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Trying some Linux distributions to free my Steam Deck

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Introduction

As the owner of a Steam Deck (a handeld PC gaming device), I wanted to explore alternatives to the pre-installed SteamOS you can find on it. Fortunately, this machine is a plain PC with UEFI Firmware allowing you to boot whatever you want.

What's the deck?

It's like a Nintendo Switch, but much bigger. The "deck" is a great name because it's really what it looks like, with two touchpads and four extra buttons behind the deck. By default, it's running SteamOS, an ArchLinux based system working in two modes:

Unfortunately for me, I don't like ArchLinux and I wanted to understand how the different modes were working, because on Steam, you just have a button menu to switch from Gaming to Desktop, and a desktop icon to switch from desktop to gaming.

Steam Deck official website (with specs)

Here is a picture I took to compare a Nintendo Switch and a Steam Deck, it's really beefy and huge, but while its weight is higher than the Switch, I prefer how it holds and the buttons' placement.

Steam Deck side by side with a Nintendo Switch

Alternatives

And after starting my quest to free my Deck, I found there were already serious alternatives. Let's explore them.

HoloISO

This project purpose is to reimplement SteamOS the best it can, but only using open source components. They also target alternative devices if you want to have a Steam Deck experience.

Project page

My experience wasn't great with it, once installation was done, I had to log in into Steam, and at every reboot it was asking me to log-in again. As the project was mostly providing the same experience based on ArchLinux, I wasn't really interested to look into it further.

ChimeraOS

This project purpose is to give Steam Deck user (or similar device owners) an OS that would fit the device, it's currently offering a similar experience, but I've read plans to offer alternative UI. On top of that, they integrated a web server to manage emulations ROMS, or Epic Games and GOG installer, instead of having to fiddle with Lutris, minigalaxy or Heroic game launcher to install games from these store.

The project also has many side-projects such as gamescope-session, chimera or forks with custom patches.

Project official website

My experience was very good, the web server to handle GOG/Epic is a very cool idea and worked well, the Steam GamepadUI was working as well.

Jovian-NixOS

This project is truly amazing, it's currently what I'm running on my own devices. Let's use NixOS with some extra patches to run your Deck, and it's just working fine!

Jovian-NixOS (in reference to Neptune, the Deck codename) is a set of configuration to use with NixOS to adapt to the Steam Deck, or any similar handeld device. The installation isn't as smooth as the two other above because you have to install NixOS from console, write a bit of configuration, but the result is great. It's not for everyone though.

Project page

Obviously, my experience is very good. I'm in full control of the system, thanks to NixOS declarative approach, no extra services running until I want to, it even makes a great Nix remote builder...

Plain linux installed like a regular computer

The first attempt was to install openSUSE on the Deck like I would do on any computer. The experience was correct, installation went well, and I got in GNOME without issues.

However, some things you must know about the Deck:

In order to switch between Desktop and Gaming mode, I found a weird setup that was working for me:

I turned out Steam GamepadUI with Gamescope button "Switch to desktop mode" is using a dbus signal to switch to desktop, distributions above handle it correctly.

Although it was mostly working, my main issues were:

But, despite these issues, performance was perfectly fine, as well as battery life. But usability should be priority for such a device, and it didn't work very well here.

Conclusion

If you already enjoy your Steam Deck the way it is, I recommend you to stick to SteamOS. It does the job fine, allows you to install programs from Flatpak, and you can also root it if you really need to install system packages.

If you want to do more on your Deck (use it as a server maybe? Who knows), you may find it interesting to get everything under your control.

Pro tip

I'm using syncthing on my Steam Deck and other devices to synchronize GOG/Epic save games, Steam cloud is neat, but with one minute per game to configure syncthing, you have something similar.

Nintendo Switch emulation works fine on Steam Deck, more about that soon :)

Steam Deck displaying the Switch game Pokémon Arceus Legends