Okay, sorry for the clickbait. NixOS is not reproducible according to the Reproducible Builds definition. I keep reading people making this claim repeatedly on orange-site, even LWN.net made a similar claim when writing about Nix and Guix earlier this week.1 Along with their recently launched wiki. So, what is the Reproducible Builds definition?2 When is a build reproducible? A build is reproducible if given the same source code, build environment and build instructions, any party can recreate b...