For certain data structures the "pure" CRDT approach can get tricky. In our case, we're building a collaborative notes/task IDE [1] which is a hybrid of a text

For certain data structures the "pure" CRDT approach can get tricky. In our case, we're building a collaborative notes/task IDE [1] which is a hybrid of a text editor and an outliner at the same time. So you can perform all the usual text editor operations on a document as if it was text, but the underlying data structure is a tree (or graph really). So just like the example in article we use a hybrid approach and global order for certain (tree) operations to enforce invariants on the data structure when syncing. That still works with offline-mode and end-to-end encryption, but as we don't have the requirement to get rid of a central server we can get away with this model. [1] https://thymer.com https://thymer.com