{...}: {
  config.flake.modules.homeManager.roam-backup = {
    lib,
    config,
    pkgs,
    ...
  }: {
    options.azos.roam-backup.enable = lib.mkOption {
      default = false;
      example = true;
      type = lib.types.bool;
    };

    config = lib.mkIf config.azos.roam-backup.enable {
      home.packages = [
        (pkgs.writeShellScriptBin "roam-backup" ''
          set -e
          cd "$HOME/roam"
          git add -A
          if git diff --cached --quiet; then
            echo "Nothing to commit."
          else
            git commit -m "backup: $(date '+%Y-%m-%d %H:%M')"
          fi
          git push origin
        '')
      ];
    };
  };
}