{...}: {
  programs.chromium = {enable = true;};

  programs.brave = {enable = true;};

  nixpkgs.config = {
    chromium = {
      # 2019-03-05: missing on 19.03 enablePepperPDF = true;
      # 2021-03-16: missing enablePepperFlash = false;
    };
  };

  programs.browserpass = {browsers = ["chromium" "brave"];};
}