nixpkgs/nixos/modules/services/hardware/spacenavd.nix

{ config, lib, pkgs, ... }:
let cfg = config.hardware.spacenavd;

in {

  options = {
    hardware.spacenavd = {
      enable = lib.mkEnableOption "spacenavd to support 3DConnexion devices";
    };
  };

  config = lib.mkIf cfg.enable {
    systemd.user.services.spacenavd = {
      description = "Daemon for the Spacenavigator 6DOF mice by 3Dconnexion";
      wantedBy = [ "graphical.target" ];
      serviceConfig = {
        ExecStart = "${pkgs.spacenavd}/bin/spacenavd -d -l syslog";
      };
    };
  };
}