platform GNOME Application Platform version 50
org.gnome.gedit gedit 50.0
user1@rhel10-vm2:~$
List a specific installed app, e.g. ‘gedit’:
Wassim@linux:~$ flatpak list --app | grep gedit
Wassim@linux:~$
List only the apps or only the runtimes that were installed using Flatpak tool from the ‘flathub’ remote:
user1@rhel10-vm2:~$ flatpak list --app
Name Application ID Version Branch Installation
gedit org.gnome.gedit 50.0 stable system
user1@rhel10-vm2:~$ flatpak list --runtime
Name Application ID Version Branch Installation
Mesa org.freedesktop.Platform.GL.default 26.1.5 25.08 system
Mesa (Extra) org.freedesktop.Platform.GL.default 26.1.5 25.08-extra system
Codecs Extra Extension org.freedesktop.Platform.codecs-extra 25.08-extra system
GNOME Application Platform version 50 org.gnome.Platform 50 system
user1@rhel10-vm2:~$
Running an installed Flatpak app#
Wassim@linux:~$ flatpak list --app
Name Application ID Version Branch Installation
Ptyxis app.devsuite.Ptyxis 50.1 stable system
Brave com.brave.Browser 1.93.129 stable system
Sticky Notes com.vixalien.sticky 0.2.7 stable system
Cameractrls hu.irl.cameractrls 0.6.10 stable system
Document Viewer org.gnome.Evince 48.4 stable system
Extensions org.gnome.Extensions 50.0 stable system
Geary org.gnome.Geary 46.0 stable system
VLC org.videolan.VLC 3.0.23 stable system
Wassim@linux:~$ flatpak run 'Sticky Notes'
error: Invalid id Sticky Notes: Name can't contain
Wassim@linux:~$ flatpak run com.vixalien.sticky
Gjs-Console-Message: 12:11:52.589: Storing Notes at: /home/Wassim/.var/app/com.vixalien.sticky/data/com.vixalien.sticky/notes
(com.vixalien.sticky:2): Adwaita-WARNING **: 12:11:52.641: The resource style-dark.css is deprecated and shouldn't be used anymore. Use style.css with media queries instead.
As a result, the Sticky Notes app is launched and brought to the foreground.
#observation The flatpak run command requires the app ID to launch the app.
Open another shell and verify the Flatpak app process, process ID and runtime are readable:
Wassim@linux:~$ flatpak ps
Instance PID Application Runtime
2644966368 5131 hu.irl.cameractrls org.gnome.Platform
4272357336 14777 com.vixalien.sticky org.gnome.Platform
Wassim@linux:~$
It is worth noticing that the Flatpak tool is installing Gnome as part of installing graphical tools like ‘gedit’; The reason is that the guest VM has been initially installed without a GUI.
Trying to run the installed Flatpak app on a non-GUI machine generates an error:
user1@rhel10-vm2:~$ flatpak run org.gnome.gedit
(gedit:2): Gtk-WARNING **: 11:55:08.232: cannot open display:
user1@rhel10-vm2:~$
Terminating a Flatpak app#
Find the ID of the running Flatpak app, then terminate it:
Wassim@linux:~$ flatpak list --app | grep Note
Sticky Notes com.vixalien.sticky 0.2.7 stable system
Wassim@linux:~$
Wassim@linux:~$ flatpak ps | grep sticky
1287171304 16006 com.vixalien.sticky org.gnome.Platform
Wassim@linux:~$
There are two methods to kill the Flatpak app.
Method 1: using the Flatpak app ID#
Wassim@linux:~$ flatpak kill com.vixalien.sticky
Wassim@linux:~$
Method 2: using the Flatpak app instance number#
Wassim@linux:~$ flatpak ps
Instance PID Application Runtime
4156922352 5049 hu.irl.cameractrls org.gnome.Platform
78581066 16320 com.vixalien.sticky org.gnome.Platform
Wassim@linux:~$
Trying to kill the Flatpak app with its PID does not work:
Wassim@linux:~$ flatpak kill 16320
error: 16320 is not running
The instance number, which corresponds to the first column of the output of flatpak ps command, is used to kill the app:
Wassim@linux:~$
Wassim@linux:~$ flatpak kill 78581066
Wassim@linux:~$
Wassim@linux:~$ flatpak ps | grep sticky
Wassim@linux:~$
Wassim@linux:~$
Updating flatpak apps and runtimes#
Check for updates for all installed Flatpak apps and runtimes:
Wassim@linux:~$ flatpak update
Looking for updates…
Nothing to do.
