set wallpaper

modules/home/wallpaper/set-wallpaper.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+# set-wallpaper.sh
+set -euo pipefail
+
+WALLS="${HOME}/wallpapers"
+
+# Pick up wallpaper（jpg/jpeg/png/webp）
+mapfile -t files < <(find "$WALLS" -type f \( -iname '*.jpg' -o -iname '*.jpeg' -o -iname '*.png' -o -iname '*.webp' \))
+[[ ${#files[@]} -gt 0 ]] || exit 0
+
+pick="${files[RANDOM % ${#files[@]}]}"
+
+exec swww img "$pick" --transition-type any --transition-step 90 --transition-fps 60