this post was submitted on 17 Feb 2026
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Sabayon Linux was a Gentoo-based distribution that existed from the mid-2000s until 2019. It aimed to make Gentoo accessible to regular users without the usual compilation headaches.

Created by Fabio Erculiani, Sabayon offered pre-built binaries through its Entropy package manager. This let users skip the hours of compiling while still getting the Gentoo experience.

Now Fabio has shared that he's working on a new immutable, atomic Linux distro called matrixOS. Like Sabayon, it's also based on Gentoo.

๐Ÿšง The developer warns that this is a hobby project specifically created for homelab setups, not for production machines.

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I'm curious to see how they will handle immutability and what will it set apart from other distros like fedora atomic.

Most immutable distros have limitations on installing CLI tools because they are designed to have flatpak as the main package manager. It'd be cool if they had some tricks for installing software in the user/data partition like you can do with homebrew in bazzite, but better integrated into the system package manager (I'm imagining a gentoo prefix integrated into a unified package manager)