Hostname-agnostic nix-darwin configuration?

I’m looking at the output of the default flake.nix that’s create by nix-darwin

darwinConfigurations."Johns-MacBook" = nix-darwin.lib.darwinSystem {
  modules = [ configuration ];
};

Is there a way to define a default nix-darwin configuration so that a specific hostname (e.g., “Johns-Macbook”) doesn’t need to be specified when darwin-rebuild switch is called.

It should be based on your current host’s name.