Over the past year, I've fallen in love with Linux and everything it has to offer. The immense variety of options in distros, desktops, and software make Linux a very fun space where you never run out of things to talk about. But as fun as it is, the future of Linux may depend on something far more boring: immutability.

Immutable distros are more restrictive than your typical Linux distro, but their immutability also allows them to be the most stable and consistent experiences in the Linux world. And because of that, they could well be the path to a future where Linux gaming is even more viable.

A uniform target

Development is easier this way

The flexibility of Linux is great from the perspective of user freedom, but for a developer, it can make it hard to know who you're developing for. Every Linux user may have a different kernel version, different versions of graphics drivers, and so on. Even if you're using the same distro, some users may install custom drivers or updated versions of them outside of the main update channels.

That's not really the case with immutable distros because each release of the distro is a full system image, so as a developer, you can target a specific software stack. The latest version of Bazzite, for example, will always have the same kernel and graphics drivers, so the experience is consistent for everyone who installs that release.

While it is technically possible for a user to modify the system image of an immutable distro, that same user likely chose an immutable distro specifically for the stability it guarantees, and it's much harder to layer additional packages onto the system than it would be on a typical distro, so it's very unlikely they'd do that. A developer can target that distro with much higher confidence that the configuration is the same for all users running that distro. That removes a lot of the worry around optimization for all the possible configurations users might have.

Preventing configuration drift

Users can expect a more consistent experience

Immutable Linux distros are a good thing for developers wanting to target Linux, but they're just as good for the end users. With an immutable distro, less savvy users can rest assured there's nothing they can really do to break the system. They can't mess with the drivers or the kernel directly, and they can't install any packages that interfere with the whole system.

The only apps users can add to an immutable distro are somewhat self-contained. The most common ones are Flatpak apps, which don't interfere with the host file system because they run in a containerized environment of sorts. There are also AppImage files, which are portable apps that fully contain their own dependencies and data, meaning none of the data in them spreads to the rest of the file system.

Plus, when users install updates, the entire system image is replaced. A small update that only changes part of the operating system isn't going to cause as many issues with the rest, because even smaller changes will be delivered within an entirely new system image containing a specific set of packages, so everything is designed and tested to run together in that setup. Nothing ever deviates from the way it was intended to be used, so the behavior is much more predictable.

You just have to find the right one

Make sure it has the right drivers and optimizations

Of course, if you're looking for the best gaming experience on Linux, you have to look for the right distro for the job. With a typical distro, you might be able to make some tweaks here and there to enhance the experience, but with an immutable distro, you don't have the same kind of freedom, so you'll want to choose the right one.

When it comes to gaming, the most recommended distro is easily Bazzite, which has gained a lot of popularity for mimicking the SteamOS experience, and even offering some tools that are actually better in some ways, like the HandheldDaemon tool for managing power limits on gaming handhelds.

On the bright side, while you can't make tweaks to the system, you can easily swap between distros or rebase your distro if something goes wrong, at least under the Universal Blue project. Since your user data is entirely separate from the system packages, you can swap out the system image entirely for a new one, whether that's a newer or older version of the distro you already have, or an entirely separate distro. If you set up your PC with a distro like Aurora and decide later you want a more focused gaming experience, you can rebase your PC to Bazzite without losing your data.

Standardization has benefits

When one of the big selling points of Linux is the freedom and ease of customization it offers, it's understandable to be skeptical of immutable distros. But a degree of standardization can always help platforms reach more widespread support, since it gives developers a single platform to target. Options like Bazzite could help drive Linux adoption further for gaming and improve the overall experience for everyone. And with more Linux users, more of other kinds of apps could also come in the future.