wow

hosts/machine/kanade/modules/mac/wallpaper.nix

@@ -0,0 +1,42 @@
+{
+  pkgs,
+  inputs,
+  ...
+}:
+let
+  wallpaper = "${inputs.self}/assets/wallpaper/wallpaper1.jpg";
+  setWallpaperScript = pkgs.writeShellScriptBin "set-wallpaper-script" ''
+    set -eu
+
+    # System Events runs in the logged-in Aqua session and updates every Space.
+    # Retry because launch agents can start before the desktop is fully ready.
+    for attempt in {1..12}; do
+      if /usr/bin/osascript <<'APPLESCRIPT'
+        tell application "System Events"
+          tell every desktop
+            set picture to "${wallpaper}"
+          end tell
+        end tell
+APPLESCRIPT
+      then
+        exit 0
+      fi
+
+      /bin/sleep 5
+    done
+
+    exit 1
+  '';
+in
+{
+  environment.systemPackages = [ setWallpaperScript ];
+
+  launchd.user.agents.set-wallpaper = {
+    command = "${setWallpaperScript}/bin/set-wallpaper-script";
+    serviceConfig = {
+      RunAtLoad = true;
+      ProcessType = "Interactive";
+      LimitLoadToSessionType = "Aqua";
+    };
+  };
+}