Hello TUXEDO Fans and Open-Source Enthusiasts!
This week, the Linux community continued its somewhat heated debate over the future of Flatpak, the distribution-independent Linux package system that comes pre-configured on TUXEDO OS. The discussion was prompted by a presentation at the Linux App Summit 2026 , which addressed the question of whether the next generation of Flatpak should require systemd as a hard dependency, which would exclude distributions without systemd from the Flatpak ecosystem. Flathub, the largest app store for Flatpak, also made headlines this week, as the developers tightened the guidelines for AI-generated code.
Things were a bit quieter at TUXEDO, however. The integration of TUXEDO Tomte 3, released the previous week, went off without a hitch. The App of the Week focuses on the new features in the KDE note-taking app Marknote 1.6, and in the Tips and Tricks section, we take a closer look at KRunner.
Enjoy reading,The TUXEDO OS Team
Note: We would like to keep you updated on the latest developments in TUXEDO OS with the TWIX series and introduce you to exciting applications as well as practical tips related to the KDE desktop and TUXEDO OS. However, this section should not be a one-way street: your feedback, ideas, and suggestions for improvement are very welcome! For this purpose, we have created a thread on Reddit, where you can reach us directly.
Updates TUXEDO
tuxedo-tomte 3.0.5
Add nvidia additionally as ubuntu fix
Updates TUXEDO OS
Firefox 151.0.3
Mesa 26.11
KDE App of the Week: Marknote 1.6: Note-Taking in KDE
We have already written about Marknote, the open-source WYSIWYG note-taking application from the KDE project, on two occasions in this column. The reason we are covering it again is the recent release of Marknote 1.6.
New Features
The standout new feature is the initial support for subfolders, allowing notes to be organized more effectively. However, the implementation is not yet complete, as developer Carl Schwan explains in his announcement of the update . Currently, subfolders still have to be created outside of Marknote, for example, in Dolphin or another file manager. This is expected to change in future releases. Another new feature is that each notebook now displays the number of notes it contains. Marknote’s search function can now search across all notebooks instead of being limited to a single one.
Subdirectories are a new feature in Marknote 1.6, but they currently still need to be created in the file manager.
By default, Marknote stores notes in ~/Documents within your home directory. Each notebook is stored as a separate subfolder inside the Notes directory. The newly introduced subfolders are created within the respective notebook folder. Since Marknote 1.2, it has also been possible to specify a custom directory for storing notes.
Marknote 1.6 displays the number of notes per folder on the left-hand side of the bar.
Visual Effects
The editor now includes an optional background blur effect similar to those found in other KDE applications such as NeoChat. In addition, Marknote now offers emoji completion directly within the text editor, making it easier to insert emojis quickly. The release is rounded off by various bug fixes, code cleanups, and improved translations.
Availability
Currently, it is recommended to install Marknote as a Flatpak via the Discover software center. The recently released version 1.6 is already available there. The source code can be found on GitLab .
Moving Beyond a Simple Note-Taking Tool
The features introduced in recent Marknote releases suggest a shift away from being a simple WYSIWYG note-taking application toward becoming a Markdown-based knowledge management system with linking and fast navigation capabilities. This positions it as a potential alternative to established proprietary tools such as Obsidian. We are curious to see how Marknote evolves within the already well-populated ecosystem of Linux note-taking applications.
Info: Are you interested in Plasma development and want to know what new features are planned and which programs have been recently updated? You can find a detailed overview in the weekly column This week in Plasma by KDE developer Nate Graham.
TUXEDO OS Tips & Tricks: A deep dive into KRunner
KRunner is something of KDE Plasma’s best-kept secret. Yet the small bar, summoned with Alt +F2 or alternatively Alt +Space , is extraordinarily powerful. Originally conceived as an application launcher, KRunner has since grown into a fully-fledged command center for the desktop — if you know what it is capable of.
Modular by design
KRunner works with modules that handle different tasks. Many are active by default, but users are often unaware of them. After opening the KRunner command bar, clicking the gear icon on the far left takes you to its settings. Here you can decide, among other things, whether the bar should appear at the top or in the center of the screen. You can also disable the history or enable auto-completion.
In the settings, you determine the position and behavior of KRunner.
Clicking the Configure Enabled Search Plugins button takes you to the KRunner page in System Settings. Here you will find a list of KRunner modules; you can enable or disable them and mark favorites, which places them in the easily accessible upper area.
System Settings shows all KRunner modules installed by default.
The Get New Plugins button leads to a list of community modules that have not yet been officially included. The warning about unreviewed executable code should be taken seriously — downloaded modules should be assessed for security and quality or evaluated by a trusted AI. A better overview of the roughly 70 additional modules is available on the KDE Store . In the KDE Store, it is best to filter specifically by the Plasma 6 tag, as some runners are still limited to Plasma 5.
Community modules supplement KRunner’s standard modules. You should take the warning about executable code seriously.
You can see how KRunner works by entering a simple mathematical expression such as 12 x 7 . The screenshot below illustrates this. KRunner lists all occurrences of this expression found across the enabled modules.
