Debian lets you switch and AFAIK it mostly works fine. They provide both sysvinit and runit as alternatives. Packages are only required to provide systemd units now, however a lot of core packages still provide sysvinit scripts, and Debian provides a package orphan-sysvinit-scripts that contains all the legacy sysvinit scripts that package maintianers have chosen to remove from their packages.
That’s just in the official repository, of course. Third-party repos can do whatever they want.
None of the others are as deeply integrated into everything as systemd, they pretty much just handle starting things up so dropping in a replacement should be fairly straightforward. At least, it was until everything switched to systemd. Which is probably my biggest issue with it: that it integrates to the point you can’t replace it anymore.
Honestly I don’t know. I just know that desktop environments and a lot of other packages have hard dependencies on Systemd, at least on Arch and Debian based systems. Those packages include: base, flatpak, polkit, xdg-desktop-portals, and vulkan-intel. So yeah, it’s nearly impossible to not break anything.
If you try to switch a distro that’s already using Systemd to some other init system, you’ll have so many broken things to fix!
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I was just trying to make fun of how hard it is to replace Systemd. I am still gonna make the switch when I get some free time.
Debian lets you switch and AFAIK it mostly works fine. They provide both sysvinit and runit as alternatives. Packages are only required to provide systemd units now, however a lot of core packages still provide sysvinit scripts, and Debian provides a package
orphan-sysvinit-scriptsthat contains all the legacy sysvinit scripts that package maintianers have chosen to remove from their packages.That’s just in the official repository, of course. Third-party repos can do whatever they want.
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None of the others are as deeply integrated into everything as systemd, they pretty much just handle starting things up so dropping in a replacement should be fairly straightforward. At least, it was until everything switched to systemd. Which is probably my biggest issue with it: that it integrates to the point you can’t replace it anymore.
Honestly I don’t know. I just know that desktop environments and a lot of other packages have hard dependencies on Systemd, at least on Arch and Debian based systems. Those packages include: base, flatpak, polkit, xdg-desktop-portals, and vulkan-intel. So yeah, it’s nearly impossible to not break anything.