Fedora Atomic Desktops (Silverblue, Kinoite, and others) are immutable Fedora variants where the base OS is read-only and updated atomically via rpm-ostree. Applications run as Flatpaks, and rollback to a prior OS image is built in.
Reviewed by Marco Wollank
Fedora Atomic Desktops
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Threat level
Hardened
A hardened pick. Worth the effort once you have chosen to shrink your footprint on purpose. Enough for most people. Threat levels
Our take
Immutability changes the threat model in a meaningful way: a compromised package or a bad system update cannot silently alter the base OS, and rolling back is a single command rather than a reinstall. Fedora’s position close to upstream and Red Hat’s engineering backing means SELinux is on by default and the tooling is polished. The honest friction point is the Flatpak-centric workflow: traditional RPM package installs go into layered overlays that complicate the image, so this design suits users willing to embrace Flatpak or containers. A natural upgrade path for anyone on standard Fedora Workstation who wants more resilience without leaving the ecosystem.
Website at a glance
fedoraproject.org
B score 75
Solid website security headers
Graded by Mozilla HTTP Observatory, tested 13d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
Fedora Atomic Desktops alternatives
Fedora Workstation Fedora Workstation: User friendly and easy to setup
Ubuntu Ubuntu: User friendly and easy to setup
macOS Apple's desktop OS. A real privacy step up from Windows, but closed and US-based.
secureblue secureblue is a security-hardened immutable Linux OS built on Fedora Atomic Desktops. It ships as OCI bootable container images and applies kernel hardening, a hardened memory allocator from GrapheneOS, and a hardened Chromium browser called Trivalent.
Kicksecure Kicksecure is a security-hardened Debian-based Linux distribution that applies a broad set of kernel and userspace hardening settings out of the box, reducing the attack surface without requiring manual configuration. It also serves as the foundation for the Whonix anonymity OS.
NixOS NixOS is a Linux distribution built entirely on the Nix package manager, where the whole system (kernel, packages, services, and configuration) is declared in a single set of files. Upgrades are atomic and fully reproducible rollbacks are a built-in feature.
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