Building a CRDT-based rich-text system that merges concurrent edits across Notion blocks—without losing anyone’s work

Why is Collaborative Data Hard? (Is it?) Matthew Weidner DWeb Seminar 2025 Internet Archive, SF

Most existing algorithms for replicated lists, which are widely used in collaborative text editors, suffer from a problem: when two users concurrently insert text at the same position in the document,...

This blog post describes the resulting demo of collaborative text editing over PowerSync. The demo uses Tiptap as the editor, has basic support for shared cursors and anonymous share links, and includ...

Whether your app is local-first or more traditional, collaborative text editing is a tricky problem that requires advanced algorithms. Or does it? In this ta...