nix-configs/modules/hardware/spacenav.nix

{ pkgs, ... }:
{
  environment.systemPackages = with pkgs; [
    spacenavd
    libspnav
  ];
  systemd.services.spacenavd = {
    wantedBy = [ "graphical.target" ];
    script = "${pkgs.spacenavd}/bin/spacenavd -d";
  };
}