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this post was submitted on 18 Mar 2026
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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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What is the alternative to systemd? I'm sort of a linux noob when it comes to this deeper level stuff.
SystemD isnt exactly a program but more of a group of projects, the only "core" SystemD software on most distros is the init system... Which you can run completely without SystemD's UserDB system (the part being talked about in the post).
Basically this means you as a user dont have to do anything but switch away from projects that depend on SystemD's UserDB (like Gnome), not SystemD as a whole
However if you do want to move away from SystemD as a whole you can replace your init system with another one, gentoo's wiki is a good starting point for learning a bit more: wiki. Personally I love using openrc but of you have no need to touch init files... Dont switch
Does KDE also use UserDB?
mine doesn't appear to be? it says installed but disabled. unless i'm looking at the wrong service which is entirely possible.
It appears to be active (running)
this is what i was going off of. i'm running cachyos (arch). am i reading wrong?
https://unix.stackexchange.com/questions/763290/what-is-the-preset-field-in-systemctl-status