this post was submitted on 02 Oct 2025
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Can you use Signal on a Linux phone? I know there's a desktop Linux client, but it relies on being activated from an Android or iPhone app to function, in my experience.
https://www.ubuntu-touch.io/apps/ can run Android apps with Waydroid. I don't know if Signal works with this, but Android apps run with good performance using Waydroid (I just read about it, never used it myself).
I don't have experience with mobile Linux (still on Android), but you can emulate Android apps through Waydroid and that would (probably) work. Granted, Idk if notifications would work, but that's an option if mobile Linux can handle Waydroid. There's also Molly, which is a signal client that doesn't rely on Google Play Services for notifications.
Better not to use Signal. It's intentionally made less secure by requiring a phone number.
Wire is better. Native Linux app. No phone number needed.
Signal is important to some of my contacts and its E2E encryption is excellent. The only thing the phone number gives away to the outside is "has this person used Signal in the past?". Since it is not illegal to use Signal in my country, I'm not worried.