Letter Jam Copyright (c) 2026 Alon Altman This product includes software developed by Google LLC and its contributors, adapted from the Friendly Chat codelab (firebase/codelab-friendlychat-web). Copyright 2015 Google Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use these files except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Scope: the early code in this repository's history, from the initial commits (August 2020), was adapted from that codelab. Those files keep the Apache-2.0 license. Changed files are marked by the commit history; the current tree keeps only generic markup and styling from the codelab.