[styanax]

> What's the legitimate use case for a package install being allowed to run arbitrary commands on your computer?

The paradigm itself has been in package managers since DEB and RPM were invented (maybe even Solaris packages before that? it's been a minute since I've Sun'd); it's not the same as NPM, a more direct comparison is the Arch Linux AUR - and the AUR has been attacked to try and inject malware all year (2025) just like NPM. As of the 26th (5 days ago) uploads are disabled as they get DDOSed again. https://status.archlinux.org/ (spirit: it's the design being attacked, pain shared between AUR and NPM as completely disparate projects).

More directly to an example: the Linux kernel package. Every Linux distribution I'm aware of runs a kernel package post-install script which runs arbitrary (sic) commands on your system. This is, of course, to rebuild any DKMS modules, build a new initrd / initramfs, update GRUB bootloader entries, etc. These actions are unique outputs to the destination system and can't be packaged.

I have no data in front of me, but I'd speculate 70% (?) of DEB/RPM/PKG packages include pre / post install/uninstall scriptlets, it's very common in the space and you see it everywhere in use.

[a96]

There's a huge difference between running a script inside an audited package from a curated source and the curl | sh installers.

[cozzyd]

Right every library will want to run ldconfig for example.