Gaming only on Linux, one year in
I have now been playing games only on Linux for a year, and it has been great. With the GPU shortage, I had been waiting for prices to come back to reasonab...
Posts by year
2024
2023
Don’t change your login shell, use a modern terminal emulator
chsh is a small tool that lets you change the default shell for your current user. In order to let any user change their own shell, which is set in /etc/pass...
Signed container images with buildah, podman and cosign via GitHub Actions
All the Toolbx and Distrobox container images and the ones in my personal namespace on Quay.io are now signed using cosign. How to set this up was not reall...
sudo without a setuid binary or SSH over a UNIX socket
In this post, I will detail how to replace sudo (a setuid binary) by using SSH over a local UNIX socket. I am of the opinion that setuid/setgid binaries are...
Kinoite Nightly images with Plasma 6
Update: We’ve merged KDE 6 / Plasma 6 packages to Rawhide so Kinoite Nightly builds will be paused again. You can follow the progress in Kinoite via the Ra...
What’s new for Silverblue, Kinoite, Sericea and Onyx in Fedora 39
Fedora 39 has been released! 🎉 So let’s see what comes in this new release for the Fedora Silverblue, Kinoite, Sericea and Onyx variants. This post is a sum...
Testing latest KDE software, from Apps to the Plasma desktop
This is the transcript of the talk I gave at Akademy 2023. If you prefer, you can watch the video (the sound is not great unfortunately) or look at the slide...
How to make a new rpm-ostree desktop variant in Fedora?
So you want to make a new rpm-ostree desktop variant in Fedora to join Silverblue, Kinoite, Sericea and soon Onyx? Here are the steps that you should follow....
What’s new in Fedora Kinoite 38
Fedora 38 has been released 🎉 (on time!) and Fedora Kinoite 38 alongside it. Since the last “State of Fedora Kinoite” post was a while ago, here is a summar...
Introducing Kinoite Nightly (and Kinoite Beta)
Update: Kinoite Nightly & Beta images are temporarily paused while we work on making Kinoite image with Plasma 6 content available. As announced dur...
OpenSSH client side key management for better privacy and security
If you have read the ssh whoami.filippo.io post by Filippo Valsorda and the related whoarethey: Determine Who Can Log In to an SSH Server post by Andrew Ayer...
2022
Community maintained images for toolbox (and distrobox)
In this post I will discuss how we made community maintained container images for common Linux distributions available for use with toolbox (and distrobox) a...
Finalizing rpm-ostree support in Discover
Initial support for rpm-ostree was added in Discover as part of a Season of KDE 2021 project that was completed by Mariam Fahmy. Unfortunately, we hit some ...
Akademy 2022: What’s next for Flatpaks in KDE
Thanks to Fedora sponsorship (both for my travel and the conference itself), I was able to attend Akademy last week in Barcelona. It was great to finally mee...
Akademy 2022: Conference report
Thanks to Fedora sponsorship (both for my travel and the conference itself), I was able to attend Akademy last week in Barcelona. It was great to finally mee...
Recap from the Pass the SALT 2022 conference
I’ve had the opportunity to talk at the Pass the SALT conference in July 2022. I would like to thank both the organizers for accepting my talk and the Fedora...
How to try KDE Plasma 5.24 Beta on Fedora Kinoite
KDE Plasma 5.24 Beta is here! 🎉 On a classic Fedora system or on other disctributions you can try it with the repos listed on the KDE Wiki. Here is how to s...
2021
Development on Fedora Silverblue and Fedora Kinoite
This is a guide covering how to work on applications on Fedora Silverblue and Fedora Kinoite. Depending on the case, it may be easier to work with Flatpak, w...
State of Fedora Kinoite, December 2021 edition
This is the first post about the state of Fedora Kinoite since the release as part of Fedora 35. The goal is to have at least one post before or shortly afte...