Because KRunner does not know which module you expect an answer from when you enter a query, it lists all matches.
KRunner assumes you are looking for the result of a calculation and places the calculator module’s answer first. The copy icon on the right sends the result to the clipboard. Less well known is the fact that behind the calculator lies the powerful Qalculate! App, which also handles symbolic mathematics, derivatives, and equations.
Further standard modules
Many everyday tasks can be handled quickly with KRunner without launching dedicated applications. A few example inputs:
dolphin launches the file managerspell neccessary suggests the correct spellingtuxedocomputers.com opens the TUXEDO website via the Locations modulegg:TUXEDO Computers starts a search using a web shortcutwp:TUXEDO Computers searches Wikipedia for the given termtime tokyo shows the current time in Tokyokill disc gracefully shuts down the Discover application15 USD in EUR displays the conversion at the current exchange rate#3daee9 shows the color corresponding to the entered color code
You will find many more web shortcuts in the System Settings for KRunner.
In addition, applications and files can be found, shell commands executed, software installed, or windows switched. If you use virtual desktops, you can use KRunner to move running windows to a specific desktop: search for the window name and select the appropriate action. If you want to find out where and in what form a term appears on your system, KRunner shows all matches — regardless of whether it is a bookmark, an open browser tab, a folder, a location in Dolphin’s sidebar, a PDF, a video, or audio clip, or any other type of file. It also lists matches within documents, not just in their titles. The search service Baloo does the heavy lifting in the background.
Term searches use the Baloo search service in the background to display all occurrences of a term.
KRunner also executes console commands. Entering ls -l /home/user/Downloads displays the line Run ls -l /home/user/Downloads . Click the small console icon on the right edge, and a terminal window opens with the command already executed. Pressing Alt +Shift +F2 opens KRunner not empty but with the current clipboard content or the currently selected text automatically inserted into the search bar. This is very handy when, for example, you are reading an article and select a physics equation or a calculation — KRunner immediately delivers the result without any manual pasting.
Lesser-known KRunner tricks
imdb:Pulp Fiction finds your favorite film in the IMDB movie databasedeb:packagename triggers a Debian package searchtimeline:/today shows all files you have opened or edited today in the Dolphin file managerrecentlyused gives you a broader overview of your most recently used files
Community extensions
Clipboard Runner provides access to the clipboard historyKeePassXC/Bitwarden integration searches the password databases and copies usernames or passwords directly to the clipboard on demand, without needing to open the password manager windowVSCode Runner searches directly through the list of workspaces recently opened in VSCode. Pressing Enter opens the project in VSCode; pressing Shift +Enter opens the project folder directly in the Dolphin file managerWeb Runners query stock prices directly from the search barKRunner Steam Launcher is aimed at gamers who want to browse their game library and launch titles without the sluggish Steam client
Controlling KRunner with the keyboard
KRunner can be operated entirely by keyboard: Alt +F2 or Alt +Space open the input bar, Escape closes it, the arrow keys navigate between results, and Page Up and Page Down move through longer result lists. With an empty input bar, the up arrow key displays the history of previous inputs. Enter executes the selected entry.
Ubuntu Security Updates
The Ubuntu security updates listed here are generally incorporated directly into TUXEDO OS. Some updates are only available from Ubuntu for a fee and are therefore not made available to the community until a later date. Unfortunately, we have no control over this:
USN-8344–3: pip vulnerability
USN-8348–1: GoBGP vulnerabilities
USN-8374–1: Linux kernel vulnerabilities
USN-8373–1: Linux kernel vulnerabilities
USN-8372–1: age vulnerability
USN-8371–1: Linux kernel vulnerabilities
USN-8369–1: Apache Tomcat Connectors vulnerability
USN-8367–1: tar-fs vulnerabilities
USN-8365–1: Dovecot vulnerabilities
USN-8364–1: Apache Commons Lang vulnerability
USN-8363–1: MySQL vulnerabilities
USN-8362–1: XZ Utils vulnerability
USN-8360–1: sslh vulnerability
USN-8359–1: NNCP vulnerability
USN-8358–1: haveged vulnerability
USN-8357–1: Qt Declarative vulnerability
USN-8356–1: GNU SASL vulnerability
USN-8355–1: SSSD vulnerability
USN-8354–1: nginx vulnerabilities
USN-8353–1: Exim vulnerability
USN-8350–1: Linux kernel vulnerabilities (NVIDIA Tegra)
LSN-120–1: Kernel Live Patch Security Notice
Current BIOS/EC Versions
An EC/BIOS update affects key system components. Please ensure that you follow the instructions carefully and take your time. The process is usually completed quickly. If you have any doubts, our support team is happy to assist you. The following devices have BIOS/EC updates available:
Model
CPU
GPU
BIOS
EC
Stellaris Slim 15 Gen 6
AMD
GeForce RTX 4060 (Motorcomm LAN)
N.1.09A10
1.16.00
Stellaris Slim 15 Gen 6
AMD
GeForce RTX 4070 (Motorcomm LAN)
N.1.09A10
1.16.00
