nix-config/programs/wm/common/waybar/wm.nix

{
  widgets = {
    "hyprland/workspaces" = {
      format = "{icon}";
      format-icons = {
        default = "";
        active = "";
      };
    };

    "niri/workspaces" = {
      format = "{icon}";
      format-icons = {
        default = "";
        active = "";
      };
    };
  };
}