Import the pebble dev site into devsite/

devsite/source/404.html

@@ -0,0 +1,51 @@
+---
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+layout: default
+title: Oops! 404, Page not found
+footer: true
+error404: true
+scripts:
+  - '404'
+
+menu_section: none
+---
+<div class="row full-height" style="overflow: hidden;">
+  <div class="col-s-4 text-center hidden-xs hidden-s">
+    <img src="{{ site.asset_path }}/images/404-pebble.png" style="margin: -50% 50px 0;">
+  </div>
+  <div class="col-s-8">
+    <div class="container">
+      <div class="row">
+        <div class="col-l-12">
+          <h1 class="page-title">404 Page Not Found</h1>
+          <p>
+            Sorry, we couldn't find the page you were looking for.
+          </p>
+          <p>
+            If you clicked a link on the site and it led you here, we would
+            appreciate you <a href="/contact/?type=404">letting us know that we
+            broke something.</a>
+          </p>
+          <p id="js-404-search-intro" style="display: none;">
+            Below are some suggested pages that might be helpful in finding what
+            you were trying to find!
+          </p>
+          <ul id="js-404-search"></ul>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>