You don't really 'introduce non-determinism'. That's like saying, "why did you introduce entropy?" It's there. It happens, and it's difficult to get rid of in

You don't really 'introduce non-determinism'. That's like saying, "why did you introduce entropy?" It's there. It happens, and it's difficult to get rid of in any complex system. https://en.wikipedia.org/wiki/Reproducible_builds https://en.wikipedia.org/wiki/Reproducible_builds https://wiki.debian.org/ReproducibleBuilds https://wiki.debian.org/ReproducibleBuilds https://www.win.tue.nl/~aeb/linux/hh/thompson/trust.html https://www.win.tue.nl/~aeb/linux/hh/thompson/trust.html Debian was one of the first large distributions to use a build farm for many different architectures. Maintaining deterministic builds (even as far as just file timestamps) in a distributed environment is very challenging.