`nix-build` can take `--check` to do a similar thing. However, not all packages are reproducible. We've been doing a bit of work on this: https://garbas.si/2016

`nix-build` can take `--check` to do a similar thing. However, not all packages are reproducible. We've been doing a bit of work on this: https://garbas.si/2016/reproducible-builds-summit-in-berlin.html https://garbas.si/2016/reproducible-builds-summit-in-berlin.... and have begun checking reproducibility in our CI system: http://hydra.nixos.org/jobset/nixos/reproducibility http://hydra.nixos.org/jobset/nixos/reproducibility