this post was submitted on 23 Sep 2026
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Plutonium-239 - Arch Linux made unbreakable and lightning fast. Initial in-development release, announced here on Lemmy first. (pu-239.org)
submitted 1 day ago* (last edited 1 day ago) by yxc999@lemmy.ml to c/linux@lemmy.ml
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19 days ago I announced my plans here on Lemmy and after four weeks and ~300 hours in total, I can finally share the first ISO of my project with this community. ~~"sometime next week" yeah that was optimistic lmao~~ I want to thank you again for the feedback on the initial announcement and I can say I tried my best to address and implement a lot of your suggestions!

For the people that haven't read the last post, this is the basic gist of it:

Unlike immutable distributions that lock you out of the native package manager and force you into sandboxes, Plutonium-239 keeps the core Arch experience intact. You still get the bleeding-edge Arch repositories and the power of the AUR but all of that with a 5-20% performance boost from a heavily optimized kernel and the peace of mind of an unbreakable safety net underneath.

For the ISO and the in-depth technical documentation, please visit my website at the link in the title!

The 0.0.1 version is a pre-release/in-development version meant for experienced people interested in this project. I tested it extensively and I'm running it for a few days now on my Thinkpad myself, however I can IN NO WAY guarantee that this is 100% viable to daily-drive just yet.

I'm very thankful for every person that considers testing this distro in a VM or on a secondary PC to contribute to the development of this project. Any feedback is appreciated and I hope my work can be of value to you!

Edit: from the feedback that was pm'd to me so far it seems like it's working fine when it's running but two people had issues with the hardware detection during the install. If you are experiencing a similar issue, please send me your hardware specs and the output of the log where it failed and I'll be able to make it more robust!

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[–] Amaterasu@lemmy.world 2 points 1 day ago (1 children)

The part that I'm a bit confused is this paragraph:

Unlike immutable distributions that lock you out of the native package manager and force you into sandboxes, Plutonium-239 keeps the core Arch experience intact. You still get the bleeding-edge Arch repositories and the power of the AUR but all of that with a 5-20% performance boost from a heavily optimized kernel and the peace of mind of an unbreakable safety net underneath.

And then the follow up:

Edit: if you look up how Fedora Silverblue works, it's pretty much the same, just applied to Arch!

It sounds a bit contradictory. Can we think about Plutonium-239 as of SteamOS that is classic atomic distro and based on Arch or this is more of a case to something like the RakuOS?

[–] yxc999@lemmy.ml 2 points 1 day ago

Yeah, you are right, I'm not the best at explaining things, I'm sorry. I look at it like literally Arch but the updates are atomic. You can choose to install or uninstall whatever you want, but it gets written with an A/B system during updates so you can always have a fallback. It does come preconfigured from the start, because that was easier to develop for now, but you can treat this like any other Arch install, just with safer updates.