Installing Fedora CoreOS on a VPS in OVHcloud (OVH)
This is a guide to install a Fedora CoreOS on a VPS in OVHcloud (OVH). Although this guide is focused on OVHcloud, those steps should work on any bare-metal ...
2018
Linux system hardening thanks to systemd (& 2018 update)
I gave a talk about Linux system hardening using systemd features at SSTIC 2017 (in French) and at RMLL 2017 (in English, in the security track). Frenc...
2016
systemd and the crashing tweet
By now you have probably read all about how systemd is so easy to “crash” that one can make it fit in a tweet (How to Crash Systemd in One Tweet). This post...
Let’s Encrypt, automated, but please not as root
I made the switch today to Let’s Encrypt for all the certificates used by services hosted at siosm.fr. The official setup instructions are well written and ...
Give bus1 a try on Arch Linux
I’ve packaged the bus1 kernel module and the related projects hosted on GitHub for Arch Linux.
2014
Ubuntu 14.04 LTS: Why you should not use it, at all
Ubuntu 14.04 LTS (Trusty Tahr) has been released on April 17th 2014, thus this Long Term Support (LTS) version is brand new. So why am I already telling you ...
Get rid of syslog (or a journald log filter in ~100 lines of Python)
We’ve recently switched the host behind the siosm.fr domain and thus decided it was time we dropped syslog logging entirely and use journald only. We used to...
My first program in Rust and an update on my RSS reading habits
I’ve finally found the time to make my first program in Rust and I definitely enjoyed it!
Comments on EWONTFIX: Broken by design: systemd
This post is a reply to the latest article on the EWONTFIX blog: Broken by design: systemd. Update (2014-04-26): I rewrote part of this article to include m...
2013
Leselys, a web based, self-hosted RSS reader not written in PHP
I must confess: I’ve almost never used Google Reader as I’ve only been using Akregator as far as I remember. I didn’t want to rely on anyone to host my feeds...
2012
Setup a Firefox Sync Server with nginx and systemd
I needed a way to synchronize my bookmarks in Firefox across three computers, and doing it manually wasn’t an option anymore, so I turned to sync-like extens...
siosm.fr now with comments thanks to Wt Comments!
Update: Comments are now handled by a custom webapp written in Rust. I have disabled new comments until I find the time to complete it. This blog now has in...
XDC 2012 - Recap on X.org security, from X11 to Wayland/Weston
Martin Peres and I gave a long talk about the X.org security at XDC 2012 in Nuremberg. Michael Kerrisk wrote a really good article for LWN summarizing the ta...
Give Wayland/Weston a try on Arch Linux
Important note: Wayland and Weston have been moved to community/extra! Thus this How to is no longer necessary. I’m just keeping it here for reference. I may...
How to use Powertop to reduce power consumption
Update: Using rc.local is not the good way to do thing and may not work at all. Use the recommendations from the Power saving page on the Arch Wiki instead. ...
Setup cgit with nginx on Arch Linux
I recently had to setup cgit with nginx on Arch Linux for https://siosm.fr/git and it took me quite some time as I was not familiar with cgi, fcgi, fcgiwrap,...
Everything you need to install Arch Linux
Here is a list of all the thing you should read while installing Arch Linux if you ran into troubles. This post will be updated as often as possible. If you ...
Nokia N9
I just received my Nokia N9 and I’m starting to learn Qt Quick/QML to design some applications for it. You can find some useful applications on websites such...
Build KDE on Arch Linux using kdesrc-build
To build KDE on Arch Linux with the nice kdesrc-build script, you need the packages listed on this page: KDE TechBase plus this package: perl-libwww. I didn’...
2011
PHD CTF Quals
I took part in the PHD CTF Quals on the 10-11th December 2011, with two friends (Alkino and PO). For more information, see siosm.fr/public.
First entry on this blog!
Update (2012-03): I switched to Octopress, which is extremely simple to use and secure by design (no databases, no scripting languages, pure static content)....