Top all-time · #10320
Julien Malka
Personal blog · luj.fr/blogsecuritysystems
Julien Malka's personal blog at luj.fr covers security and systems. Since 2025, 7 different Hacker News readers have linked it 10 times, most often “Is NixOS truly reproducible?”. It is still writing: the last post was on 2025-09-29, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link this blog for its argument that Nix builds are not truly reproducible, which the comment cites against the popular view. The linked post asks whether NixOS is truly reproducible.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
PhD student working on NixOS, software supply chains, and reproducible builds.
Most-linked posts?
- Is NixOS truly reproducible?6 people · 6 mentions · first linked 2025-01-27
- NixOS and reproducible builds could have detected the xz backdoor3 people · 3 mentions · first linked 2025-03-20
What Hacker News says?
Contrary to popular opinion, Nix builds aren't reproducible: https://luj.fr/blog/is-nixos-truly-reproducible.html
Comment linking /blog/is-nixos-truly-reproducible.html
on “Fedora change aims for 99% package reproducibility”Submitted NixOS and reproducible builds could have detected the xz backdoor as a story · 280 points
HN discussionNix cache (cache.nixos.org) does in fact maintain older versions[0]. In fact, they maintain so much older stuff (binaries and associated source), that they are used in both research[1][2] and are having issues with gigantic cache size[3][4]. And yes, their reasoning implies NIH and just unfamiliarity combined with unwillingness to really understand Nix. [0]: https://discourse.nixos.org/t/how-long-is-binary-cache-kep…
Comment linking /blog/is-nixos-truly-reproducible.html
on “Why We're Moving on from Nix”Submitted Is NixOS truly reproducible? as a story · 248 points
HN discussionSubmitted NixOS and reproducible builds could have detected the xz backdoor as a story · 9 points
HN discussionSubmitted Is NixOS Reproducible? as a story · 9 points
HN discussionSubmitted NixOS and reproducible builds could have detected the xz backdoorfor the be as a story · 5 points
HN discussionSubmitted Artiflakery, an easy way to distribute static Nix flake artifacts as a story · 3 points
HN discussionSubmitted Is NixOS Reproducible? as a story · 2 points
HN discussionSubmitted Is NixOS Reproducible? as a story · 2 points
HN discussion