@gonzo_askold @bagder sadly, that is not the case.
There are many corner cases, but the simplest example is "yes all your dependencies are reproducible, but you decide to `cat /dev/random > $PREFIX/my-seed`" or whatever.

@bagder @gonzo_askold @orpach.neocities.org yes, https://reproducible-builds.org/ also apply to nix : https://reproducible.nixos.org/
there was 100% on minimal iso in december, but there is no hard constraint on the whole 100k+ package set from nixkpgs