{ stdenv, buildPackages, fetchgit, fetchpatch, perl, buildLinux, ... } @ args:

buildLinux (args // {
  version = "5.3.2020.04.04";
  modDirVersion = "5.3.0";

  src = fetchgit {
    url = "https://evilpiepirate.org/git/bcachefs.git";
    rev = "a27d7265e75f6d65c2b972ce4ac27abfc153c230";
    sha256 = "0wnjl4xs7073d5ipcsplv5qpcxb7zpfqd5gqvh3mhqc5j3qn816x";
  };

  extraConfig = "BCACHEFS_FS m";

  extraMeta = {
    branch = "master";
    hydraPlatforms = []; # Should the testing kernels ever be built on Hydra?
    maintainers = with stdenv.lib.maintainers; [ davidak chiiruno ];
    platforms = [ "x86_64-linux" ];
  };

} // (args.argsOverride or {}))