pinned.nix 177 Bytes
import (
  builtins.fetchTarball {
    url = "https://github.com/NixOS/nixpkgs/archive/20.03.tar.gz";
    sha256 = "0182ys095dfx02vl2a20j1hz92dx3mfgz2a6fhn31bqlp1wa8hlq";
  }
)