Tiptap is a headless wrapper around ProseMirror – a toolkit for building rich text WYSIWYG editors, which is already in use at many well-known companies such as New York Times, The Guardian or Atlassian.
The pm package is a wrapper package for ProseMirror. This includes all ProseMirror packages that are required to run Tiptap.
Documentation can be found on the Tiptap website.
Tiptap is open sourced software licensed under the MIT license.