nixos-config/modules/desktop/chromium.nix

{ config, lib, ... }:
{
  config = lib.mkIf (config.sconfig.desktop.enable) {
    nixpkgs.config.chromium.commandLineArgs = toString [
      "--enable-features=WebUIDarkMode"
      "--force-dark-mode"
    ];
    programs.chromium = {
      enable = true;
      extraOpts = {
        AutofillAddressEnabled = false;
        AutofillCreditCardEnabled = false;
        BlockThirdPartyCookies = true;
        BrowserAddPersonEnabled = false;
        BrowserGuestModeEnabled = false;
        DefaultGeolocationSetting = 2;
        DefaultNotificationsSetting = 2;
        NetworkPredictionOptions = 2;
        PasswordManagerEnabled = false;
        ShowFullUrlsInAddressBar = true;
        SyncDisabled = true; # required for BrowsingDataLifetime
        BrowsingDataLifetime = [
          { data_types = [ "browsing_history" ]; time_to_live_in_hours = 24 * 7; }
          { data_types = [ "download_history" ]; time_to_live_in_hours = 6; }
        ];
      };
    };
  };
}