u2f-rules.nix

let u2f-rules = let
  rev = "e2ce7b157b76bb384f8aba7acbfa73af2dd2fee7";
  url = "https://raw.githubusercontent.com/Yubico/libu2f-host/${rev}/70-u2f.rules";
  sha256 = "0cydmprvfb442f0hcapd3ac8rb66q0basa89scyzxq1ls61c2cdf";
in pkgs.stdenv.mkDerivation {
  src = pkgs.fetchurl { inherit url sha256; };
  name = "u2f-rules";
  unpackPhase = "true";
  installPhase = ''
    mkdir -p $out/lib/udev/rules.d
    cp $src $out/lib/udev/rules.d/70-u2f.rules
  '';
};