feat: refactor and add recording function on waybar

home/scripts/mkWall.nix

@@ -0,0 +1,17 @@
+{ config, pkgs }:
+let
+  mkWall = pkgs.writeShellScriptBin "setWall" ''
+    url="$1"
+    filepath="/tmp/wall_cache/$(echo -n "$url" | base64 | tr -d '\n')"
+
+    if [[ ! -f "$filepath" ]]; then
+        curl -sL "$url" -o "$filepath"
+    fi
+
+    ${config.services.swww.package}/bin/swww img "$filepath" \
+      --transition-fps 45 \
+      --transition-duration 1 \
+      --transition-type random
+  '';
+in
+mkWall