diff -ru a/babel.config.js b/babel.config.js
--- a/babel.config.js	2026-07-01 19:17:00.000000000 +0000
+++ b/babel.config.js	2026-07-01 19:17:00.000000000 +0000
@@ -1,9 +1,3 @@
-import child_process from "child_process";
-
-function git(command) {
-  return child_process.execSync(`git ${command}`, { encoding: "utf8" }).trim();
-}
-
 export default {
   plugins: [
     ...(process.env["NODE_ENV"] != "production"
@@ -13,7 +7,8 @@
     [
       "transform-define",
       {
-        ENV_VERSION: `${process.env.npm_package_version} (${git("rev-parse --short HEAD")})`,
+        // FredyGames: built from a source tarball, without .git; the commit is fixed here.
+        ENV_VERSION: `${process.env.npm_package_version} (c70d63c)`,
         ENV_INCLUDE_SERVICE_WORKER:
           process.env["NODE_ENV"] == "production" &&
           !process.env["SKIP_SERVICE_WORKER"],
diff -ru a/src/index.html b/src/index.html
--- a/src/index.html	2026-07-01 19:17:00.000000000 +0000
+++ b/src/index.html	2026-07-01 19:17:00.000000000 +0000
@@ -14,13 +14,11 @@
       href="../assets/icons/icon-180.png"
       sizes="180x180"
     />
-    <link rel="manifest" href="manifest.json" />
     <meta
       name="viewport"
       content="user-scalable=no, maximum-scale=1, minimum-scale=1, viewport-fit=cover, width=device-width"
     />
     <meta name="mobile-web-app-capable" content="yes" />
-    <meta name="apple-itunes-app" content="app-id=6754282700" />
     <meta name="apple-mobile-web-app-capable" content="yes" />
     <meta name="apple-mobile-web-app-status-bar-style" content="black" />
     <link rel="canonical" href="https://play.tessel.at/" />
@@ -199,6 +197,21 @@
         <a href="https://play.tessel.at/about/">documentation</a>.
       </p>
     </div>
+    <script type="text/javascript">
+      // FredyGames: the game runs inside a frame on another site, where pages such as GitHub
+      // refuse to open; links to other sites open in a new tab instead.
+      document.addEventListener(
+        "click",
+        function (evt) {
+          const a = evt.target.closest && evt.target.closest("a[href]");
+          if (a && /^https?:/.test(a.href) && a.origin != location.origin) {
+            a.target = "_blank";
+            a.rel = "noopener";
+          }
+        },
+        true,
+      );
+    </script>
     <script type="module" src="main.browser.ts"></script>
   </body>
 </html>
diff -ru a/src/main.browser.ts b/src/main.browser.ts
--- a/src/main.browser.ts	2026-07-01 19:17:00.000000000 +0000
+++ b/src/main.browser.ts	2026-07-01 19:17:00.000000000 +0000
@@ -18,9 +18,22 @@
     wb.register();
 }
 
+// FredyGames: on the Portuguese pages of the site, Brazilian Portuguese is the default language
+// (a language chosen in the settings still wins).
+function siteLanguage(): string {
+    try {
+        if (window.top !== window && /^\/pt-br\//.test(window.top!.location.pathname)) {
+            return "pt-BR";
+        }
+    } catch {
+        // a frame on another origin: keep the browser language
+    }
+    return navigator.language;
+}
+
 removeSplash();
 startMainMenu({
-    language: navigator.language,
+    language: siteLanguage(),
     useCustomHistory: false,
     workbox: wb,
     platform: "web",
diff -ru a/src/main.shared.ts b/src/main.shared.ts
--- a/src/main.shared.ts	2026-07-01 19:17:00.000000000 +0000
+++ b/src/main.shared.ts	2026-07-01 19:17:00.000000000 +0000
@@ -31,10 +31,8 @@
         .addEventListener("change", setColorScheme);
     setColorScheme();
 
-    if (window.location.pathname != "/") {
-        window.location.href = "/";
-        return;
-    }
+    // FredyGames: the game is served from a subfolder (bundles/tessel/<hash>/index.html), so it does
+    // not jump to the site root ("/") when the path is something else.
 
