I do not want to take on CRDT lightly, since I want to make sure it doesn't balloon the library - it'd probably be an optional module. I feel like that's one of the next big things to tackle, so does v3.0 sound good? :)

In the meantime try opening up the drawing demo (https://tinybase.org/demos/drawing/) in two or more (of the same) browser windows and move things around. This is just via local storage but imagine how cool it would be to have that across broader collaboration...