nixpkgs/pkgs/applications/networking/browsers/ungoogled-chromium/ungoogled-src.nix

{
  "81.0.4044.92" = {
    rev = "81.0.4044.92-2";
    sha256 = "071a33idn2zcix6z8skn7y85mhb9w5s0bh0fvrjm269y7cmjrh3l";
  };
}