[question] Is it possible to subscribe dynamically to ToDo notes?

[Dmitrii Volykhin]

For example, Bob shares the link to subscribe on note22, Alice subscribes on note22. Now Alice gets all updates on note22.

Before:
Alice
-note11
-note12
-note13

Bob
-note21
-note22

After:
Alice
-note11
-note12
-note13
-note22

Bob
-note21
-note22

One of the approaches is that every user has own Merkle tree, and when Alice subscribes on note22, we insert timestamps of note22 to the Alice Merkle tree, so she will get an update on the next sync.