diff --git a/matugen/files/config.toml b/matugen/files/config.toml
index 36756ca..88d81d5 100644
--- a/matugen/files/config.toml
+++ b/matugen/files/config.toml
@@ -59,3 +59,8 @@ post_hook = 'nohup ~/.config/matugen/scripts/sync-nvim-mac.sh >/dev/null 2>&1 &'
 input_path = '~/.config/matugen/templates/pi-theme.json'
 output_path = '~/.pi/agent/themes/matugen.json.tmp'
 post_hook = 'cat ~/.pi/agent/themes/matugen.json.tmp > ~/.pi/agent/themes/matugen.json && nohup ~/.config/matugen/scripts/sync-pi-mac.sh >/dev/null 2>&1 &'
+
+[templates.wallpaper]
+input_path = '~/.config/matugen/templates/wallpaper-path.txt'
+output_path = '~/.cache/matugen-last-image'
+post_hook = 'nohup ~/.config/matugen/scripts/sync-wallpaper-mac.sh >/dev/null 2>&1 &'
diff --git a/matugen/files/scripts/sync-wallpaper-mac.sh b/matugen/files/scripts/sync-wallpaper-mac.sh
new file mode 100755
index 0000000..cb73758
--- /dev/null
+++ b/matugen/files/scripts/sync-wallpaper-mac.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+set -eu
+
+log_file="$HOME/.cache/matugen-sync-wallpaper.log"
+
+mkdir -p "$HOME/.cache"
+
+{
+  wallpaper_path="$(cat "$HOME/.cache/matugen-last-image")"
+  if [ -n "$wallpaper_path" ]; then
+    base_name="$(basename "$wallpaper_path")"
+    dest_path="$HOME/.cache/matugen-wallpapers/$base_name"
+
+    mkdir -p "$HOME/.cache/matugen-wallpapers"
+    cp -f "$wallpaper_path" "$dest_path"
+
+    ssh mac-attio "mkdir -p ~/.cache/matugen-wallpapers"
+    scp "$dest_path" "mac-attio:~/.cache/matugen-wallpapers/$base_name"
+    ssh mac-attio "osascript -e 'tell application \"System Events\" to tell every desktop to set picture to POSIX file \"~/.cache/matugen-wallpapers/$base_name\"'"
+  fi
+} >>"$log_file" 2>&1
diff --git a/matugen/files/templates/wallpaper-path.txt b/matugen/files/templates/wallpaper-path.txt
new file mode 100644
index 0000000..33b0c5b
--- /dev/null
+++ b/matugen/files/templates/wallpaper-path.txt
@@ -0,0 +1 @@
+{{image}}