diff --git a/overrides/assets/javascripts/ua_utils.js b/overrides/assets/javascripts/ua_utils.js
new file mode 100644
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+++ b/overrides/assets/javascripts/ua_utils.js
@@ -0,0 +1,56 @@
+// @Author: avm99963 (https://www.avm99963.com)
+/* @License: The MIT License (MIT)
+
+Copyright (c) 2021 Adrià Vilanova Martínez
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE. */
+
+// Detect the current OS
+function detectOS() {
+  var linuxRegex = /Linux/i;
+  var winRegex = /Win/i;
+  var winNT7 = /NT 7/i;
+  var winNT6 = /NT 6/i;
+  var macRegex = /Mac/i;
+  var crosRegex = /CrOS/i;
+
+  var uaPromise = null;
+  if (navigator.userAgentData) {
+    uaPromise = navigator.userAgentData
+                    .getHighEntropyValues(['platform', 'platformVersion'])
+                    .then(ua => {
+                      return ua?.platform + ' ' + ua?.platformVersion;
+                    });
+  } else {
+    uaPromise = new Promise((res, rej) => {
+      res(navigator.userAgent ?? '');
+    });
+  }
+
+  return uaPromise.then(ua => {
+    if (linuxRegex.test(ua)) return 'linux';
+    if (winRegex.test(ua)) {
+      if (winNT7.test(ua) || winNT6.test(ua)) return 'win_7_or_less';
+      return 'win_latest';
+    }
+    if (macRegex.test(ua)) return 'mac';
+    if (crosRegex.test(ua)) return 'cros';
+    return null;
+  });
+}