{
  fetchFromGitHub,
  stdenvNoCC,
  lib,
}:
let
  rev = "cc19c050997d5f54014bb20c764b131e003dfb17";
in
stdenvNoCC.mkDerivation {
  pname = "hategroup_blocklist";
  version = "unstable-" + lib.substring 0 8 rev;

  src = fetchFromGitHub {
    owner = "chigh";
    repo = "hategroup-dnsbl";
    inherit rev;
    hash = "sha256-SZBrjIBUw687MdrbOV7WrP5IhAAtKvPL2GqdcICHNvQ=";
  };

  installPhase = ''
    mkdir -p $out/share
    cp blocklist.txt $out/share/domains.txt

    cat $out/share/domains.txt |
      sed 's/^\([^#].*\)$/0.0.0.0 \1/' > $out/share/hosts.txt
  '';
}