My ProseMirror [1] project is in the same space (including using persistent data model detached from the DOM). It has a richer, tree-shaped document model and collaboration [2], but not quite as much programmerpower behind it since I&#x27;m a single OSS dev as opposed to a giant tech company.<p>[1]: <a href="https:&#x2F;&#x2F;prosemirror.net" rel="nofollow">https:&#x2F;&#x2F;prosemirror.net</a>
[2]: <a href="http:&#x2F;&#x2F;marijnhaverbeke.nl&#x2F;blog&#x2F;collaborative-editing.html" rel="nofollow">http:&#x2F;&#x2F;marijnhaverbeke.nl&#x2F;blog&#x2F;collaborative-editing.html</a>