Wassim@linux:~$
To look for updates for a specific app; the Flatpak app ID, not the app name, is required. The flatpak update {App_ID} gives a hint on the status of the requested app ID, i.e. whether the app is installed or not:
Wassim@linux:~$ flatpak update gedit
Looking for updates…
error: Invalid id gedit: Names must contain at least 2 periods
Wassim@linux:~$ flatpak update org.gnome.gedit
Looking for updates…
error: org.gnome.gedit not installed
Wassim@linux:~$
Managing Flatpak runtimes#
#observation Runtimes that are installed as part of a Flatpak app are not automatically removed by the Flatpak tool when the app is removed; This is an extra manual step.
user1@rhel10-vm2:~$ sudo flatpak install flathub io.github.zyedidia.micro
[sudo] password for user1:
Looking for matches…
Required runtime for io.github.zyedidia.micro/x86_64/stable (runtime/org.freedesktop.Platform/x86_64/25.08) found in remote flathub
Do you want to install it? [Y/n]: y
io.github.zyedidia.micro permissions:
ipc network fallback-x11 wayland x11 file access [1] dbus access [2]
[1] /tmp, /var/tmp, host
[2] org.freedesktop.Flatpak
ID Branch Op Remote Download
1. [✓] org.freedesktop.Platform.Locale 25.08 i flathub 18.6 kB / 379.4 MB
2. [✓] org.freedesktop.Platform 25.08 i flathub 116.4 MB / 253.4 MB
3. [✓] io.github.zyedidia.micro stable i flathub 6.1 MB / 6.2 MB
Installation complete.
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak uninstall io.github.zyedidia.micro
ID Branch Op
1. [-] io.github.zyedidia.micro stable r
Uninstall complete.
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo flatpak install io.github.zyedidia.micro
Looking for matches…
io.github.zyedidia.micro permissions:
ipc network fallback-x11 wayland x11 file access [1] dbus access [2]
[1] /tmp, /var/tmp, host
[2] org.freedesktop.Flatpak
ID Branch Op Remote Download
1. [✓] io.github.zyedidia.micro stable i flathub 6.1 MB / 6.2 MB
Installation complete.
user1@rhel10-vm2:~$
The runtimes that were installed as part of the installation of the example Flatpak app, ‘Micro’ are visible in the output of the flatpak list --runtime command.
user1@rhel10-vm2:~$ flatpak list --runtime
Name Application ID Version Branch Installation
Freedesktop Platform org.freedesktop.Platform freedesktop-sdk-25.08.15 25.08 system
Mesa org.freedesktop.Platform.GL.default 26.1.5 25.08 system
Mesa (Extra) org.freedesktop.Platform.GL.default 26.1.5 25.08-extra system
Codecs Extra Extension org.freedesktop.Platform.codecs-extra 25.08-extra system
GNOME Application Platform version 50 org.gnome.Platform 50 system
user1@rhel10-vm2:~$
Uninstall unused Flatpak runtimes#
Uninstall any currently unused runtimes:
user1@rhel10-vm2:~$ flatpak uninstall --unused
Nothing unused to uninstall
user1@rhel10-vm2:~$
Uninstall a Flatpak app then repeat the flatpak uninstall --unused command:
user1@rhel10-vm2:~$ sudo flatpak uninstall io.github.zyedidia.micro
[sudo] password for user1:
ID Branch Op
1. [-] io.github.zyedidia.micro stable r
Uninstall complete.
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo flatpak uninstall --runtime --unused
ID Branch Op
1. [-] org.freedesktop.Platform 25.08 r
2. [-] org.freedesktop.Platform.Locale 25.08 r
3. [-] org.freedesktop.Platform.codecs-extra 25.08-extra r
Uninstall complete.
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo flatpak uninstall --runtime --unused
Nothing unused to uninstall
user1@rhel10-vm2:~$
#observation The flatpak uninstall --runtime --unused command acts as a manual cleaner of all Flatpak runtimes deemed unused at the time of execution of the command.
Updating appstream metadata#
Flatpak applications are described with a standard format called Appstream. This is not to be confused with the AppStream DNF repo.
The flatpak update --appstream updates the metadata of the applications that are contained in the Flatpak remote servers that are referenced in the output of flatpak remotes. The appstream data is for instance the description of the applications that are managed by the local software center.
The following example displays the configured flatpak remote ‘flathub’ then updates the appstream metadata its applications:
user1@rhel10-vm2:~$ flatpak remotes
Name Options
flathub system
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ flatpak update --appstream
Updating appstream data for remote flathub
Error updating: Flatpak system operation DeployAppstream not allowed for user
user1@rhel10-vm2:~$
user1@rhel10-vm2:~$ sudo flatpak update --appstream
[sudo] password for user1:
Updating appstream data for remote flathub
user1@rhel10-vm2:~$