linux phone

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The Nokia N900 Updated For 2025

December 23, 2025 by 10 Comments

Can a long-obsolete Linux phone from 2009 be of use in 2025? [Yaky] has a Nokia N900, and is giving it a go.

Back in the 2000s, Nokia owned the mobile phone space. They had a smartphone OS, even if they didn’t understand app distribution, they had the best cameras, screens, antennas, the lot. They threw it all away with inept management that made late-stage Commodore look competent. Apple and Android came along, and now a Nokia is a rarity. Out of this mess came one good thing, though: the N900 was a Linux-based smartphone that became the go-to hacker mobile for a few years.

First up with this N900 is the long-dead battery. He makes a fake battery with a set of supercapacitors and resistors to simulate the temperature sensor, and is then able to power it from an external PSU. This is refined to a better fake battery using the connector from the original. The device also receives a USB-C port, though due to space constraints, not the PD identifiers, making it (almost) modern.

Because it was a popular hacker device, it’s possible to upgrade the software on an N900. He’s given it U-Boot, and now it boots Linux from an SD card and functions as an online radio device.

That’s impressive hackability and longevity for a phone, if only we could have more like it.

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8-Core ARM Pocket Computer Runs NixOS

July 17, 2025 by 9 Comments

What has 8 ARM cores, 8 GB of RAM, fits in a pocket, and runs NixOS? It’s no pi-clone SBC, but [MWLabs]’s smartphone– a OnePlus 6, to be precise.

The video embedded below, and the git link above, are [MWLabs]’s walk-through for loading the mobile version of Nix onto the cell phone, turning it into a tiny-screened Linux computer. He’s using the same flake on the phone as on his desktop, which means he gets all the same applications set up in the same way– talk about convergence. That’s an advantage to Nix in this application, compared to the usual Alpine-based PostMarketOS.

Of course some of the phone-like features of this pocket-computer are lacking: the SIM is detected, and he can text, but 4G is nonfunctional. The rear camera is also not there yet, but given that Mobile-NixOS builds on the work done by well-established PostMarketOS, and PostMarketOS’ testing version can run the camera, it’s only a matter of time before support comes downstream. Depending what you need a tiny Linux device for, the camera functionality may or may not be of particular interest. If you’re like us, the idea of a mobile device running Nix might just intrigue you,

Smartphones can be powerful SBC alternatives, after all.  You can even turn them into SBCs. As long as you don’t need a lot of GPIO, like for a server,a phone in hand might be worth two birds in the raspberry bush.

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