Move notes configuration

hosts/t480/configuration.nix

@@ -27,6 +27,7 @@
     ../../users/opdavies
 
     ./modules/newsboat
+    ./modules/notes.nix
   ];
 
   nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];

hosts/t480/modules/notes.nix

@@ -0,0 +1,18 @@
+{
+  home-manager.users.opdavies =
+    { config, pkgs, ... }:
+    {
+      xdg = {
+        enable = true;
+        userDirs.enable = true;
+      };
+
+      home = {
+        packages = with pkgs; [ notes ];
+
+        sessionVariables = {
+          NOTES_DIRECTORY = "${config.xdg.userDirs.documents}/wiki/notes";
+        };
+      };
+    };
+}