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Fedora Silverblue: GNOME with an atomic system base
Fedora Silverblue is one of the Fedora Atomic Desktops. Like Workstation, it uses GNOME, but it organises software differently: rpm-ostree manages the system base, graphical applications mainly use Flatpak, and development tools can run in Toolbx.
The official Silverblue overview explains this approach. The choice concerns how you administer the computer as well as its desktop appearance. Our Fedora profile introduces conventional editions.
What does an atomic update mean?
The system base is prepared as a new deployment and activated at reboot. The previous deployment remains available for rollback when necessary. “Atomic” describes this update mechanism; it does not guarantee freedom from bugs or compatibility with every device.
The rpm-ostree handbook distinguishes the running deployment, the one prepared for the next boot and, when available, the previous one. The read-only command rpm-ostree status shows them. A prepared update is therefore not necessarily the system you are already running.
Rollback applies to a system deployment. It is not a backup of your documents and does not replace management of Flatpak application versions or development environments. Keep an independent copy of files before important changes.
Where should each type of software be installed?
Flatpak for desktop applications
Prefer Flatpak applications where they meet your requirements. The format supplies separate runtimes and restricts some access to the host. The Flatpak documentation describes its purposes and limitations: it is not a way to install a kernel or driver. Check application provenance and permissions, especially access to files and devices needed for your work.
Toolbx for development and command-line tools
Toolbx lets you install tools in a container environment without adding them to the system base. Within a Fedora container, DNF manages that environment’s packages, not the Silverblue host base.
Toolbx is not a security sandbox for unknown code. Its official website explains that it can access the home directory, network and several host services. It is designed for convenient integration with the host. Separating project dependencies therefore does not protect your files from every program run inside the container.
rpm-ostree for necessary system additions
RPM packages can be added to the base through package layering. The rpm-ostree handbook explains that this creates a new deployment and normally takes effect after rebooting. Reserve it for software requiring host integration, after checking Silverblue-specific instructions.
Does Silverblue suit your work?
This organisation can suit people who want to separate the system, applications and development environments clearly. It also requires choosing the correct installation method. Fedora Workstation instructions that install host packages using DNF do not automatically apply.
- Essential applications: check availability, file access and required features with our software checklist.
- Hardware and system tools: examine specific instructions for drivers, VPNs, modules and software requiring host access.
- Maintenance: plan necessary reboots and upgrades to newer releases. Fedora advertises approximately thirteen months of updates per Silverblue release.
If your primary goal is a selected collection of scientific computation and writing tools, our Fedora Scientific profile addresses that separate need. Choosing an atomic desktop does not itself provide a complete scientific environment.
Downloading Silverblue and preparing installation
On 11 October 2026, the official download page offered Fedora Silverblue 44, released on 28 April 2026, as OSTree ISO images for x86_64 and aarch64. Follow the instructions for your architecture, including OpenPGP signature verification followed by the SHA256 check.
Our Fedora Silverblue download page provides the next step. You can explore administration in a compatible virtual machine before changing your main computer, but that does not validate all physical peripherals.
Back up both the USB drive and the target disk, and examine the installer’s choices. An “OSTree ISO” label does not promise a live desktop session identical to Workstation. Read the documentation linked from the download page before planning your trial.