enable 'shikane' on 'astyanax' (and add 'wdisplays')

home/hosts/astyanax/default.nix

@@ -13,6 +13,7 @@ in
     ../../modules/desktop/niri
     ../../modules/git.nix
     ../../modules/k9s.nix
+    (import ../../modules/shikane.nix { inherit pkgs; })
     (import ../../modules/taskwarrior.nix {
       inherit config;
       inherit pkgs;

home/modules/shikane.nix

@@ -0,0 +1,6 @@
+{ pkgs, ... }:
+
+{
+  home.packages = with pkgs; [ wdisplays ];
+  services.shikane.enable = true;
+}