diff --git a/update_uad.php b/update_uad.php
index b3d9bbc..55ad45a 100644
--- a/update_uad.php
+++ b/update_uad.php
@@ -1 +1,48 @@
 <?php
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+
+const LIST_JSON = 'https://raw.githubusercontent.com/0x192/universal-android-debloater/master/resources/assets/uad_lists.json';
+
+$list = json_decode(file_get_contents(LIST_JSON), true);
+
+$new_list = array();
+
+foreach ($list as $item) {
+    $new_item = array();
+    $new_item['id'] = $item['id'];
+    $new_item['description'] = $item['description'];
+    $new_item['removal'] = get_removal($item['removal']);
+    if ($item['dependencies'] != null) {
+        $new_item['dependencies'] = $item['dependencies'];
+    }
+    if ($item['neededBy'] != null) {
+        $new_item['required_by'] = $item['neededBy'];
+    }
+    $list_type = strtolower($item['list']);
+    if (!isset($new_list[$list_type])) {
+        $new_list[$list_type] = array();
+    }
+    // For now, exclude `unsafe` items
+    if ($new_item['removal'] != 'unsafe') {
+        $new_list[$list_type][] = $new_item;
+    }
+}
+
+# Save to dir
+foreach ($new_list as $list_type => $list) {
+    file_put_contents(__DIR__ . '/' . $list_type . '.json', json_encode($list, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT));
+}
+
+function get_removal(string $uad_removal): string {
+    switch ($uad_removal) {
+        default:
+        case "Recommended":
+            return "delete";
+        case "Advanced":
+            return "replace";
+        case "Expert":
+            return "caution";
+        case "Unsafe":
+            return "unsafe";
+    }
+}
\ No newline at end of file