Yjs is one of the oldest and most widely used libraries that enhance web editors by allowing multiple users collaborate over documents in real time, also without requiring continuous network connection. Evernote and Jupyter Notebooks are among many of its prominent users.

During this presentation we'll address some of the common pitfalls that new developers may encounter when working with Yjs library, what architectural foundations are causing them to happen and what can we do to overcome them.

speakers: 'Bartosz Sypytkowski'

link: 'https://fosdem.org/2026/schedule/event/ZYLKMM-optimising-yjs/'