Looking for the Drupal module? It is drupal.org/project/editor42. This repository is not the module itself, but a dependency of it: the editor library the module loads.

The ready-to-use build of Editor42, the free WYSIWYG HTML editor under the MIT license, packaged as a Drupal library. It holds the same files as the Composer package editor42/editor42 and the npm package editor42, version for version.

You don't install it yourself. The Drupal module drupal/editor42 requires it, so

composer require drupal/editor42

also puts the editor into web/libraries/editor42, where the module loads it from.

Outside Drupal, use editor42/editor42.

License

MIT, see license.txt. The third-party code bundled with the editor is listed in notices.txt.