fixe spacenavd, new wallpaper

modules/desktop/specific-hardware/default.nix

@@ -0,0 +1,6 @@
+{ config, lib, pkgs, ... }:
+{
+  imports = [ 
+    ./spacenav.nix
+  ];
+}

modules/desktop/specific-hardware/spacenav.nix

@@ -0,0 +1,11 @@
+{ config, lib, pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+      spacenavd 
+      libspnav
+  ];
+  systemd.services.spacenavd = {
+    wantedBy = [ "graphical.target" ];
+    script = "${pkgs.spacenavd}/bin/spacenavd -d";
+  };
+}