     StatisticsMonitor.instance.storageBackend = getStorageBackend();
     await prepareI18n(config.language);
diff -ru a/src/ui/shared/icons.ts b/src/ui/shared/icons.ts
--- a/src/ui/shared/icons.ts	2026-07-01 19:17:00.000000000 +0000
+++ b/src/ui/shared/icons.ts	2026-07-01 19:17:00.000000000 +0000
@@ -61,8 +61,10 @@
         '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512"><!--!Font Awesome Free v7.1.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.--><path d="M9.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l160 160c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L77.3 256 214.6 118.6c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-160 160z"/></svg>',
     gridIcon:
         '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M362 229c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48h-54c-26.5 0-48-21.5-48-48zm-181 0c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48h-54c-26.5 0-48-21.5-48-48zM0 229c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48Zm362 181c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48h-54c-26.5 0-48-21.5-48-48zm-181 0c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48h-54c-26.5 0-48-21.5-48-48zM0 410c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48ZM362 48c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48h-54c-26.5 0-48-21.5-48-48zm-181 0c0-26.5 21.5-48 48-48h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48h-54c-26.5 0-48-21.5-48-48zM0 48C0 21.5 21.5 0 48 0h54c26.5 0 48 21.5 48 48v54c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48Z"/></svg>',
+    // FredyGames: the original book icon is from Font Awesome Pro (commercial licence); this is the
+    // "book-open" icon from Font Awesome Free 6.7.2 (CC BY 4.0) instead.
     bookIcon:
-        '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--!Font Awesome Pro v7.1.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license (Commercial License) Copyright 2025 Fonticons, Inc.--><path d="M256 141.3l0 309.3 .5-.2C311.1 427.7 369.7 416 428.8 416l19.2 0 0-320-19.2 0c-42.2 0-84.1 8.4-123.1 24.6-16.8 7-33.4 13.9-49.7 20.7zM230.9 61.5L256 72 281.1 61.5C327.9 42 378.1 32 428.8 32L464 32c26.5 0 48 21.5 48 48l0 352c0 26.5-21.5 48-48 48l-35.2 0c-50.7 0-100.9 10-147.7 29.5l-12.8 5.3c-7.9 3.3-16.7 3.3-24.6 0l-12.8-5.3C184.1 490 133.9 480 83.2 480L48 480c-26.5 0-48-21.5-48-48L0 80C0 53.5 21.5 32 48 32l35.2 0c50.7 0 100.9 10 147.7 29.5z"/></svg>',
+        '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"><!--! Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc. --><path d="M249.6 471.5c10.8 3.8 22.4-4.1 22.4-15.5l0-377.4c0-4.2-1.6-8.4-5-11C247.4 52 202.4 32 144 32C93.5 32 46.3 45.3 18.1 56.1C6.8 60.5 0 71.7 0 83.8L0 454.1c0 11.9 12.8 20.2 24.1 16.5C55.6 460.1 105.5 448 144 448c33.9 0 79 14 105.6 23.5zm76.8 0C353 462 398.1 448 432 448c38.5 0 88.4 12.1 119.9 22.6c11.3 3.8 24.1-4.6 24.1-16.5l0-370.3c0-12.1-6.8-23.3-18.1-27.6C529.7 45.3 482.5 32 432 32c-58.4 0-103.4 20-123 35.6c-3.3 2.6-5 6.8-5 11L304 456c0 11.4 11.7 19.3 22.4 15.5z"/></svg>',
     anglesUpDownIcon:
         '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M278.6 9.375c-12.5-12.5-32.8-12.5-45.3 0l-160 160c-12.5 12.5-12.5 32.8 0 45.3s32.8 12.5 45.3 0L256 77.275l137.4 137.3c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3l-160-160zm-45.2 493.25c12.5 12.5 32.8 12.5 45.3 0l160-160c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0L256 434.725l-137.4-137.3c-12.5-12.5-32.8-12.5-45.3 0s-12.5 32.8 0 45.3l160 160Z"/></svg>',
     addTilesIcon: