this post was submitted on 30 Apr 2024
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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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sudo
is already an optional component (yes, really—I don't have it installed). Don't want its attack surface? You can stick withsu
and its attack surface instead. Either is going to be smaller than systemd's.systemd's feature creep is only surpassed by that of emacs.
But systemd is modular. They make an offer and distro maintainers and admins get to choose which parts to use
The problem is that those modules are packaged by the developers as opt-out rather than opt-in. It's a variation on Microsoft's old embrace-extend-extinguish playbook, only the "extinguish" part hasn't worked so well because there are some stubborn distros whose needs don't align with what systemd provides and have maintainers that go out of their way to provide alternatives.
(By contrast, although we may joke about emacs, it's the myriad of third-party extensions that cause it to just about be its own operating system—it doesn't all ship with the core.)