self: super: {
  iodine = super.iodine.overrideAttrs (oldAttrs: {
    version = "unstable-2022-06-18";
    nativeBuildInputs = oldAttrs.nativeBuildInputs or [ ] ++ (with self; [ pkg-config systemd ]);
    src = super.fetchFromGitHub {
      owner = "yarrick";
      repo = "iodine";
      rev = "df49fd6f3d9030662374bfbdcca3e74327084f5e";
      sha256 = "sha256-+hjeeCn88ZL0EYX+bijfBWprZUFPrvr9DkJLFkkNqkU=";
    };
  });
}