Software is typically malleable. What software is the hardest to change?
For me, the obvious cases are APIs near the bottom of the stack (e.g. imagine changing a Linux syscall) or systems with a large number of users (due to Hyrum's Law).
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The most common selling point I hear for Nix is having a list of all the packages you need.
On a traditional Linux distro, I just install things and forget about them. A curated, commented list would certainly be handy when I have a new system.
Overall it seems like the Rust for Linux is making huge strides. Greg KH is super supportive of it[1] and the wider Linux community is pretty positive[2] (see all the quotes at the end of the slides).
1: https://lore.kernel.org/rust-for-linux/2025021954-flaccid-pucker-f7d9@gregkh/
2:
I've had a new Linux laptop for several weeks and only just realised that I didn't have `man` installed!
Google is my default the vast majority of the time, and this seems to confirm it.
