Purism Librem 5 runs a custom distro developed by the company which made the phone, but you can run it on desktop as well, so I believe it qualifies. As a bonus, recently the open source GPU driver for that chip has reached performance parity with the closed source one, although I am not sure which one is used in the phone.


You can daisy chain headphones, or use passive splitters, like this one I found on amazon: https://www.amazon.com/dp/B088686SKJ/

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