[Foxboron]

>- Nix tooling was created 15 years ago exactly for this, Nix is mad to make packages bit-to-bit rebuildable from scratch.

I don't think this is accurate?

Nix is about reproducing system behaviour, largely by capturing the dependency graph and replaying the build. But this doesn't entail bit-for-bit identical binaries. It's very much sits in the same group such as Docker and similar technologies. This is also how I read the original thesis from Eelco[0].

And well, claims like this always rubs me the wrong way since nixos only really started using the word "reproducible builds" after Debian started their efforts in 2015-2016[1], and started their reproducible builds effort later. It also muddies the language since people are now talking about "reproducible builds" in terms of system behavior as well as bit-for-bit identical builds. The result has been that people talk about "verifiable builds" instead.

[0]: https://edolstra.github.io/pubs/phd-thesis.pdf

[1]: https://github.com/NixOS/nixpkgs/issues/9731